dog1965
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December 27, 2014, 09:52:31 PM |
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![](https://ip.bitcointalk.org/?u=http%3A%2F%2Fs15.postimg.org%2Firqdy70m3%2FBuck_Voltage_converter.jpg&t=665&c=4gMdvhpQ0sxHlg) Hmmm, This circuit is on the hash board on Bitmains miners it steps down and also regulates the voltage for the bm1382 chip. It was designed to dissipate less heat then the OLD 7805 regulator which I like Much better. This is a Dirty circuit with a couple of capacitors and resistors on the front and back of the hash board. Circuits like this have to be built with more components than that just look at a new pc motherboards!!! same circuits a lot more to it more advanced works like it should. Bitmain should have used a variable voltage regulator like the 7805 voltage regulator only variable this would have been more stable less hash rate drops!!!! Every time your hash rate drops look at the kilowatt AC power meter is drops as well. I think it is because of the CHEAP BUCK CIRCUIT bitmain uses. If this circuit is not stable your power from the wall will drop along with your hash rate. Foolish sarcastic childish comments not needed. Only sensible ones!!!!
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soy
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Activity: 1428
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December 28, 2014, 01:03:40 AM |
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Hmmm, I have a 1300 SUPERNOVA G2 Running two aintminer S3's My electric service to my house is 120v 50 amp "MAIN BREAKER" My miners are on a 20 amp sub breaker by itself. I really need 100 amp service I Don't think Adequate Power is coming from the wall that's why this happens. I took them to my cousins house he has 100 amp 220v service I can oc them to 524 "262" and they work fine.
Have you tried on a different outlet not connected to the dedicated breaker? Somewhere else in the house Yes Same issue. I use cheap power supplies the output of which vary with line voltage fluctuations. When the summer heat abated and AC's were shut down in the evening, my AC would jump to 125VAC or more and my one of my miner's power supplies would go over 13vdc causing a shutdown. The cheap power supplies have an output adjustment. Lowering the voltage the miner was back up and running. The next day was hot and AC's went back on in the neighborhood. The AC went back to 120-122VAC. The adjusted power supplies output dropped and the miner shut down for low voltage. I readjusted and all was well. For a lark, I'd suggest measuring your power supply output at home while the miner is running then again at your friend's home. I note these cheap supplies aren't a good choice. When the AC voltage rose a metal oxide varistor on the input voltage of one supply burned up. No way to compensate for that kind of failure as the MOV sees the incoming voltage. Also, another supply saw the bridge burn up. So, I now add heatsinks to all the supplies bridge diodes. Finally, I change out the 1 turn mismarked trim pot for a 25 turn so as to get the voltages as even as possible before applying a load. I want the supplies at the 50% load so I need two per S3. I also add a 6 amp line filter to the AC input. ![](https://ip.bitcointalk.org/?u=http%3A%2F%2Fs29.postimg.org%2Fdxqlgw8fb%2Fline_conditioner.jpg&t=665&c=9gZtssUdb0uL4A) I use a line conditioner ON the AC input of the PSU then plug line conditioner into wall outlet. This should help your case because it keeps your ac voltage constant when it goes to high or to low. Back in the early '80's I was an engineering aide with North Hills Electronics. There were two products lines with which I was tasked. An uninterruptable power supply in prototype development and line conditioners which were an existing product line of various sizes. The line conditioners at their most simple were multi-output transformers with circuitry to shift between outputs to maintain the line out in a best window.
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soy
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Activity: 1428
Merit: 1013
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December 28, 2014, 06:18:37 PM |
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Hmmm, I have a 1300 SUPERNOVA G2 Running two aintminer S3's My electric service to my house is 120v 50 amp "MAIN BREAKER" My miners are on a 20 amp sub breaker by itself. I really need 100 amp service I Don't think Adequate Power is coming from the wall that's why this happens. I took them to my cousins house he has 100 amp 220v service I can oc them to 524 "262" and they work fine.
Have you tried on a different outlet not connected to the dedicated breaker? Somewhere else in the house Yes Same issue. I use cheap power supplies the output of which vary with line voltage fluctuations. When the summer heat abated and AC's were shut down in the evening, my AC would jump to 125VAC or more and my one of my miner's power supplies would go over 13vdc causing a shutdown. The cheap power supplies have an output adjustment. Lowering the voltage the miner was back up and running. The next day was hot and AC's went back on in the neighborhood. The AC went back to 120-122VAC. The adjusted power supplies output dropped and the miner shut down for low voltage. I readjusted and all was well. For a lark, I'd suggest measuring your power supply output at home while the miner is running then again at your friend's home. I note these cheap supplies aren't a good choice. When the AC voltage rose a metal oxide varistor on the input voltage of one supply burned up. No way to compensate for that kind of failure as the MOV sees the incoming voltage. Also, another supply saw the bridge burn up. So, I now add heatsinks to all the supplies bridge diodes. Finally, I change out the 1 turn mismarked trim pot for a 25 turn so as to get the voltages as even as possible before applying a load. I want the supplies at the 50% load so I need two per S3. I also add a 6 amp line filter to the AC input. Not all the supplies had the 1 turn trimpot swapped for a 25 turn. I took the time to change out some today. I found another supply with a damaged MOV but besides the MOV having a major crack, and fortunately I had purchased a number when end of summer one went completely bad as neighborhood AC shut down, there was a blown 35v cap. Having a dead unit for parts came in handy as I didn't have that value on hand otherwise. I knew the adjusted voltage output rose and fell with AC rise and fall, I just didn't expect that an internal voltage limit expectation would be violated. That or it was just a cheap cap that blew when stressed with a higher than normal voltage. Interestingly the S3 was running okay even tho that cap had been blown.
