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1  Alternate cryptocurrencies / Mining (Altcoins) / Re: tdxminer lyra2z/XZC Miner for AMD GPUs on Linux on: September 04, 2018, 07:17:47 PM
Quote from: nitrobg on September 03, 2018, 06:38:12 AM
Quote from: kiaas on September 01, 2018, 05:04:46 PM
Quote from: Jon Mnemonic on September 01, 2018, 08:02:17 AM
Is the hashrate the same for Rx 580 and RX 480 mining Lyra2z?
Only if you've got them at the same power limit, voltage, and clock. the 480s reference power limit and clock speed are lower than the 580s, so in general no it's not the same.
RX 480 clocks to 1266mhz by default, 580 to 1340. RX 480 default TDP is 150W and 580 is 185W TDP, and I believe amdgpu doesn't allow raising the powerlimit that the powerplay table should allow so you aren't going to raise a 480 to match a 580 on core-heavy algos like lyra2z.
Personally, because of that I modded my vbios on an RX 470 to adjust the TDP to be raised by around half of the powerplay powerlimit range, and then lowered the powerlimit range so I wouldn't accidentally exceed the card's actual limit by much when I got to an OS that allows adjusting it. (89W to 100W TDP, 20% Powerlimit range down to 8%.) I couldn't get over about 2.8MH/s on it before and now I'm getting 3.1, and I'm sure with more fiddling I could get further.
It's pointless to overclock the cards above their sweet spot. Run the memory at 300MHz, set core to 1150-1200MHz and lower the voltage as much as you can. 4xx series run at around 900mV, 5xx series are at around 800-850mV.

Exactly, I run my 580 at 1145 clock and 300 memory. So if I will buy the 480 all will have the same parameters.

BTW. How to undervolt in Linux? For sure there are 100 ways to do it Smiley
I am using Ubuntu 18.04 with rocm drivers. Is there a command in rocm-smi to do that?
2  Alternate cryptocurrencies / Mining (Altcoins) / Re: tdxminer lyra2z/XZC Miner for AMD GPUs on Linux on: September 01, 2018, 08:02:17 AM
Is the hashrate the same for Rx 580 and RX 480 mining Lyra2z?
3  Alternate cryptocurrencies / Mining (Altcoins) / Re: Lower hashrate on one card RX580 - ETH mining with Claymore on: February 02, 2018, 06:35:15 PM
After 7 hours, it runs stable. Hashrate is similar in both RX580.


Quote from: Amstellodamois on February 02, 2018, 11:35:39 AM
Quote from: MATHReX on February 02, 2018, 11:22:22 AM
Uninstall your drivers using DDU in safe mode and intsall blockchain drivers and run ATI patcher.

I like the latest Adrenalin, I'm running over 31 MH/s with my Saphire Pulse OC.



OP> Are they in compute mode?
Fresh windows install? Are you doing something else with your machine (my hashrate was dropping when I was plotting an HDD)?



I diid small test, I uninstall the blockchain drivers using DDU and install the latest Adrenaline drivers (18.2.1). After that, one card was 30Mh/s and second was 16Mh/s.
After that I ninstall drivers onse again and bo back to the blockchain ones.
I do not have a fresh windows install, I have a upgrade from win7.

What else can I do to increase the hashrate to 30Mhs?
4  Alternate cryptocurrencies / Mining (Altcoins) / Re: Lower hashrate on one card RX580 - ETH mining with Claymore on: February 02, 2018, 12:19:33 PM
Quote from: MATHReX on February 02, 2018, 11:22:22 AM
1. Set the PCIe lane speeds to GEN1 for both x16 and x1 slots.
2. Increase the virtual memory to 16 GB.
3. Use latest Claymore version.
4. Uninstall your drivers using DDU in safe mode and intsall blockchain drivers and run ATI patcher.
5. TEST -- 1 (With no overclock and undervolt, do a test for hashrates for half an hour).
6. TEST -- 2 (Now, start to increase memory overclock and core undervolt by small increments until you hit the sweet spot for both).

