newegg often sells graphics cards at a discount via ebay. vega 64 was on ebay for $499 the other day while vega 56 was 469 minimum. So I picked up a 64 even though it's only supposed to be marginally faster.
I spent a couple days on it. Real frustrating experience. Then tried windows 7 (no dice) and windows 10 (worked this time, with occasional glitches). Going to have to say, not much has changed in 20 years -- ATI drivers are still junk.
From what I've heard (not personally witnessed), Vegas beat the pants of everything else (both CPU & GPU) for XMR/eth. I was looking for two to go in my dual Xeon workstation/miner, but if I can solve a boot loop problem for a "spare" ITX board I have laying around I would get a third for it...
I thought 2KH/s @ ~220w is still the H/w number to beat?
Yep I followed the blogpost and have 64gb virtual memory. Using the blockchain driver and overdrive to set the cards@modder man
Sell me your "defective" vega card.
Follow the blog post link that I posted in the first post.
I used a G1850 with internal video card, tweaking is so much easier.
My hosting Windows 10 machine has 8gb ram
Make sure you have enough virtual memory, it worked with 24gb for 1 card , then changed to 60gb
Download all the software
Install the AMD block chain driver.
create the OverdriveNTool.ini , use the blog post example as safe starting point.
First time , I skip the soft power table registry mod , I was still getting 2KH/s with full power.
Then I add the soft power table registry to bring down power.
create startmining.bat , add the batch file to start during system startup
During mining, NO hdmi dummy plug or any monitor connected to any video port
I rebooted the machine many times , it just work and no drop in hashrate.
So, you're only changing the P7 and P3 state voltages? What are the rest of them set to according to Overdrive?
[Profile_0]
Name=Vega64
GPU_P0=852;900
GPU_P1=991;900
GPU_P2=1084;900
GPU_P3=1138;900
GPU_P4=1150;900
GPU_P5=1202;900
GPU_P6=1212;905
GPU_P7=1408;850
Mem_P0=167;900
Mem_P1=500;900
Mem_P2=800;900
Mem_P3=1100;850
Fan_Min=3000
Fan_Max=4900
Fan_Target=75
Fan_Acoustic=2400
Power_Temp=85
Power_Target=0
[Profile_1]
Name=Vega56
GPU_P0=852;900
GPU_P1=991;900
GPU_P2=1084;900
GPU_P3=1138;900
GPU_P4=1150;900
GPU_P5=1202;900
GPU_P6=1212;905
GPU_P7=1407;950
Mem_P0=167;900
Mem_P1=500;900
Mem_P2=800;900
Mem_P3=950;900
Fan_Min=3000
Fan_Max=4900
Fan_Target=75
Fan_Acoustic=2400
Power_Temp=85
Power_Target=0Yes, only the higher states can be changed when using Overdrive or Wattman. However, the other states can be updated via the Powerplay table in the registry. The 900-905mv preset is not stock as far as I know. I think I remember seeing stock voltages starting at 800mv in the lowest state and then they go up from there.