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Title: What frequency works best for Antminer S7? Post by: DRKMSTR on November 29, 2015, 07:22:07 AM Please post your results, there are a lot of frequencies and setups, so please post the following in this format.
Batch: Batch# Frequency: Freq# Hashrate: Hashrate# Power consumption: PowerConsumption# (If possible) Fan Speed: FanSpeedPercentage# Avg Blade Temperature: TempInCelcius# Hardware Errors Per Day: HWerrors# For example: Batch: 6 Frequency: 575 Hashrate: 3.82TH/s Power consumption: N/A Fan Speed: 35% Avg Blade Temperature: 54C Hardware Errors Per Day: 3/day Title: Re: What frequency works best for Antminer S7? Post by: dimke_yu on November 29, 2015, 10:03:14 AM Batch: 4
Frequency: 575 Hashrate: 4.6TH/s Power consumption: 1112W from the wall Fan Speed: 45% fixed Avg Blade Temperature: 45C Hardware Errors Per Day: 0.0147% Title: Re: What frequency works best for Antminer S7? Post by: Tupsu on November 29, 2015, 10:04:56 AM Attention:
Below is the corresponding default frequency for S7 miners with hash rate and batch #. https://www.bitmaintech.com/bm_tech_admin_at_123/userfiles/image/1111.jpg With overclocking you lose the warranty. Title: Re: What frequency works best for Antminer S7? Post by: DRKMSTR on November 29, 2015, 02:38:48 PM Batch: 4 Frequency: 575 Hashrate: 4.6TH/s Power consumption: 1112W from the wall Fan Speed: 45% fixed Avg Blade Temperature: 45C Hardware Errors Per Day: 0.0147% How are those temperatures on your miner? Does it perform better at slightly higher temps? Mine tends to gain an extra 100GH when it runs around 55C. I haven't tried going for below 50C yet though. Title: Re: What frequency works best for Antminer S7? Post by: rockyforever on November 29, 2015, 09:10:55 PM Batch: 2
Frequency: 606.25 Hashrate: 4,905.24 (21 day average) Power consumption: 1120 Fan Speed: standard - 4,080 (rpm) and 3,840 (rpm) Avg Blade Temperature: 48 Hardware Errors Per Day: 0.0024% Title: Re: What frequency works best for Antminer S7? Post by: Finksy on November 29, 2015, 11:56:12 PM No need to put down power consumption, their efficiency is basically fixed @ 0.25 W/GHs or 0.275 W/GHs ATW (depending on model) regardless of clock speed Edit: if your input voltage stays the same. From Dogie's Antminer S7 setup thread (https://bitcointalk.org/index.php?topic=1194785.msg12538826#msg12538826), not sure who to give credit for it if not him: Edit: I assume this is at roughly +12V input
https://i.imgur.com/DHuPnHi.png Title: Re: What frequency works best for Antminer S7? Post by: RichBC on November 30, 2015, 11:13:49 AM No need to put down power consumption, their efficiency is basically fixed @ 0.25 W/GHs or 0.275 W/GHs ATW (depending on model) regardless of clock speed. Efficiency is only fixed for a single supply voltage. If people are running at more or less than 12V it will change. An interesting measurement would be peoples actual supply voltage measured at the PCIe connector? Rich Title: Re: What frequency works best for Antminer S7? Post by: philipma1957 on November 30, 2015, 03:00:13 PM No need to put down power consumption, their efficiency is basically fixed @ 0.25 W/GHs or 0.275 W/GHs ATW (depending on model) regardless of clock speed. Efficiency is only fixed for a single supply voltage. If people are running at more or less than 12V it will change. An interesting measurement would be peoples actual supply voltage measured at the PCIe connector? Rich My batch one is pretty much a dog My batch two is pretty much a unicorn. That said both of them can do 5000gh if you give them 12.5 volts. This gear loves a hot psu. Title: Re: What frequency works best for Antminer S7? Post by: Finksy on November 30, 2015, 07:31:01 PM Efficiency is only fixed for a single supply voltage. If people are running at more or less than 12V it will change. An interesting measurement would be peoples actual supply voltage measured at the PCIe connector? Rich Of course, sorry I meant for a given input voltage. I.E. if your power supply stays the same, over/under clocking will have little to no effect on YOUR unit's efficiency, only the heat generated/overall power usage. I'll take voltage measurements at the plugs when I get a chance to visit "My Friend". It's interesting both how important actual voltage output of a PSU has become w/ string design, and how picky some of the new hardware can be about under-volting. Title: Re: What frequency works best for Antminer S7? Post by: beffje on December 01, 2015, 03:49:17 PM Batch: Batch 1
Frequency: 625 Hashrate: 5 th Power consumption: 1225 at wall Corsair RM1000 and RM650 Fan Speed: 30% 2760/2520 RPM Avg Blade Temperature: 60 Hardware Errors: 0.0090% Title: Re: What frequency works best for Antminer S7? Post by: philipma1957 on December 01, 2015, 03:56:52 PM Efficiency is only fixed for a single supply voltage. If people are running at more or less than 12V it will change. An interesting measurement would be peoples actual supply voltage measured at the PCIe connector? Rich Of course, sorry I meant for a given input voltage. I.E. if your power supply stays the same, over/under clocking will have little to no effect on YOUR unit's efficiency, only the heat generated/overall power usage. I'll take voltage measurements at the plugs when I get a chance to visit "My Friend". It's interesting both how important actual voltage output of a PSU has become w/ string design, and how picky some of the new hardware can be about under-volting. It is good for you as the 4000 watt 2x psu you sell has the ability to do more then one voltage. In fact I no longer think atx psu's are worth using on the s-7 or the avalon 6 unless you have 120 volt power. I think your adjustable units that you are selling for j4bberwock are the way to go. Title: Re: What frequency