After you've reached this point, you can easily Dual mine and increase your earning by upto 25%.

ad 1. DONE - I have some suspicion that when I changing something in BIOS or just entering BIOS the cards working good after that. With just a restart it sucks with 40Mhs.
ad 2. I have that already
ad 4. I have a win10 migrated from win7 and I don't know why, but I cant enter safe mode. Right now I have only blockchain drivers without AMD software. I play with the drivers some time in the past and uninstall it few times until I figured out how to instal only blockchain drivers without AMD software. (the problem was that GPU-Z shows blockchain drivers only for 1 card, without AMD software and only manually instaled blockchain drivers GPU-Z shows it for both cards) ATI patcher also done.
ad 5. no OC or UV after changing the lane speed to gen1 (entering BIOS Smiley) test started at 12.43 and from beginning it is like that.


So let say it is ok for now...
5  Alternate cryptocurrencies / Mining (Altcoins) / Re: Lower hashrate on one card RX580 - ETH mining with Claymore on: February 02, 2018, 11:35:11 AM
I will test it right away  Smiley.

I have already Blockchain drivers installed

6  Alternate cryptocurrencies / Mining (Altcoins) / Lower hashrate on one card RX580 - ETH mining with Claymore on: February 02, 2018, 11:05:27 AM
Hello all,

This post is my last hope Smiley and I think you will be able to help me.

The problem is that one card hashrate is much lower then the other and even below its potential.
I have a 2 cards only Saphire RX580 pulse 8gb oc. I moded the bios on those cards.
I am using integrated grahpics for monitor. Set the Gen2 PCIe in bios and using Windows 10 and Claymore miner.
When I start it everything is ok. the both cards have some reasonable hashrate.

After that, one card is droping its hashrate constantiny until it reaches some point. In picure below this is a 16Mh/s


I dont know what is the issue here.
I tried to:
  • restart the PC
  • restart the miner like 1000 times  Angry
  • changing BIOS setting (PCI gen3, gen2, gen1)
  • changing the cards to different slots on MB (with or without riser)
  • play with the Afterburner and Claymore settings (-cclock 1130 -mclock 2250 -cvddc 870 -mvddc 970 - asm) I think I have the readme.txt claymore in my head now  Wink
  • trying different version of Claymore

using the Claymore Dual 10.5 but mining only ETH.
start.bat looking like that:

setx GPU_FORCE_64BIT_PTR 0
setx GPU_MAX_HEAP_SIZE 100
setx GPU_USE_SYNC_OBJECTS 1
setx GPU_MAX_ALLOC_PERCENT 100
setx GPU_SINGLE_ALLOC_PERCENT 100
EthDcrMiner64.exe -epool eth-eu1.nanopool.org:9999 -ewal [WALLET.EMAIL] -epsw x -mode 1 -allpools 1 -cclock 1130 -mclock 2250 -cvddc 870 -mvddc 970

I have a Gigabyte MB (GA-Z97X-Gaming 3), PSU 850W.

I must say that sometimes when I restart the PC and start the mining again I have a very good results:
(part of log 2 days ago)
18:14:18:485   28f8   new buf size: 0
18:14:18:486   28f8   ETH: 01/28/18-18:14:18 - New job from eth-eu2.nanopool.org:9999
18:14:18:486   28f8   target: 0x000000006df37f67 (diff: 10000MH), epoch 166(2.30GB)
18:14:18:488   28f8   ETH - Total Speed: 57.790 Mh/s, Total Shares: 0, Rejected: 0, Time: 00:01
18:14:18:489   28f8   ETH: GPU0 27.994 Mh/s, GPU1 29.797 Mh/s

And that hashrate was for about 6 days, stable on lvl 55/57Mh/s. After that, I had a small internet problems and when mining starts again it is like on picture - 43Mh/s.
Can someone have a clue what could be the reason and how to make this mining repeatable?
What should I change to get good Hs (reasonable for the RX580) stability?

Thanks in advance!
Jon
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