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Title: I used RX 480 and got only 24MB/s rate Post by: pornluver on March 24, 2017, 11:44:46 AM Whattomine.com says I should be getting 29MB/s rate.
Some says they can get 30MB/s rate. What did I do wrong? Title: Re: I used RX 480 and got only 24MB/s rate Post by: batko on March 24, 2017, 11:54:56 AM you need moded bios for 30+mhs
Title: Re: I used RX 480 and got only 24MB/s rate Post by: philipma1957 on March 24, 2017, 12:06:44 PM with msi afterburner some rx 480's with 8gb will do 29-30mh for eth
and smOS which I use is good All my rx 480's 8gb do 26.1 - 26.2 or so with lower power settings. each rig has 2 cards if I did 1100 2222 6 vs 999 2222 0 I would get up to 28-29 but hotter and more power see below https://i.imgur.com/0a4mQZb.png Title: Re: I used RX 480 and got only 24MB/s rate Post by: Ambros on March 24, 2017, 12:09:42 PM Whattomine.com says I should be getting 29MB/s rate. Some says they can get 30MB/s rate. What did I do wrong? If you wanna reach 30MHash you should lower your timings and edit bios. Without doing that you can overclock a little bit the memory and obtain better results like 28Mhash. You can do it with MSI afterburner or Wattool on windows, otherwise you can also simpleminingOS that integrates an oC tool Title: Re: I used RX 480 and got only 24MB/s rate Post by: pornluver on March 24, 2017, 12:14:15 PM Can I do it with wattman?
This article says I need to turn clock memory to 9 GHz. However, it doesn't tell me how Quote Moving to overclocking, the only thing we need to do is increase the video memory to the maximum and in this case this means 9 GHz (the card might be able to handle more, but the overclocking software or the driver is apparently capped at 9 GHz max). With the video memory at 9 GHz the RX 480 is capable of delivering about 28 MHS hashrate for mining Ethereum. It is highly possible that even higher hashrate could be achieved if you manage to get past the 9 GHz limit for the video memory, but for the moment AMD’s WattMan software or the Asus tool that we used do not currently allow for more. With the memory overclocked the power usage is increased with just about 7-8 Watt at the wall, so definitely worth overclocking it for mining Ethereum. We were a bit disappointed by the lack of overclockability headroom of the GPU that was able to get just about 1340 MHz with the stock voltage. Of course no point in overclocking it for Ethereum mining, in fact you might want to actually downclock it to get better power efficiency if mining only Ethereum. http://cryptomining-blog.com/8033-testing-the-amd-radeon-rx-480-for-ethereum-mining/ Title: Re: I used RX 480 and got only 24MB/s rate Post by: Eyedol-X on March 24, 2017, 12:52:14 PM Can I do it with wattman? This article says I need to turn clock memory to 9 GHz. However, it doesn't tell me how Quote Moving to overclocking, the only thing we need to do is increase the video memory to the maximum and in this case this means 9 GHz (the card might be able to handle more, but the overclocking software or the driver is apparently capped at 9 GHz max). With the video memory at 9 GHz the RX 480 is capable of delivering about 28 MHS hashrate for mining Ethereum. It is highly possible that even higher hashrate could be achieved if you manage to get past the 9 GHz limit for the video memory, but for the moment AMD’s WattMan software or the Asus tool that we used do not currently allow for more. With the memory overclocked the power usage is increased with just about 7-8 Watt at the wall, so definitely worth overclocking it for mining Ethereum. We were a bit disappointed by the lack of overclockability headroom of the GPU that was able to get just about 1340 MHz with the stock voltage. Of course no point in overclocking it for Ethereum mining, in fact you might want to actually downclock it to get better power efficiency if mining only Ethereum. http://cryptomining-blog.com/8033-testing-the-amd-radeon-rx-480-for-ethereum-mining/ 2 things are required to achieve ~30mh on an RX480
If you OC the memory to 2150mhz without editing the timings you'll get yourself about 26-28MH If you OC the memory to 2250mhz (9000 effective) you'll be able to achieve close to the same thing but many cards will not OC the memory this high. It's better/safer to go with a lower clock speed and tighter memory timings in bios. It uses less power as well. In Summary, You need to mod the bios, have someone mod your bios or find someone who has already modded the bios on the exact card that you have and is making it available for download. Title: Re: I used RX 480 and got only 24MB/s rate Post by: Raja_MBZ on March 24, 2017, 12:58:51 PM You'll need to overclock a lot for 30 MH/s. But 28 MH/s, that is achievable easily by even Claymore miner's integrated overclocking options. You're using his miner, right? If so, check out the FAQ document.
However, if you pay for your electricity, personally I'd prefer stable 26.5 MH/s with undervolting. Title: Re: I used RX 480 and got only 24MB/s rate Post by: pornluver on March 24, 2017, 01:08:25 PM I am in trouble here. It seems that I can overclock memory and tell my fan to go 100%. Temperature drops from 84 degree celcius to 70 degree celcius.
