Vega 56 and Vega 64 guide

albyG · April 26, 2022, 10:29am

it seems it’s gonna die…
I suggest a deep clean or even a reflow

have you ever opened it in this year?

Mushugana · April 26, 2022, 4:37pm

Hi, I would try a couple things first. 1- Power down and unplug ac power to the rig from the wall check all connections then restart everything. 2-Update Hiveos to latest version. 3- Refresh bios to card. 4- Reduce core to 1100. Report back. Alan

oni · April 26, 2022, 7:30pm

I had something sorta like. Opened, cleaned & repasted the GPU and changed the riser and all USB and power wires. Yes, in stead of troubleshooting I changed everything. Lazy me, but it worked, and probably faster than troubleshooting . Back at 55ish
PS: core can be lowered to around 1050 and vdd too to save some watt’s.

tasma · April 28, 2022, 12:25pm

Guys

Thanks for tips.
I changed risers, cables, reflashed bios and no sucess.
I’ll try to open the card, clean and repast. Let you know if work again.

Mushugana · April 28, 2022, 1:44pm

Take out all the over clocks and run it blank. Restart/power cycle your rig.

i.mhmdrza.i · May 1, 2022, 8:30am

Hello dear friends
Unfortunately, my xfx vega 56 card had a problem and it is not known if it was mining before the update.
Now, according to the photo you see, there is no reaction
But the card works and gives an image
Could there be a problem with the BIOS?
Thank you for your help
If you have a BIOS of this model and send it to me, thank you

Goulamouk · May 5, 2022, 7:12pm

Hi. What is your Amdmemtweak settings ?
I have an Asus Vega 56 “Hynix” on my rig, I just mine to 50Mh + 900Mh to
Thanks

oni · May 10, 2022, 7:55am

TRM has introduced R-mode. For Vega’s it could shave off a few Watts or give a small hashrate boost:

github.com

todxx/teamredminer/blob/master/doc/ETHASH_TUNING_GUIDE_RMODE.txt

TeamRedMiner Ethash R-mode Tuning Guide
=======================================

History:
v1.0 2022-05-03 (v0.9.4.6 public beta release)

General Overview
================
This guide describes the new "R-mode" introduced in TRM v0.10.0. It
assumes the reader has already read the older ETHASH_TUNING_GUIDE.txt
and is familiar with ethash mining with TeamRedMiner in general.

TRM R-mode greatly improves efficiency for ethash mining on a range of
AMD gpus. It is the most complex and advanced work we've done to
date. It is linux only. At this point we do not anticipate being able
to port it to windows. R-mode contains a number of elements coercing
the hardware into working better in an ethash mining setup. In other
words, we're hacking around quite hard. The upside is most definitely
worth it. However, the downside is that in rare cases the combination
of rig hardware, gpus, opencl version, kernel module simply doesn't

This file has been truncated. show original

Although right now I’m having issues upgrading my testrig:

But once that is resolved I’m gonna try and run the public beta

Any experiences may be shared here!

Have fun!

oni · May 11, 2022, 8:01am

Got my test rig running in R mode; no noticeable benefits till now; set core -200 like in their manual and getting VDD down bit by bit now, got wattage to approximately the same; need more fine-tuning.
I had a few rig hangs which needed a hard power cycle though .
However, my test rig doesn’t have the most stable Vega’s to start with; that’s why they’re on the test rig 2x MSI Airboost 56 Hynix and 1x Gigabyte Gaming OC 64 > 56. These make testing and fine-tuning a pain in the *ss

ibeercan · May 13, 2022, 12:24pm

R-Mode

oni · May 15, 2022, 11:42am

I’ve put my test rig back on B mode for now. Too many rig hangs and not enough time for the time being to dive into it deeper. Will try again later. Probably with one of the other stable rigs then.