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dog1965
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December 29, 2014, 12:58:24 AM |
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windpath
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Activity: 1258
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December 29, 2014, 03:04:01 AM |
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You already know the solution for true P2Pool....
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dogie
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Activity: 1666
Merit: 1185
dogiecoin.com
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December 29, 2014, 06:39:47 AM |
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Anybody use BITMAIN's ANTPOOL site if so my workers keep popping in and out when I use the P2P link but not the solo link can anyone help. I like P2P better ?
I've had no problems with the solo side, but have not tried the P2P side.
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1Neptune
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December 29, 2014, 06:40:42 AM |
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Just wondering, since these things run on 12v, has anyone tried running an S1 or S3 using a car battery?
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dog1965
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![](https://bitcointalk.org/Themes/custom1/images/post/xx.gif) |
December 29, 2014, 07:39:08 AM |
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Can someone please explain what this means and should I disable it in DHCP and DNS selection ?
DNS rebinding protection is active, will discard upstream RFC1918 responses!
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dogie
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dogiecoin.com
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December 29, 2014, 07:47:07 AM |
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Just wondering, since these things run on 12v, has anyone tried running an S1 or S3 using a car battery?
Why? At best you'll get a few hours of a decent one and a battery will typically drop voltage as it discharges. Both of those don't really make them appropriate for mining with.
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sbogovac
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I don't believe in denial.
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December 29, 2014, 08:38:09 AM |
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Just wondering, since these things run on 12v, has anyone tried running an S1 or S3 using a car battery?
Why? At best you'll get a few hours of a decent one and a battery will typically drop voltage as it discharges. Both of those don't really make them appropriate for mining with. Maybe to run it of an old disel engine running on some cheap (disgarded/cooking/frying?) oil... ![Huh](https://bitcointalk.org/Smileys/default/huh.gif)
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0x7442A5c37E513D335F53843cD20c00F77eAC7867
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1Neptune
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![](https://bitcointalk.org/Themes/custom1/images/post/xx.gif) |
December 29, 2014, 09:32:45 AM |
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Just wondering, since these things run on 12v, has anyone tried running an S1 or S3 using a car battery?
Why? At best you'll get a few hours of a decent one and a battery will typically drop voltage as it discharges. Both of those don't really make them appropriate for mining with. Maybe to run it of an old disel engine running on some cheap (disgarded/cooking/frying?) oil... ![Huh](https://bitcointalk.org/Smileys/default/huh.gif) The idea originated as an off the cuff semi-technical discussion around could you, then very quickly turned to should you. Could, yes. Should, no. For the reasons dogie cited, of course. Where's a functioning water mill with 12v generator attached to provide extremely cheap energy to run miners when you need one? Answer: Not around here. ![Sad](https://bitcointalk.org/Smileys/default/sad.gif)
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dbm74
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December 29, 2014, 09:39:39 AM |
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i have 26 s3's and my s3' were crashing many times a day thy were working good and then crash down to 40 gh/s i have been working on this problem for a month and finely fixed them. if you had flashed bitmains last firmware December that's the problem and reset wont work and if you flash back to earlier program it crashes the miner and is un bootable. i am willing to enplane step by step how to recover the unbootable miner and flash crashing miners back to good firmware with success. bitmain is making tones of btc telling people the control boards are bad just like thy told me and i fixed it. it took me three hrs to set up and figure it out and now that im setup it only takes 15 minuts to fix a crashed s3's. if you want the help i can give it and in return it would be nice to get a btc donation for saving you tons of time and money
Well like i said i fixed the firmware on the dead one that crashed from bad firmware with ttfp server program threw serial converter wiping the program and re installing new firmware.
i still had quite a few running with the bad firmware on them, so after bench testing 1 a few times i found out how to take the program back without crashing the miner. i successfully took all the others with bad firmware back to the first s3+ firmware!
The trick to go back from the bad firmware is to first make sure your at the stock clock speed then reboot then go to flash firmware (un check Save settings)!! then load the proper file then complete flash.