I tried to overclock the whole card with msi afterburner and now the computer don't run anymore. The PSU already blow up once. So maybe the card is already slightly problematic. But now it won't run anymore I have no idea what to do. To turn the system back to the way it used to be I would need to you know, run that msi afterburner. For that to work I need the computer to run. It doesn't. I think I did overclock the memory to 2250mhz (9000 effective) . What do you mean by 2250 is 9000 effective? It does hit 28 MH/s. Good enough for me. Title: Re: I used RX 480 and got only 24MB/s rate Post by: Ambros on March 24, 2017, 01:12:15 PM I am in trouble here. It seems that I can overclock memory and tell my fan to go 100%. Temperature drops from 84 degree celcius to 70 degree celcius. I tried to overclock the whole card with msi afterburner and now the computer don't run anymore. The PSU already blow up once. So maybe the card is already slightly problematic. But now it won't run anymore I have no idea what to do. To turn the system back to the way it used to be I would need to you know, run that msi afterburner. For that to work I need the computer to run. It doesn't. I think I did overclock the memory to 2250mhz (9000 effective) . What do you mean by 2250 is 9000 effective? It does hit 28 MH/s. Good enough for me. Effective memory rate is frequency*4.. But it's not really important. Afterburn configurations gets erased after every reboot, so this is not the problem Title: Re: I used RX 480 and got only 24MB/s rate Post by: pornluver on March 26, 2017, 12:58:28 AM So I should increase memory clock memory and then update bios. How do I update bios?
https://bitcointalk.org/index.php?topic=1584617.new#new This looks very interesting. Lower power consumption and yet higher hash rate. There's a bunch of .rom files. I do not know which one to use. Title: Re: I used RX 480 and got only 24MB/s rate Post by: xxcsu on March 26, 2017, 05:44:05 AM So I should increase memory clock memory and then update bios. How do I update bios? https://bitcointalk.org/index.php?topic=1584617.new#new This looks very interesting. Lower power consumption and yet higher hash rate. There's a bunch of .rom files. I do not know which one to use. you need to use a modded bios with the exact bios version number what you have on your card. If you start flashing random downloaded bioses , you going to brick your card . warranty not covering the modded bios failure :) Title: Re: I used RX 480 and got only 24MB/s rate Post by: Raja_MBZ on March 26, 2017, 08:51:17 AM So I should increase memory clock memory and then update bios. How do I update bios? https://bitcointalk.org/index.php?topic=1584617.new#new This looks very interesting. Lower power consumption and yet higher hash rate. There's a bunch of .rom files. I do not know which one to use. ...if you find it difficult, try out only the Claymore's miner overclocking. Set -mclock and -cclock at the command line. Title: Re: I used RX 480 and got only 24MB/s rate Post by: dagarair on March 26, 2017, 10:56:55 AM if you are confused DON'T DO IT. You might have a nice doorstop.
Title: Re: I used RX 480 and got only 24MB/s rate Post by: pornluver on March 27, 2017, 04:33:25 PM I overclocked my memory clock.
I got 27.8 MH/s and everything is stable. However, I can no longer run nicehash miner. Basically the system always crash everytime I tried other algorithm. I have no idea whether this will cause any permanent damage to my card, motherboard or anything. It seems that overclocking is not a good idea if I wanna do multi algo switching. I got to do ethash all the way. Am I correct here? What about custom rom? Do all RX 480 have the same custom rom or do I need to search for exact one that match my card? How do I know the exact type of RX 480 for my card? Title: Re: I used RX 480 and got only 24MB/s rate Post by: pbuva on March 27, 2017, 04:41:57 PM I overclocked my memory clock. What clocks you set?I got 27.8 MH/s and everything is stable. Basically the system always crash everytime I tried other algorithm. Nicehashminer is is basically a errors generator, many algos ended with to BSOD.Title: Re: I used RX 480 and got only 24MB/s rate Post by: pornluver on April 01, 2017, 07:30:34 AM So I should increase memory clock memory and then update bios. How do I update bios? https://bitcointalk.org/index.php?topic=1584617.new#new This looks very interesting. Lower power consumption and yet higher hash rate. There's a bunch of .rom files. I do not know which one to use. you need to use a modded bios with the exact bios version number what you have on your card. If you start flashing random downloaded bioses , you going to brick your card . warranty not covering the modded bios failure :) How do I get the exact bios version number of the one currently on my card? Title: Re: I used RX 480 and got only 24MB/s rate Post by: bijot01 on April 01, 2017, 09:46:25 AM use modding bios
you can go 30-34mh/s for 120w/ card (72w for cpu 45w for memory) Title: Re: I used RX 480 and got only 24MB/s rate Post by: pornluver on April 02, 2017, 07:19:09 AM use modding bios you can go 30-34mh/s for 120w/ card (72w for cpu 45w for memory) What is modding bios? How do I know that a bios will match my card? Is there a serial number or something? Title: Re: I used RX 480 and got only 24MB/s rate Post by: bijot01 on April 04, 2017, 07:45:17 AM ...just try one thing : search rx480 mod bios eth on google maybe .......!!!!!!!?????
