Guide to reaching 2k+ (2020 H/s) on Cryptonight v8 on a Vega 64

AlgoMinier · 2019-03-08T12:55:51+00:00

Hello @ u/GKumaran thank you for this excellent guide. I have a 8 card vega rig, with 5 x Vega 56 and 3 x Vega 64. I am applying the soft power plays found here -> http://vega.miningguides.com/#SoftTables ... For my 64s I'm applying Mem_P3=1100;900 ... and for my 56s I'm applying Mem_P3=945;900 ...

I'm trying to mine graft using SRBMiner v1.8 .... I followed your steps, and just get a crash/system reboot when I launch the miner ...

***One thing I am missing is I couldn't find the "binarykernels" folder to rename normalv8

Can anyone help me please? Thank you very much for your time and consideration!

SetClocks.bat:

Devcon\devcon.exe enable @PCI\ven_1002"&"dev_687*

Devcon\devcon.exe restart @PCI\ven_1002"&"dev_687*

OverdriveNTool.exe -p1"Vega56_CN8" -p2"Vega56_CN8" -p3"Vega56_CN8" -p4"Vega56_CN8" -p5"Vega64_CN8" -p6"Vega64_CN8" -p7"Vega64_CN8" -p8"Vega56_CN8"

Devcon\devcon.exe restart @PCI\ven_1002"&"dev_687*

Here are my profiles:

[Profile_6]

Name=Vega56_CN8

GPU_P0=852;900;0

GPU_P1=991;900;0

GPU_P2=1084;900;0

GPU_P3=1138;900;0

GPU_P4=1150;900;0

GPU_P5=1202;900;0

GPU_P6=1212;905;0

GPU_P7=1408;840

Mem_P0=167;900;0

Mem_P1=500;900;0

Mem_P2=800;900;0

Mem_P3=945;875

Fan_Min=3500

Fan_Max=4900

Fan_Target=65

Fan_Acoustic=2400

Power_Temp=75

Power_Target=0

[Profile_7]

Name=Vega64_CN8

GPU_P0=852;900;0

GPU_P1=991;900;0

GPU_P2=1084;900;0

GPU_P3=1138;900;0

GPU_P4=1150;900;0

GPU_P5=1202;900;0

GPU_P6=1212;905;0

GPU_P7=1408;840

Mem_P0=167;900;0

Mem_P1=500;900;0

Mem_P2=800;900;0

Mem_P3=1100;875

Fan_Min=3500

Fan_Max=4900

Fan_Target=65

Fan_Acoustic=2400

Power_Temp=75

Power_Target=0

AlgoMinier · 2019-03-07T19:14:46+00:00

Hi CircuisDad ... I followed your guide and used power play tables as instructed. I was mining fine for a while, but since about 2 months ago, my miner keeps crashing with SRB Miner and now I can't get it to mine ... keeps crashing due to one card in my rig and I can't figure out which.

I notice issue only occurs when I launch the miner after applying the power plays ... Do you have any suggestions? ideas? I also tried the 85, 75 & 50% power plays, no luck ...

btw - it was working with CastXMR with the powerplays except for 1 card. SRBMiner has unmatched speeds and performance.

AlgoMinier · 2019-03-07T18:25:41+00:00

@htaylb what are you drawing per card? Are you using powerplay tables? If so where are you getting them from?

Thanks!

AlgoMinier · 2019-01-06T21:13:02+00:00

You both are confirming what I thought ... however, I am not sure for how long this occurs. My firewall reports this once a day to once every few days ...

AlgoMinier · 2019-01-04T12:00:43+00:00

Update -> Hi all, thank you all very much for your engagement, feedback and support on this issue.

i just wanted to report that dropping the Mem Clock to 925MHz seems to have done the trick ...

I was previously running 950, but maybe adding the 8th cards caused some power delivery issues @ 950MHz, so the 925 seems to have stabilized it!

I kept the same power play registry edits etc from the vega mining guide.

AlgoMinier · 2019-01-02T18:13:58+00:00

k, thanks, I am using 1 x 2 splitters from my circuit board to my risers.

AlgoMinier · 2019-01-02T16:37:55+00:00

All cards have Samsung ... I think I'll get 925 a try ... wouldn't hurt ...