BMaster23 · May 16, 2022, 9:23am

You have a YT guide how to do it here :

The thing with Vegas is that you can go below 800mV but it becomes unstable with R mode when the memory clock is above 960. So you can try doing something like 900 Mhz core clock, 781mV, 960 mem clock and see if it works. It is not for the maximum hashrate, but the efficiency should be really good!

oni · May 17, 2022, 5:08am

Well, as temperatures are rising and summer is coming, I’ll need to dive into a more efficient mode anyway.
Maybe I’ll test a rig next weekend.

niexasadas · May 17, 2022, 7:16am

R-mode

0 and 1 uses
amdmemtweak --CL 20 --RC 37 --RP 11 --WR 14 --CWL 8 --FAW 12 --RAS 20 --REF 65535 --RFC 248 --RTP 5 --RRDL 6 --RRDS 3 --WTRL 9 --WTRS 4 --RCDRD 12 --RCDWR 12

2 uses
amdmemtweak --CL 20 --RC 36 --RP 12 --WR 14 --CWL 8 --FAW 12 --RAS 22 --REF 65535 --RFC 249 --RTP 5 --RRDL 6 --RRDS 3 --WTRL 9 --WTRS 4 --RCDRD 13 --RCDWR 12

0 invalids, 0 crashes more than 24 hours

ikledude · May 18, 2022, 12:47pm

R-Mode, Sapphire Radeon RX Vega 64’s with 56 BIOS (all Samsung memory chips)
amdmemtweak --CL 20 --RC 37 --RP 11 --WR 14 --CWL 8 --FAW 12 --RAS 20 --REF 65535 --RFC 248 --RTP 5 --RRDL 6 --RRDS 3 --WTRL 9 --WTRS 4 --RCDRD 12 --RCDWR 12
I’ve lowered about 20w per card on the software, at the wall almost 200w saving if my TPLINK Kasa is correct.
Hope this helps others as a good start.

oni · May 19, 2022, 6:45pm

My Vega reference rig was running too hot; at 55MH/s they ran at almost 80°C HBM. It is probably still a safe temperature, but I don’t like it and try to keep my HBM’s closer to 60°C. Off course during summer this is very difficult.
So below test is not about the highest hashrate, but to lower temperatures.
Although they’re only at 50MH/s now, they run about 10-15°C lower and 200W less at the wall (1220W now, 1410W before), so that’s a big win for me, and they’ll survive summer like this

SoC Frequency = 910Mhz

amdmemtweak --CL 20 --RC 36 --RP 10 --WR 14 --CWL 8 --FAW 12 --RAS 20 --REF 65535 --RFC 216 --RTP 5 --RRDL 6 --RRDS 3 --WTRL 9 --WTRS 4 --RCDRD 11 --RCDWR 12

Going lower than 755mV VDD didn’t work; as in the rig didn’t crash, but in the background (saw on mining screen) set the VDD to 1000mV (and thus higher Watts again). Don’t know why. Maybe a built in safety?

During coming days I’ll try to do my non-reference rig with Asus Strix’es and Gigabyte Gaming OC’s.

oni · May 21, 2022, 7:04pm

My non-reference rig :

0 = Asus Arez Strix 56
1 & 2 = Asus Rog Strix 64 > 56
3 to 7 = Gigabyte Gaming OC 56

They mostly work with the same settings as my reference rig; being core 925, mem 900 and soc 910.
I do have some exceptions in the other settings:
All but 4 works with:
amdmemtweak --CL 20 --RC 36 --RP 10 --WR 14 --CWL 8 --FAW 12 --RAS 20 --REF 65535 --RFC 216 --RTP 5 --RRDL 6 --RRDS 3 --WTRL 9 --WTRS 4 --RCDRD 11 --RCDWR 12
4 works with:
amdmemtweak --CL 20 --RC 36 --RP 11 --WR 14 --CWL 8 --FAW 12 --RAS 21 --REF 65000 --RFC 216 --RTP 5 --RRDL 6 --RRDS 3 --WTRL 9 --WTRS 4 --RCDRD 13 --RCDWR 12
And 4, 6 & 7 need a but higher mvdd to lessen the errors. Still finetuning there.