works best for Antminer S7? Post by: Finksy on December 01, 2015, 04:43:40 PM It is good for you as the 4000 watt 2x psu you sell has the ability to do more then one voltage. In fact I no longer think atx psu's are worth using on the s-7 or the avalon 6 unless you have 120 volt power. I think your adjustable units that you are selling for j4bberwock are the way to go. Yes I am excited to produce some and try them out. The one demo model I got from him I had to send out to get the side/front panels figured out. Should be receiving the PCB's and start soldering this week. Title: Re: What frequency works best for Antminer S7? Post by: philipma1957 on December 01, 2015, 08:46:39 PM It is good for you as the 4000 watt 2x psu you sell has the ability to do more then one voltage. In fact I no longer think atx psu's are worth using on the s-7 or the avalon 6 unless you have 120 volt power. I think your adjustable units that you are selling for j4bberwock are the way to go. Yes I am excited to produce some and try them out. The one demo model I got from him I had to send out to get the side/front panels figured out. Should be receiving the PCB's and start soldering this week. yeah both the s-7 and avalon 6 have show they want a hot psu 12.2 12.4 12.6 your new 2000 2x setup will be very good for them. better then the 2880 units. I want one when you get them in. Title: Re: What frequency works best for Antminer S7? Post by: geotete on December 03, 2015, 09:42:40 PM Hi Everybody,
What batch is mine? Since the seller didn't specified? What I have in the sticker is: AntMiner S7 Submodel:S7_4.86 Model: S7 Version:V2.01 All the best, Geotete Title: Re: What frequency works best for Antminer S7? Post by: hodedowe on December 03, 2015, 09:45:39 PM Hi Everybody, What batch is mine? Since the seller didn't specified? What I have in the sticker is: AntMiner S7 Submodel:S7_4.86 Model: S7 Version:V2.01 All the best, Geotete That's batch 3, 5, or 1. That's the best I can do at narrowing it down. Title: Re: What frequency works best for Antminer S7? Post by: Tupsu on December 03, 2015, 10:54:09 PM Hi Everybody, What batch is mine? Since the seller didn't specified? What I have in the sticker is: AntMiner S7 Submodel:S7_4.86 Model: S7 Version:V2.01 All the best, Geotete late Batch 5 Title: Re: What frequency works best for Antminer S7? Post by: Biodom on December 04, 2015, 04:30:40 AM It is good for you as the 4000 watt 2x psu you sell has the ability to do more then one voltage. In fact I no longer think atx psu's are worth using on the s-7 or the avalon 6 unless you have 120 volt power. I think your adjustable units that you are selling for j4bberwock are the way to go. Yes I am excited to produce some and try them out. The one demo model I got from him I had to send out to get the side/front panels figured out. Should be receiving the PCB's and start soldering this week. a naive question, perhaps, but are 2880W PSUs capable of slightly more than 12V or only 4000w "beasts" can do it? I am just curious. Title: Re: What frequency works best for Antminer S7? Post by: Finksy on December 04, 2015, 06:37:10 AM It is good for you as the 4000 watt 2x psu you sell has the ability to do more then one voltage. In fact I no longer think atx psu's are worth using on the s-7 or the avalon 6 unless you have 120 volt power. I think your adjustable units that you are selling for j4bberwock are the way to go. Yes I am excited to produce some and try them out. The one demo model I got from him I had to send out to get the side/front panels figured out. Should be receiving the PCB's and start soldering this week. a naive question, perhaps, but are 2880W PSUs capable of slightly more than 12V or only 4000w "beasts" can do it? I am just curious. The IBM 2880's typically put out slightly over 12V, but only the 4K boards will have the option to under or over volt at this time. I believe J4bberwock has plans for more server PSU's that allow voltage control, but I'll leave that up to him when he's ready. Title: Re: What frequency works best for Antminer S7? Post by: geotete on December 04, 2015, 08:17:13 AM Hi, again,
Since mine is a late batch 5, here it goes: All the values, are in a controlled temperature room, at a steady 14ºC all year around, with a humidity of 60%. I don't know the power consumption, but I have 2x 1250w HP PSU, powering the S7. The values, are a average calculated, at 48 hours each. http://www.dfagundes.com/Foruns/value.jpg Since, I don't know how to interpreter this values, your help is appreciated! I don't know if have any gain in going at more than 625... All the Best, Geotete Title: Re: What frequency works best for Antminer S7? Post by: goxed on December 04, 2015, 02:50:14 PM Title: Re: What frequency works best for Antminer S7? Post by: Prelude on December 04, 2015, 03:13:32 PM Could you post a screen shot of a 24+ hour run time please? Title: Re: What frequency works best for Antminer S7? Post by: goxed on December 04, 2015, 03:57:27 PM Could you post a screen shot of a 24+ hour run time please? Title: Re: What frequency works best for Antminer S7? Post by: Finksy on December 04, 2015, 03:59:50 PM Temperature sure came up overnight eh? Looks like hashrate is holding steady though, you going to leave it at that clock?
Title: Re: What frequency works best for Antminer S7? Post by: goxed on December 04, 2015, 04:26:08 PM Temperature sure came up overnight eh? Looks like hashrate is holding steady though, you going to leave it at that clock? Yes, will leave it at that. I see my miners as super-depreciatory assets.Title: Re: What frequency works best for Antminer S7? Post by: Finksy on December 04, 2015, 04:27:40 PM Amen to that... Would love to know if efficiency has decreased at all at that clock speed, if you ever get a chance to measure ATW consumption!