If you don't set stock clock and uncheck save settings it will not recover from the flash.
Once it reboots you can get the next 2 firmware updates in order one at a time don't skip an update each update must be flashed. this will take it back to ip .99 and then you set your mining and save , then pick your clock speed and save, then go to networks change your ip to what you want and save, then when all is done reboot the miner.
for s3 flash all 3 one at a time tell you get done. make sure you uncheck the save settings box before each flash or it will crash antMiner_S320140711.bin antMiner_S320140721.bin antMiner_S320140811.bin if you want the s3+ program on your s3 keep going down the list s3+ flash all 3 one at a time tell you get done. make sure you uncheck the save settings box before each flash or it will crash antMiner_S320140826.bin antMiner_S320141013.bin antMiner_S320141024.bin for good firmware stop at the first one 0826 or the third one 1024 if you stop at 1013 you will have problems but you still need to flash it to get to the 1024 program.
if you still have the December program on it it is probably is going crazy! to flash back don't forget to uncheck the save settings box or it may not be rotatable
then all will be good!!!!!!!!!!!! please donate me some btc if this helped you out saving you tons of time and money!! 1P3WnGzCgWD9tFYrBKHReP1VoqRFF4fEXB
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dogie
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Activity: 1666
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dogiecoin.com
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December 29, 2014, 09:40:44 AM |
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Just wondering, since these things run on 12v, has anyone tried running an S1 or S3 using a car battery?
Why? At best you'll get a few hours of a decent one and a battery will typically drop voltage as it discharges. Both of those don't really make them appropriate for mining with. Maybe to run it of an old disel engine running on some cheap (disgarded/cooking/frying?) oil... ![Huh](https://bitcointalk.org/Smileys/default/huh.gif) The idea originated as an off the cuff semi-technical discussion around could you, then very quickly turned to should you. Could, yes. Should, no. For the reasons dogie cited, of course. Where's a functioning water mill with 12v generator attached to provide extremely cheap energy to run miners when you need one? Answer: Not around here. ![Sad](https://bitcointalk.org/Smileys/default/sad.gif) I would probably say couldn't for quite a period of the battery's discharge cycle. I'm not sure at exactly what voltage the S3 stops being able to hash but at something like 8, 9, 10V its not going to be happy at all.
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smilingloki
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December 29, 2014, 03:58:12 PM |
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i have 26 s3's and my s3' were crashing many times a day
You poor b**tard!! I feel so sorry for you, got rid of my 18 and got Spondoolies SP-35's - so nice not to have to monitor them every hour!
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jackbox
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December 29, 2014, 06:50:38 PM |
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I have about 25 miners, a mix of S3's and S3+. I have about 4 of them totally down right now. The warranty is not that long either, so if you are thinking of getting S3 or S3+ and not working many hours to keep them up and running, you better think again. I regret buying the S3+ now, I got about 25% DOA rate. It's next to no quality control, so I don't think the S5 is going to be any different. Very sloppy workmanship, shorts, faulty firmware, bad solder joints. Much to look forward to...
I feel lucky now. Got only two S3+ and both working as advertised. Sorry to hear about your high DOA rate. Bitmain service is very poor.
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MyRig
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support@myrig.com
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December 29, 2014, 07:34:00 PM |
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System Log please but if you think it is defective, please DO NOT DELAY RMA process... USA Domestic RMA goes very fast. Please include Bitmaintech.com Order Confirmation with your returning units. Please advise, this is my best S3+ out of the batch and it doesn't work. ![](https://ip.bitcointalk.org/?u=http%3A%2F%2Fi1318.photobucket.com%2Falbums%2Ft656%2Fparkstreet1234%2F444_zps9fc0b482.png&t=665&c=xJt510RrGDsVBg)
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Antminer & DragonMint Repair E-mail: support@myrig.com T: @MyRig_com Return Address: MyRig 3700 Quebec Street, Unit 100-239, Denver, Colorado 80207, USA
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aarons6
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December 30, 2014, 03:47:46 AM |
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i kinda tested this out and i think its just the ui that is messed up.. the pool is still reporting a regular speed.
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Darthswan
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December 30, 2014, 05:21:58 AM |
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I saw a new firmware. Any news about it?
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bitsolutions
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![](https://bitcointalk.org/Themes/custom1/images/post/xx.gif) |
December 30, 2014, 09:17:41 AM |
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I saw a new firmware. Any news about it?
Should have the bugs fixed, its the same as the beta firmware that's been in testing for the last few days.
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Mining Software Developer.
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marvykkio
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December 30, 2014, 09:55:16 AM |
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I have updated to the latest firmware that of 19/12/2014 I can tell you that for me, nothing has changed, hardware errors still exist, and I wrapped my off miners without understanding why, yet my psu and a 1500 watt ![Cry](https://bitcointalk.org/Smileys/default/cry.gif)
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