Title: Re: I used RX 480 and got only 24MB/s rate Post by: pornluver on April 04, 2017, 07:46:13 PM ...just try one thing : search rx480 mod bios eth on google maybe .......!!!!!!!????? Obviously I've tried that and brick my card. After unbrick it I realize that many of those mod bios are not compatible with my card. The question is, what should I match to ensure that the bios match my card before I flash a new bios. Have you tried? In fact, I went one step further. I check my current bios and I saw a number https://www.techpowerup.com/vgabios/?did=1002-67DF-174B-E347 1002 is vendor id 67DF is device id 174b is sub vendor id e347 is vendor id Guess what? BIOS with that exact same number will brick the card. Title: Re: I used RX 480 and got only 24MB/s rate Post by: thespycry on April 04, 2017, 09:44:52 PM I have a Sapphire RX 480 8GB Nitro + OC which runs at 1342 MHz (boost speed)
I copied the bios and edited the memory straps 1750 -> 2000. With that I am getting about 28.1 MH/s (instead of 24) The thing is, if I increase the memory speed to 2250 Mhz (or lower the core as well), that has no effect and the speed stays at 28 MH/s. really weird.. This happens on all of the cards I own.. Any ideas ? Title: Re: I used RX 480 and got only 24MB/s rate Post by: xTommYx on April 05, 2017, 03:21:00 AM I am sure you have samsung memory cards.
There is this guy who runs memory at 2080 and core at 1125 or 1150 with 910mV and gets 29.3+ on these cards you have. You need to find optimal settings. It's not just one or two parameters. And ofcourse his mod is good for eth only, crashes bSod on dual if you try to increase memory a bit more. Title: Re: I used RX 480 and got only 24MB/s rate Post by: bijot01 on April 05, 2017, 08:10:07 AM dude there is many post on this
to know your memory use gpu-z end check if you have hynix elpidia or samsung ram that's all after you take the rom for your memory Title: Re: I used RX 480 and got only 24MB/s rate Post by: Qazo on April 05, 2017, 10:23:01 AM I have samsung memory on mine
http://gpuz.techpowerup.com/17/04/05/ea4.png can you please help me with flashing bios, never done this before, some good tutorial? tnx Title: Re: I used RX 480 and got only 24MB/s rate Post by: bijot01 on April 05, 2017, 01:18:52 PM get polaris bios editor, take your original rom with ati flash, save it.
Open it with polaris and strap the timing memory 1725 to 2000Mhz (you copy the value of the 1725 timing ram on each line to 2000mhz sry for my english ^^ ) and flash your card with the new bios Title: Re: I used RX 480 and got only 24MB/s rate Post by: Ambros on April 05, 2017, 05:04:46 PM get polaris bios editor, take your original rom with ati flash, save it. Open it with polaris and strap the timing memory 1725 to 2000Mhz (you copy the value of the 1725 timing ram on each line to 2000mhz sry for my english ^^ ) and flash your card with the new bios https://www.youtube.com/watch?v=lhQ1SyydKso Title: Re: I used RX 480 and got only 24MB/s rate Post by: Qazo on April 05, 2017, 05:21:44 PM nice thank you, this should be easy task to do... Will report results after I done it on weekend
Title: Re: I used RX 480 and got only 24MB/s rate Post by: Ambros on April 05, 2017, 10:07:54 PM nice thank you, this should be easy task to do... Will report results after I done it on weekend Remember to back up the original BIOS before than flashing anything! You can find some BIOS online, but it's still better to have a copy of your own Title: Re: I used RX 480 and got only 24MB/s rate Post by: Greedful on April 07, 2017, 12:57:04 PM Flashing an RX 480 with custom bios on dual mining ETH PASC improve hashrate ?
Title: Re: I used RX 480 and got only 24MB/s rate Post by: Qazo on April 08, 2017, 09:14:52 AM awesome, only replaced 2000 straps with 1750, i'm getting 2-3 mh/s more per card when dual mining DCR, temperatures also much better
settings: 5x480 nitro OC+ core 1100 , 1000mv memory 2100, 1000mv -dcri 35 eth - 135 mhs / dcr-4700 mhs 980w from wall - this is little bit to much because i have Corsair RM1000x which settings should I change to get lower energy consumption from wall? Title: Re: I used RX 480 and got only 24MB/s rate Post by: pornluver on April 08, 2017, 12:01:25 PM I have a Sapphire RX 480 8GB Nitro + OC which runs at 1342 MHz (boost speed) I copied the bios and edited the memory straps 1750 -> 2000. With that I am getting about 28.1 MH/s (instead of 24) The thing is, if I increase the memory speed to 2250 Mhz (or lower the core as well), that has no effect and the speed stays at 28 MH/s. really weird.. This happens on all of the cards I own.. Any ideas ? You got to update the bios Dowload polaris editor and atiwinflash Then make sure you know how to switch to silent bios and via versa in your card. Back up BOTH of your bios. Then reply to this thread for your next lesson. |