Title: Re: What frequency works best for Antminer S7? Post by: yslyung on December 04, 2015, 06:15:45 PM It is good for you as the 4000 watt 2x psu you sell has the ability to do more then one voltage. In fact I no longer think atx psu's are worth using on the s-7 or the avalon 6 unless you have 120 volt power. I think your adjustable units that you are selling for j4bberwock are the way to go. Yes I am excited to produce some and try them out. The one demo model I got from him I had to send out to get the side/front panels figured out. Should be receiving the PCB's and start soldering this week. a naive question, perhaps, but are 2880W PSUs capable of slightly more than 12V or only 4000w "beasts" can do it? I am just curious. The IBM 2880's typically put out slightly over 12V, but only the 4K boards will have the option to under or over volt at this time. I believe J4bberwock has plans for more server PSU's that allow voltage control, but I'll leave that up to him when he's ready. afaik, the 2000bb's can be adjusted up to around 12.5-12.8V & down to about 11.6V in it's original form. i got mine to 12.5V with loads at the pcie cables attached to the s7's. you can even go higher than 14V up to over 200A on the 2000bb's but will have to mod pins with pot + resistor. the 2880w not sure if the voltage can be adjusted. but i'm sure that the stock voltage would be around 12.2V range. that i hope j4b can chime in. i feel alot more comfortable around 12.5V on the s7's tbh regardless of oc or uc. i think max is 13V on load for the bm1385 chips & also as per bmt recommendations. i could be wrong .. someone with more tech knowledge pls do chime in. i posted up some pics on the s7 thread https://bitcointalk.org/index.php?topic=1165628.msg13130691#msg13130691 Title: Re: What frequency works best for Antminer S7? Post by: RichBC on December 04, 2015, 06:26:28 PM i feel alot more comfortable around 12.5V on the s7's tbh regardless of oc or uc. i think max is 13V on load for the bm1385 chips & also as per bmt recommendations. i could be wrong .. someone with more tech knowledge pls do chime in. Going by the BM1385 Data sheet you should be ok even with 14V although I agree that 13V is a safe maximum. Also remember this does not apply to the 135 chip Batches 6 & 8 where you should stick with the Bitmain spec of 11.60 ~13.00V at least until we have confirmed that it is fitted with a Buck Converter, in which case there will be no value in varying the voltage. Rich Title: Re: What frequency works best for Antminer S7? Post by: Dophoeve on December 05, 2015, 10:43:09 AM Hey, A quick question, since I have also the S7 B7. Did you just put the frequency up to 687 with the standard firmware, or you first updated the firmware? Is this hashpower created to just making the frequency larger? Greetz, Dophoeve [edit]: and whats that with the Asics # 54?, mine says 45 Title: Re: What frequency works best for Antminer S7? Post by: Tupsu on December 05, 2015, 02:10:27 PM Hey, A quick question, since I have also the S7 B7. You probably do not have Batch7 miner. [edit]: and whats that with the Asics # 54?, mine says 45 3x 45 Asics is AntminerS7 batch 6 and Batch 8 Title: Re: What frequency works best for Antminer S7? Post by: philipma1957 on December 05, 2015, 02:24:47 PM Amen to that... Would love to know if efficiency has decreased at all at that clock speed, if you ever get a chance to measure ATW consumption! when I used this psu with the s-7 https://www.trcelectronics.com/ecomm/pdf/rsp1500.pdf I set volts to 13 and ran both the s-7 and the avalon 6 in both cases efficiency drops a bit the s-7 is .26 on this psu at 600 clock and drifted up to .29 running at freq 631.25 my batch 1 got pretty hot and loud so I can't do long runs with fans blowing at 4200 rpm. This psu was purchased for testing the s-7 and avalon 6 for underclock not overclock. And right now under clock under volt is a no go. But I have determined this. both the s-7 and the avalon 6 should have at least 12.2 volts not 11.9 this means finksy + j4bberwock has the best units to mine the 2x 2000 units with a few volts setting are the best gear (240 volts fuck the sound). At finksy pm me when I can get one of them. I no longer tell anyone to use ATX psu with this gear. Unless you have only 120 volts power Title: Re: What frequency works best for Antminer S7? Post by: blockchainmines on December 05, 2015, 05:03:16 PM Please post your results, there are a lot of frequencies and setups, so please post the following in this format. Batch: Batch# Frequency: Freq# Hashrate: Hashrate# Power consumption: PowerConsumption# (If possible) Fan Speed: FanSpeedPercentage# Avg Blade Temperature: TempInCelcius# Hardware Errors Per Day: HWerrors# For example: Batch: 6 Frequency: 575 Hashrate: 3.82TH/s Power consumption: N/A Fan Speed: 35% Avg Blade Temperature: 54C Hardware Errors Per Day: 3/day Honestly for me every miner is a little different. With the exception of the 2 batch 7's the firmware is on those factory installed and on one of them I left it at 625 MHz and it mined at the advertised 5TH, the second batch 7 at 625 was performing poorly and I was only getting around 3.8TH so I dropped the freq to 600 and then is jumped up to 5TH. The 19 others I have are batch 2 (which were advertised to run at 4.66TH at 575 TH), I flashed them with the most recent Bitmain firmware that supports the 600Mhz setting. When I had the time I found that really going through them slowly and taking my time tweaking with the frequency (and not always up) making small changes has made an incredible difference. For instance, I have some of mine set at 606MHz and some set 593Mhz. I do not think I have anything set over 625 but you can certainly try. Just make sure you are monitoring it closely when you make changes like that. I guess the whole point I am getting at is there is not perfect setting for every single miner out there. You can have rough guidelines that work for most but if you are trying to dial in your farm, then you need to play with the settings to see what works with your farm. Also keep in mind not all miners are going to perform at the highest Th rating possible. Some of my miners no matter what settings I have changed and close I think I have dialed it in, I have had to settle for 4.5Th when I should be getting 4.8 and that ok, its just the way it goes. If you are interested you can check out my mining set up here https://www.youtube.com/watch?v=K1C2LQnBr2Y (https://www.youtube.com/watch?v=K1C2LQnBr2Y) If you like it, subscribe as I am always adding new content and I love audience feedback. I look at bitcoin as a group learning effort. In fact your thread has kinda of inspired me to create some kind of video addressing this very issue because I have seen this question or variations to this question come up before where people have had performance issues when dealing with several of the same type of bitmain products. They are frustrated why two or more of the exact same product do not operate the exact same way. I hope this help! Title: Re: What frequency works best for Antminer S7? Post by: RichBC on December 05, 2015, 05:26:47 PM Honestly for me every miner is a little different. With the exception of the 2 batch 7's the firmware is on those factory installed and on one of them I left it at 625 MHz and it mined at the advertised 5TH, the second batch 7 at 625 was performing poorly and I was only getting around 3.8TH so I dropped the freq to 600 and then is jumped up to 5TH. The 19 others I have are batch 2 (which were advertised to run at 4.66TH at 575 TH), I flashed them with the most recent Bitmain firmware that supports the 600Mhz setting. When I had the time I found that