Again, these are not to have the highest possible hashrate, but to lower the HBM temperatures and survive summer.
Before R mode this rig was running at 426.5MH/s @ 1300W.
Now with R mode it is running at 399.5MH/s @ 1165W.
And most importantly; HMB temperature dropped around 10 to 15°C.

EDIT: I’ve changed some values on the Gaming OC’s as below are more for Hynix memory and above are more for Samsung:
3, 5, 6 & 7:
amdmemtweak --CL 20 --RC 36 --RP 12 --WR 14 --CWL 8 --FAW 12 --RAS 22 --REF 65000 --RFC 216 --RTP 5 --RRDL 6 --RRDS 3 --WTRL 9 --WTRS 4 --RCDRD 11 --RCDWR 12
4:
amdmemtweak --CL 20 --RC 36 --RP 11 --WR 14 --CWL 8 --FAW 12 --RAS 21 --REF 65000 --RFC 216 --RTP 5 --RRDL 6 --RRDS 3 --WTRL 9 --WTRS 4 --RCDRD 13 --RCDWR 12

oni · May 21, 2022, 7:11pm

And then the last Vega’s on my finicky test rig:

0 & 1 = MSI Airboost 56
3 = Gigabyte Gaming OC 64 > 56

Same as above rigs, core 925, mem 900, soc 910.
0 has mvdd 1320
2 has mvdd 1200
(I don’t know why these aren’t showing in the overview as in my non-reference rig)

0 is running:
amdmemtweak --CL 20 --RC 36 --RP 11 --WR 14 --CWL 8 --FAW 12 --RAS 21 --REF 65000 --RFC 238 --RTP 5 --RRDL 6 --RRDS 3 --WTRL 9 --WTRS 4 --RCDRD 14 --RCDWR 12
1 is running:
amdmemtweak --CL 20 --RC 36 --RP 12 --WR 14 --CWL 8 --FAW 12 --RAS 22 --REF 65000 --RFC 238 --RTP 5 --RRDL 6 --RRDS 3 --WTRL 9 --WTRS 4 --RCDRD 18 --RCDWR 12
2 is running:
amdmemtweak --CL 20 --RC 36 --RP 10 --WR 14 --CWL 8 --FAW 12 --RAS 20 --REF 65535 --RFC 216 --RTP 5 --RRDL 6 --RRDS 3 --WTRL 9 --WTRS 4 --RCDRD 13 --RCDWR 12

Before R mode this rig was running at 148.5MH/s @ 496W.
Now with R mode it is running at 145.5MH/s @ 470W.

Still not satisfied about these ones; but hey, that’s why they’re on the test rig

cuthy2k · May 22, 2022, 10:01pm

Really struggling with GPU3 below. It was running fine then I removed a 580 which died and GPU3 went into full meltdown. Settings, straps etc all the same but not I keep getting 'teamredminer: GPU 3: detected dead". It ran stable for months and now refuses to run for 10minutes. Tried many things.

Current strap: amdmemtweak --RC 37 --RP 11 --WR 13 --CWL 8 --FAW 12 --RAS 22 --REF 65535 --RFC 239 --RTP 6 --RRDL 5 --RRDS 3 --WTRL 9 --WTRS 4 --RCDRD 12 --RCDWR 12

oni · May 23, 2022, 3:54pm

That’s a Hynix, but those straps are more for Samsung.

If it’s a reference card, try:
amdmemtweak --CL 20 --RC 36 --RP 13 --WR 14 --CWL 8 --FAW 12 --RAS 23 --REF 65000 --RFC 238 --RTP 5 --RRDL 6 --RRDS 3 --WTRL 9 --WTRS 4 --RCDRD 15 --RCDWR 12

If it’s a Gaming OC, try:
amdmemtweak --CL 20 --RC 36 --RP 11 --WR 14 --CWL 8 --FAW 12 --RAS 20 --REF 65000 --RFC 238 --RTP 5 --RRDL 6 --RRDS 3 --WTRL 9 --WTRS 4 --RCDRD 13 --RCDWR 12

Both with higher or lower RCDRD depending on what yours can handle.

Or check your riser and power cables