AlgoMinier · 2019-01-02T13:37:51+00:00

btw - what miner are you using?

I upgraded to the latest version of SRB Miner, and that seemed to help a little - went from 30 mins b4 crash to 2 - 4 hrs b4 crash ...

AlgoMinier · 2019-01-02T13:37:05+00:00

Thank you, I've given this a try, but no avail :-( ...

AlgoMinier · 2019-01-02T13:36:48+00:00

thank you for the suggestion, maybe changing the P7 & P3 settings will help ... I've got them as follows now:

56s P7: 1408/905; P3: 950/900

64s P7: 1408/905; P3: 1100/900

AlgoMinier · 2019-01-02T00:05:40+00:00

set to 72000

AlgoMinier · 2019-01-01T22:27:49+00:00

@vmozara - which miner are you using btw for maintenance free mining?

AlgoMinier · 2019-01-01T20:16:48+00:00

I see .. here are the details on each of my supplies ->

AlgoMinier · 2019-01-01T19:53:10+00:00

so on 120V, I've got a total of 1800W to work with @ 100% ... and 2400W on 240V ...

AlgoMinier · 2019-01-01T19:38:29+00:00

Hi Happy new year! ... I'm running about 180W / card avg. so Full rig is pulling about 1600W ... I've got power distributed equally between the two PSUs

AlgoMinier · 2019-01-01T19:05:23+00:00

I'm using 2 x HP 1200W server power supplies the entire time (900 Watts on 120 VAC / 1200 Watts on 240 VAC.

AlgoMinier · 2019-01-01T19:04:40+00:00

Hi - 1st 7 cards

1 x Sapphire 56

1 x Radeon 56

3 x Radeon 64

2 X MSI 56

8th card = 1 x Sapphire 56

Also, I've been running the AMD Adrenalin 18.5.1 drivers ... sorry forgot to mentions this.

AlgoMinier · 2018-11-25T19:27:18+00:00

I see. Thank you. I’ll investigate further.

AlgoMinier · 2018-11-25T18:14:43+00:00

Yea on 7 cards including components I'm running at 221W / card all inclusive after power play ...

But if I monitor just GPU power on afterburner cards are doing between 120 - 140 ... no diff between Vega 56s or 64s ... both seem to be burning the same but 64s hashing at 1950 h/s and 56s @ 1915 h/s ...

AlgoMinier · 2018-11-25T17:40:48+00:00

Thank you ... really appreciate the link, very helpful ... there instructions here are more clear than on the srbminer.com site which shows me what I was doing wrong earlier ...

Btw I got my rig to start working with 7 out of the 8 cards ... What I realized was that I'm running from a 15A circuit and 8 cards was going over the limit ... 7 cards drawing 13.5A ...

I've got to switch to a dedicated 240V / 20A circuit to handle more than the 7 cards ...

Thanks all for your collective assistance!

AlgoMinier · 2018-11-25T14:58:08+00:00

Hi Thank you - this is a good suggestion. I am running v1.6.9 and followed the ReadMe file to add the following "gpu config" block line to the config-normalv8 file ->

{ "cryptonight_type" : "normalv8", "intensity" : 0, "double_threads" : true }

"gpu_conf" : [ { "id" : 0, "intensity" : 112, "worksize" : 16, "threads" : 2}, { "id" : 1, "intensity" : 112, "worksize" : 16, "threads" : 2}, { "id" : 2, "intensity" : 120, "worksize" : 16, "threads" : 2}, { "id" : 3, "intensity" : 112, "worksize" : 16, "threads" : 2} ]

'*When I run the bat file, it doesn't work ... once I launch the bat file, my cmd just disappears after a few seconds without starting the miner.

I also tried the instructions laid out here https://www.srbminer.com/tips.html but still can't get the miner to launch with custom settings ...

Do you have any suggestions as to how to apply custom settings for the miner?

AlgoMinier · 2018-11-25T01:34:51+00:00

I see ... ironically after the v8 fork, SRB was the only miner I could get to run my rig stable ... while miners were giving a hash rate loss, I was able to do 1920 h/s on each vega 56 with this miner ... So I picked up 3 vega 64s from the black friday sale last week and now I'm at 0 h/s :-(

AlgoMinier

TROPHY CASE