really going through them slowly and taking my time tweaking with the frequency (and not always up) making small changes has made an incredible difference. For instance, I have some of mine set at 606MHz and some set 593Mhz. I do not think I have anything set over 625 but you can certainly try. Just make sure you are monitoring it closely when you make changes like that. I guess the whole point I am getting at is there is not perfect setting for every single miner out there. You can have rough guidelines that work for most but if you are trying to dial in your farm, then you need to play with the settings to see what works with your farm. Also keep in mind not all miners are going to perform at the highest Th rating possible. Some of my miners no matter what settings I have changed and close I think I have dialed it in, I have had to settle for 4.5Th when I should be getting 4.8 and that ok, its just the way it goes. If you are interested you can check out my mining set up here Very interesting. I am a firm believer that all miners are different and benefit from monitoring and adjustment to get the best from them. I have a couple of questions? :) If I understand correctly your approach seems to be to find the frequency at which the best hash rate is achieved? When doing this do you also look at the HW error rate and do you find when the Hash Rate is lower than expected for a Frequency that the HW error rate is high or is the error rate still ok? Next have you considered that there could be a difference in your PSU's and that supply voltage that the miner has on the PCIe connectors could be different in some cases and that is influencing it's ability to hash at higher frequencies? If you are not monitoring the voltage I would urge you to include it in your adjustment protocol as it may well add another dimension and enable you to achieve higher hash rates? Rich Title: Re: What frequency works best for Antminer S7? Post by: Finksy on December 05, 2015, 09:01:21 PM Honestly for me every miner is a little different. With the exception of the 2 batch 7's the firmware is on those factory installed and on one of them I left it at 625 MHz and it mined at the advertised 5TH, the second batch 7 at 625 was performing poorly and I was only getting around 3.8TH so I dropped the freq to 600 and then is jumped up to 5TH. The 19 others I have are batch 2 (which were advertised to run at 4.66TH at 575 TH), I flashed them with the most recent Bitmain firmware that supports the 600Mhz setting. When I had the time I found that really going through them slowly and taking my time tweaking with the frequency (and not always up) making small changes has made an incredible difference. For instance, I have some of mine set at 606MHz and some set 593Mhz. I do not think I have anything set over 625 but you can certainly try. Just make sure you are monitoring it closely when you make changes like that. I guess the whole point I am getting at is there is not perfect setting for every single miner out there. You can have rough guidelines that work for most but if you are trying to dial in your farm, then you need to play with the settings to see what works with your farm. Also keep in mind not all miners are going to perform at the highest Th rating possible. Some of my miners no matter what settings I have changed and close I think I have dialed it in, I have had to settle for 4.5Th when I should be getting 4.8 and that ok, its just the way it goes. If you are interested you can check out my mining set up here https://www.youtube.com/watch?v=K1C2LQnBr2Y (https://www.youtube.com/watch?v=K1C2LQnBr2Y) If you like it, subscribe as I am always adding new content and I love audience feedback. I look at bitcoin as a group learning effort. In fact your thread has kinda of inspired me to create some kind of video addressing this very issue because I have seen this question or variations to this question come up before where people have had performance issues when dealing with several of the same type of bitmain products. They are frustrated why two or more of the exact same product do not operate the exact same way. I hope this help! This has been my experience as well! Title: Re: What frequency works best for Antminer S7? Post by: philipma1957 on December 05, 2015, 09:15:00 PM Honestly for me every miner is a little different. With the exception of the 2 batch 7's the firmware is on those factory installed and on one of them I left it at 625 MHz and it mined at the advertised 5TH, the second batch 7 at 625 was performing poorly and I was only getting around 3.8TH so I dropped the freq to 600 and then is jumped up to 5TH. The 19 others I have are batch 2 (which were advertised to run at 4.66TH at 575 TH), I flashed them with the most recent Bitmain firmware that supports the 600Mhz setting. When I had the time I found that really going through them slowly and taking my time tweaking with the frequency (and not always up) making small changes has made an incredible difference. For instance, I have some of mine set at 606MHz and some set 593Mhz. I do not think I have anything set over 625 but you can certainly try. Just make sure you are monitoring it closely when you make changes like that. I guess the whole point I am getting at is there is not perfect setting for every single miner out there. You can have rough guidelines that work for most but if you are trying to dial in your farm, then you need to play with the settings to see what works with your farm. Also keep in mind not all miners are going to perform at the highest Th rating possible. Some of my miners no matter what settings I have changed and close I think I have dialed it in, I have had to settle for 4.5Th when I should be getting 4.8 and that ok, its just the way it goes. If you are interested you can check out my mining set up here https://www.youtube.com/watch?v=K1C2LQnBr2Y (https://www.youtube.com/watch?v=K1C2LQnBr2Y) If you like it, subscribe as I am always adding new content and I love audience feedback. I look at bitcoin as a group learning effort. In fact your thread has kinda of inspired me to create some kind of video addressing this very issue because I have seen this question or variations to this question come up before where people have had performance issues when dealing with several of the same type of bitmain products. They are frustrated why two or more of the exact same product do not operate the exact same way. I hope this help! This has been my experience as well! I have some running at 631 without a hitch, and some won't go above 600 before the hashrate PLUMMETS and hardware is up in the 0.x% range. Most are good around 625 frequency, but I've had to fine tune each one to optimize it, and it doesn't appear to be heat or PSU related, it's completely luck of the draw. Hardware error seems to be a good indication, if they are very low (0.00xx%) you can try bumping frequency up one step at a time, and letting it normalize for a couple hours to see if it nets you better hashrate and minimal increases in HWE. I have 2x B1's & 5x B5's, and there's no rhyme or reason as to why some will only do 600 and some are up to 631 and 5+ TH/s (maximum I'm comfortable with for my environment). Lucky for me, the lowest one out of my units does 4.8 @ 600 frequency, and best one does 5.09 @ 631, most of them do around 5TH @ 625 frequency. this unit with a evga 1600 t2 does freq 600 with 0% my best one by far. and if I use the meanwell at 12.4 volts I can do much higher https://i.imgur.com/HBoZ8T2.png Title: Re: What frequency works best for Antminer S7? Post by: Dophoeve on December 06, 2015, 07:18:32 AM What is best settings for 3x 45 Asics is AntminerS7 batch 6.
