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pornluver (OP)
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March 24, 2017, 11:44:46 AM |
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Whattomine.com says I should be getting 29MB/s rate.
Some says they can get 30MB/s rate.
What did I do wrong?
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batko
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March 24, 2017, 11:54:56 AM |
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you need moded bios for 30+mhs
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Donation: ETH: 0x0c8ce94dd3d1bfd09c0f887559c61d1b551e4b4d
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philipma1957
Legendary
 Offline
Activity: 4116
Merit: 7824
'The right to privacy matters'
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March 24, 2017, 12:06:44 PM |
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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  |
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Ambros
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March 24, 2017, 12:09:42 PM |
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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 |
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pornluver (OP)
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March 24, 2017, 12:14:15 PM |
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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 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/ |
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Eyedol-X
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March 24, 2017, 12:52:14 PM |
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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 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 - Edit Memory Timings in Bios
- OC Memory to 2150
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. |
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Raja_MBZ
Legendary
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Activity: 1862
Merit: 1505
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March 24, 2017, 12:58:51 PM |
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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.
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pornluver (OP)
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March 24, 2017, 01:08:25 PM |
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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.
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Ambros
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March 24, 2017, 01:12:15 PM |
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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 |
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pornluver (OP)
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March 26, 2017, 12:58:28 AM
Last edit: March 26, 2017, 01:19:40 AM by pornluver |
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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. |
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xxcsu
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March 26, 2017, 05:44:05 AM |
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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  |
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Raja_MBZ
Legendary
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Activity: 1862
Merit: 1505
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March 26, 2017, 08:51:17 AM |
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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. |
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dagarair
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March 26, 2017, 10:56:55 AM |
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if you are confused DON'T DO IT. You might have a nice doorstop.
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pornluver (OP)
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March 27, 2017, 04:33:25 PM |
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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?
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pbuva
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March 27, 2017, 04:41:57 PM |
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I overclocked my memory clock.
I got 27.8 MH/s and everything is stable.
What clocks you set? Basically the system always crash everytime I tried other algorithm.
Nicehashminer is is basically a errors generator, many algos ended with to BSOD. |
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pornluver (OP)
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April 01, 2017, 07:30:34 AM |
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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? |
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bijot01
Newbie
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Activity: 16
Merit: 0
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April 01, 2017, 09:46:25 AM |
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use modding bios
you can go 30-34mh/s for 120w/ card (72w for cpu 45w for memory)
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pornluver (OP)
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April 02, 2017, 07:19:09 AM |
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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? |
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bijot01
Newbie
Offline
Activity: 16
Merit: 0
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April 04, 2017, 07:45:17 AM |
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...just try one thing : search rx480 mod bios eth on google maybe .......!!!!!!!?  ? |
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pornluver (OP)
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April 04, 2017, 07:46:13 PM
Last edit: April 04, 2017, 08:54:18 PM by pornluver |
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...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-E3471002 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. |
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