The firmware from the website from Bitmain? Or which frequency? Thx in advance. Title: Re: What frequency works best for Antminer S7? Post by: RichBC on December 06, 2015, 07:27:10 AM What is best settings for 3x 45 Asics is AntminerS7 batch 6. The firmware from the website from Bitmain? Or which frequency? Thx in advance. There is no firmware for Batch 6 yet. Default frequency should be 600MHz. Rich Title: Re: What frequency works best for Antminer S7? Post by: Dophoeve on December 06, 2015, 12:32:54 PM What is best settings for 3x 45 Asics is AntminerS7 batch 6. The firmware from the website from Bitmain? Or which frequency? Thx in advance. There is no firmware for Batch 6 yet. Default frequency should be 600MHz. Rich Yes the default I know, which is 600MHz. But some hash at 687MHz, around 4.7 TH/s. While others only hash around 3 TH/s with this frequency. Some other experience with this? Title: Re: What frequency works best for Antminer S7? Post by: goxed on December 06, 2015, 04:18:10 PM Playing around with the clocks today. Efficiency is bit poor for a S7 though: Power@Wall=1600watts.
https://i.imgur.com/f2FUkvE.jpg Title: Re: What frequency works best for Antminer S7? Post by: Prelude on December 06, 2015, 04:41:22 PM I've been experimenting too.
https://i.imgur.com/B0g06wh.png I didn't measure at the wall yet, but I did measure DC power coming from the PSU. Each blade is burning 500w, so 1500w / 5770gh = 0.259w/gh at the PSU. What's being pulled at the wall will depend on the quality of your PSU, obviously. I don't see why you're saying efficiency is bad, it's incredibly good considering it's running almost 1TH/s faster than stock. To compare, stock 600MHz each blade pulls 412w. 1236w / 4860gh = 0.254w/gh at the PSU. I'm overvolting the S7. PSU is outputting 12.58v unloaded, 12.48v loaded. running 600MHz = 12.4v at the blade, 737 = 12.33v at the blade. I don't suggest anyone attempt this. It's definitely not good for the S7, and you risk killing it. Title: Re: What frequency works best for Antminer S7? Post by: philipma1957 on December 06, 2015, 05:16:31 PM Damn guys! Nice speeds! As for B6, I only have one running atm and I'm at 625 frequency with no drama. Newer batches of presumably the exact same miner are coming out at 700 MHz yeah like the s-3 the new batches run much higher freq. I am happy to have one really good one and one so so one since I was early batch. Once I get set with solar project I am hoping to run 20 kwatts worth of gear. Title: Re: What frequency works best for Antminer S7? Post by: goxed on December 06, 2015, 05:20:32 PM I've been experimenting too. You got nice OC there :) I didn't measure at the wall yet, but I did measure DC power coming from the PSU. Each blade is burning 500w, so 1500w / 5770gh = 0.259w/gh at the PSU. What's being pulled at the wall will depend on the quality of your PSU, obviously. I don't see why you're saying efficiency is bad, it's incredibly good considering it's running almost 1TH/s faster than stock. To compare, stock 600MHz each blade pulls 412w. 1236w / 4860gh = 0.254w/gh at the PSU. I'm overvolting the S7. PSU is outputting 12.58v unloaded, 12.48v loaded. running 600MHz = 12.4v at the blade, 737 = 12.33v at the blade. I don't suggest anyone attempt this. It's definitely not good for the S7, and you risk killing it. Ahh, I got 0.28W / GH @ wall. For some reason I thought the efficiency should be 0.25W / GH at wall. Title: Re: What frequency works best for Antminer S7? Post by: RichBC on December 06, 2015, 05:21:45 PM Damn guys! Nice speeds! As for B6, I only have one running atm and I'm at 625 frequency with no drama. Newer batches of presumably the exact same miner are coming out at 700 MHz Well that is the 1) There is no difference and batch 6 will run at 700MHz 2) They are selecting BM1385 and the Batch 8 ones are better than Batch 6 3) They have set the Buck Converter voltage higher in Batch 8 4) Somthing else. S7 continues to be more of a mystery than any of it's predecessors and I look forward to the Day when a 135 chip version can be taken apart and some pictures taken and measurements made. :) Rich Title: Re: What frequency works best for Antminer S7? Post by: Biodom on December 06, 2015, 05:36:01 PM Damn guys! Nice speeds! As for B6, I only have one running atm and I'm at 625 frequency with no drama. Newer batches of presumably the exact same miner are coming out at 700 MHz Well that is the 1) There is no difference and batch 6 will run at 700MHz Possible, but maybe with a lot of errors, but it does run at 650 (see below). 2) They are selecting BM1385 and the Batch 8 ones are better than Batch 6 Most likely small mods to boards or yours #3 3) They have set the Buck Converter voltage higher in Batch 8 Probably, but we won't know what is the error rate on B8 until it is here 4) Something else. S7 continues to be more of a mystery than any of it's predecessors and I look forward to the Day when a 135 chip version can be taken apart and some pictures taken and measurements made. :) Rich S7 batch 6 at 650 (at 600-0.0001% error) https://i.imgur.com/UxNtel0.png Title: Re: What frequency works best for Antminer S7? Post by: Biodom on December 06, 2015, 05:42:38 PM One interesting observation re S7 Batch 6.
After ~2-3 min of initial start and any hard reboot, suddenly there are a lot of XX appearing, but speed does not drop at all, remarkably. In a few seconds all XX are cleared and speed stays or increases slightly to reach the steady-state. I think that this shows the effect of the buck converter in action. EDIT: @Tupsu saw it on 11/30 Title: Re: What frequency works best for Antminer S7? Post by: Tupsu on December 06, 2015, 06:16:15 PM One interesting observation re S7 Batch 6. After ~2-3 min of initial start and any hard reboot, suddenly there are a lot of XX appearing, but speed does not drop at all, remarkably. In a few seconds all XX are cleared and speed stays or increases slightly to reach the steady-state. I think that this shows the effect of the buck converter in action. I wonder if others saw the same, but it is difficult to catch as it happens only at that time (2-3 min after hard restart). I wrote about this effect earlier. November 30, 2015, https://bitcointalk.org/index.php?topic=1165628.msg13113139#msg13113139 Title: Re: What frequency works best for Antminer S7? Post by: RichBC on December 06, 2015, 06:43:13 PM One interesting observation re S7 Batch 6. After ~2-3 min of initial start and any hard reboot, suddenly there are a lot of XX appearing, but speed does not drop at all, remarkably. In a few seconds all XX are cleared and speed stays or increases slightly to reach the steady-state. I think that this shows the effect of the buck converter in action. I wonder if others saw the same, but it is difficult to catch as it happens only at that time (2-3 min after hard restart). I wrote about this effect earlier. November 30, 2015, https://bitcointalk.org/index.php?topic=1165628.msg13113139#msg13113139 Very strange effect, and not one I have observed on an S5 or seen reported on the 162 chip S7? It is difficult to speculate on reasons, until we understand exactly what has changed in Batch 6/8. However... one fanciful reason could be that the firmware powers up with the Buck Converter set to a voltage, then if there are xx it ups it a bit? Rich Title: Re: What frequency works best for Antminer S7? Post by: blockchainmines on December 06, 2015, 07:45:43 PM Honestly for me every miner is a little different. With the exception of the 2 batch 7's the firmware is on those factory installed and on one of them I left it at 625 MHz and it mined at the advertised 5TH, the second batch 7 at 625 was performing poorly and I was only getting around 3.8TH so I dropped the freq to 600 and then is jumped up to 5TH. The 19 others I have are batch 2 (which were advertised to run at 4.66TH at 575 TH), I flashed them with the most recent Bitmain firmware that supports the 600Mhz setting. When I had the time I found that really going through them slowly and taking my time tweaking with the frequency (and not always up) making small changes has made an incredible difference. For instance, I have some of mine set at 606MHz and some set 593Mhz. I do not think I have anything set over 625 but you can certainly try. Just make sure you are monitoring it closely when you make changes like that. I guess the whole point I am getting at is there is not perfect setting for every single miner out there. You can have rough guidelines that work for most but if you are trying to dial in your farm, then you need to play with the settings to see what works with your farm. Also keep in mind not all miners are going to perform at the highest Th rating possible. Some of my miners no matter what settings I have changed and close I think I have dialed it in, I have had to settle for 4.5Th when I should be getting 4.8 and that ok, its just the way it goes. If you are interested you can check out my mining set up here Very interesting. I am a firm believer that all miners are different and benefit from monitoring and adjustment to get the best from them. I have a couple of questions? :) If I understand correctly your approach seems to be to find the frequency at which the best hash rate is achieved? When doing this do you also look at the HW error rate and do you find when the Hash Rate is lower than expected for a Frequency that the HW error rate is high or is the error rate still ok? Next have you considered that there could be a difference in your PSU's and that supply voltage that the miner has on the PCIe connectors could be different in some cases and that is influencing it's ability to hash at higher frequencies? If you are not monitoring the voltage I would urge you to include it in your adjustment protocol as it may well add another dimension and enable you to achieve higher hash rates? Rich These are all good points Rich Regarding the power supplies I stick with the same kind of power supplies up until just recently when I changed over to EVGA for my last 5 S7's. I don't really factor my power supply's voltage bouncing as a reason for the difference variations in miner performance. If I was have voltage problems then I would think my problems would be much bigger than what I have previously described. (which by the way I do not consider a problem) I would lean towards mass produced miners over high end power supplies but that is just me. Regarding HW errors, yes I do get them, we all get them and that is something that would take forever to watch over a long period of time. The truth is there are several things you can look at to monitor your minors. The most obviously thing that people look for is how fast can it hash. Now if I can get it hashing fast but the results are garbage and I am getting a lot of rejects, hw errors, etc then of course that is when I am going to dig deeper. I wasn't trying to go quite that in dept as the question was regarding frequency settings. I am pretty sure if you polled people on the forum they would all agree that not all minors behave the same and they doesn't mean we need to start to digging into power supplies/PCIe connections over a couple Ghs. However that is just my opinion, and please note I completely respect what you had to say it is just not something I would do if personally as my farm is running great. Some of my miners are over achievers and others are a little under achievers(very little) but overall I am averaging a happy 105TH. Thanks for your feedback. Title: Re: What frequency works best for Antminer S7? Post by: Dophoeve on December 14, 2015, 07:13:47 PM Hello,
I have a antminer S7 from B6. After a week of running, one hashboard got only 36 chips running instead of 45. Anyone experience with this? Can I resolve this or are the other chips broken / dead?? Thx Title: Re: What frequency works best for Antminer S7? Post by: Biodom on December 14, 2015, 09:01:22 PM Hello, I have a antminer S7 from B6. After a week of running, one hashboard got only 36 chips running instead of 45. Anyone experience with this? Can I resolve this or are the other chips broken / dead?? Thx five 1. go to pool settings and simply click on save and apply (one time I had the same and this simple procedure fixed it). 2. go to "advanced" in gui and simply click on save and apply. 3. #1 followed in 10-15 min by #2. 4. go to system, click on reboot 5. hard reboot (if you have access to PSU). I would do either #1 or #2 first, then see what happens and do another option. Title: Re: What frequency works best for Antminer S7? Post by: Dophoeve on December 15, 2015, 07:21:09 AM Hello, I have a antminer S7 from B6. After a week of running, one hashboard got only 36 chips running instead of 45. Anyone experience with this? Can I resolve this or are the other chips broken / dead?? Thx five 1. go to pool settings and simply click on save and apply (one time I had the same and this simple procedure fixed it). 2. go to "advanced" in gui and simply click on save and apply. 3. #1 followed in 10-15 min by #2. 4. go to system, click on reboot 5. hard reboot (if you have access to PSU). I would do either #1 or #2 first, then see what happens and do another option. #1-4 done already, but anyways thanks for the response! I was planning on doing a hard reboot this weekend when I have access. Hope that resolves the problem! Title: Re: What frequency works best for Antminer S7? Post by: Dophoeve on December 15, 2015, 08:03:36 PM Hello, I have a antminer S7 from B6. After a week of running, one hashboard got only 36 chips running instead of 45. Anyone experience with this? Can I resolve this or are the other chips broken / dead?? Thx five 1. go to pool settings and simply click on save and apply (one time I had the same and this simple procedure fixed it). 2. go to "advanced" in gui and simply click on save and apply. 3. #1 followed in 10-15 min by #2. 4. go to system, click on reboot 5. hard reboot (if you have access to PSU). I would do either #1 or #2 first, then see what happens and do another option. #1-4 done already, but anyways thanks for the response! I was planning on doing a hard reboot this weekend when I have access. Hope that resolves the problem! Hard reboot doesn't resolve this problem either, anyone any suggestions..? :-( Title: Re: What frequency works best for Antminer S7? Post by: zOU on May 17, 2016, 03:21:16 PM Hello,
I just received my batch 16 S7, and the default frequency was set at 700.... Are they all at this freq since batch 9 ? https://bitmaintech.com/bm_tech_admin_at_123/userfiles/image/F&H.jpg http://img.prntscr.com/img?url=https://i.imgur.com/RYydXSA.png Title: Re: What frequency works best for Antminer S7? Post by: RichBC on May 17, 2016, 05:52:39 PM Hello, I just received my batch 16 S7, and the default frequency was set at 700.... Are they all at this freq since batch 9 ? Yes everything since Batch 8 has been 700MHz. Rich Title: Re: What frequency works best for Antminer S7? Post by: zOU on May 17, 2016, 06:53:03 PM Thank you !
Title: Re: What frequency works best for Antminer S7? Post by: cucumi on June 10, 2016, 04:17:10 PM Hello, I just received my batch 16 S7, and the default frequency was set at 700.... Are they all at this freq since batch 9 ? Yes everything since Batch 8 has been 700MHz. Rich Rich, im using ANTMINER S7 BATCH 18. Frequency set to 625.00 from 700.00, and this result is normal? https://i.imgur.com/ycXB4gc.png Im worried about Fan Speed now, its up to 5760 and 4200. Is that normal? And may i know why my pool no 3 status is dead. Thanks. Title: Re: What frequency works best for Antminer S7? Post by: delicin33 on June 10, 2016, 04:25:44 PM Hello, I just received my batch 16 S7, and the default frequency was set at 700.... Are they all at this freq since batch 9 ? Yes everything since Batch 8 has been 700MHz. Rich Rich, im using ANTMINER S7 BATCH 18. Frequency set to 625.00 from 700.00, and this result is normal? https://i.imgur.com/ycXB4gc.png Im worried about Fan Speed now, its up to 5760 and 4200. Is that normal? And may i know why my pool no 3 status is dead. Thanks. is normal, the fan full speed run at 5880 rpm...and your miner temp is good and should work perfect under stock frequency. Title: Re: What frequency works best for Antminer S7? Post by: zOU on June 10, 2016, 06:15:46 PM My S7-F1 is working very nicely at 700 with the may 23rd FW :)
Title: Re: What frequency works best for Antminer S7? Post by: cucumi on June 10, 2016, 09:29:03 PM Hello, I just received my batch 16 S7, and the default frequency was set at 700.... Are they all at this freq since batch 9 ? Yes everything since Batch 8 has been 700MHz. Rich Rich, im using ANTMINER S7 BATCH 18. Frequency set to 625.00 from 700.00, and this result is normal? https://i.imgur.com/ycXB4gc.png Im worried about Fan Speed now, its up to 5760 and 4200. Is that normal? And may i know why my pool no 3 status is dead. Thanks. is normal, the fan full speed run at 5880 rpm...and your miner temp is good and should work perfect under stock frequency. Hye, thanks for the info :) Can i increase the frequency? The default frequency before is 700.00. In the same time is ok if im set the fan speed limit to 85%? Thanks guys! Title: Re: What frequency works best for Antminer S7? Post by: JaredKaragen on June 11, 2016, 12:57:21 AM After reading for months, and confirming in this thread; I am now confident that I have a batch 6 S7.
I run it all over the board freq wise. Power supply is a re-wired Coolmax 1600. It has 160A of 12v capability when you utilize 50A of 12v wires inside that are not leading to the PCIE modular ports from the factory. Exhaust ducted to the outside. Just a little while ago I set it to 500Mhz and 30% fan speed. ~69-70* and hashing at 3.32Th average after 21 min. Typically I have it at 600 and 55% fan speed. Averaging 4.02Th.... ~50* temp and varies on ambient temp. I have also upped the clock to 700, and fan speeds on max. Ran 4.7Th average. Average temp was ~58-64*. Power supply liked to warm up pretty good on that run. Hashed it for 4 days solid with no issues. After some long runs Ill take screenshots and share. Title: Re: What frequency works best for Antminer S7? Post by: delicin33 on June 11, 2016, 03:59:35 AM is normal, the fan full speed run at 5880 rpm...and your miner temp is good and should work perfect under stock frequency. Hye, thanks for the info :) Can i increase the frequency? The default frequency before is 700.00. In the same time is ok if im set the fan speed limit to 85%? Thanks guys! My S7-F1, added 2nd fan, running @700mhz with fan speed set to 95%, it hash 4.7ths avg @66'c -69'c with the room temp. @32'c https://i.imgur.com/1gyoeS8.jpg Title: Re: What frequency works best for Antminer S7? Post by: JaredKaragen on June 12, 2016, 12:11:03 AM Batch 6, 32% fan speed
http://i26.photobucket.com/albums/c115/JaredKaragen/Mobile%20Uploads/Screenshot%2080_zpsqeo8ec86.jpg Title: Re: What frequency works best for Antminer S7? Post by: JDANIELBTC on July 22, 2016, 04:44:51 AM Hello Mr. with that configuration, how many BTC they paid per day?
is normal, the fan full speed run at 5880 rpm...and your miner temp is good and should work perfect under stock frequency. Hye, thanks for the info :) Can i increase the frequency? The default frequency before is 700.00. In the same time is ok if im set the fan speed limit to 85%? Thanks guys! My S7-F1, added 2nd fan, running @700mhz with fan speed set to 95%, it hash 4.7ths avg @66'c -69'c with the room temp. @32'c https://i.imgur.com/1gyoeS8.jpg Hello Mr. with that configuration, how many BTC they paid per day? Title: Re: What frequency works best for Antminer S7? Post by: delicin33 on July 23, 2016, 04:48:19 PM Hello Mr. with that configuration, how many BTC they paid per day? Hello Mr. with that configuration, how many BTC they paid per day? Daily +- BTC0.00566026 or $3.73 for one unit of S7 @ 4730Ghs, barely enough to pay for the electricity bil ::) http://www.coinwarz.com/calculators/bitcoin-mining-calculator/?h=4730.00&p=2600.00&pc=0.00&pf=0.09&d=213492501107.51300000&r=12.70000000&er=659.27180000&hc=0.00 Title: Re: What frequency works best for Antminer S7? Post by: ComputerGenie on July 26, 2016, 07:41:42 PM Daily +- BTC0.00566026 or $3.73 for one unit of S7 @ 4730Ghs, barely enough to pay for the electricity bil ::) http://www.coinwarz.com/calculators/bitcoin-mining-calculator/?h=4730.00&p=2600.00&pc=0.00&pf=0.09&d=213492501107.51300000&r=12.70000000&er=659.27180000&hc=0.00 The cost could have something to do with whatever you're doing to make 1 S7 use 2600 watts ??? Title: Re: What frequency works best for Antminer S7? Post by: bitsauron on November 16, 2016, 01:51:25 PM this is my configuration S7 B18
i got 3 S7 same batch..all same configuration https://postimg.org/image/p2o65jlj5/ Title: Re: What frequency works best for Antminer S7? Post by: fanatic26 on November 16, 2016, 11:47:42 PM Those are some really good temps considering the overclock. Have you checked power draw to see where the efficiency sits? The later batches are not as efficient (unmodded of course) as the original 54 chip boards were.
Title: Re: What frequency works best for Antminer S7? Post by: zOU on November 17, 2016, 06:53:21 AM Daily +- BTC0.00566026 or $3.73 for one unit of S7 @ 4730Ghs, barely enough to pay for the electricity bil ::) http://www.coinwarz.com/calculators/bitcoin-mining-calculator/?h=4730.00&p=2600.00&pc=0.00&pf=0.09&d=213492501107.51300000&r=12.70000000&er=659.27180000&hc=0.00 The cost could have something to do with whatever you're doing to make 1 S7 use 2600 watts ??? so 2600W@110V ? Title: Re: What frequency works best for Antminer S7? Post by: sidehack on November 17, 2016, 07:25:32 AM Only if physics is broken, or that's the world's most inefficient power supply for some reason. The DC power consumed by the device will be the same regardless what the input voltage to the DC power supply is; the only way the power consumed would change is if the PSU runs at a different efficiency at a different input voltage, and that's rarely more than about 2% difference.
One S7 using 2600W would burst into flames in a matter of seconds. Title: Re: What frequency works best for Antminer S7? Post by: zOU on November 17, 2016, 07:56:07 AM Right always 1300W.
Amp is X2 at 110V. |
