The RX Vega 64 Owners Thread

plasmahal · 19 Jul 2021 at 14:09

Something else i have found from a few different sources, The Vega 64 work better using 2 separate 8pin power leads rather than a single cable with a splitter. Gonna try that.

pete910 · 20 Jul 2021 at 17:51

plasmahal said:
Something else i have found from a few different sources, The Vega 64 work better using 2 separate 8pin power leads rather than a single cable with a splitter. Gonna try that.

To be frank you should have been doing that from the start !

plasmahal · 20 Jul 2021 at 17:55

pete910 said:
To be frank you should have been doing that from the start !

I agree, it should have come like that from the retailer.

pete910 · 20 Jul 2021 at 18:02

plasmahal said:
I agree, it should have come like that from the retailer.

That retailer ain't worth a damn if that's how its left them. IIRC that's out of spec for the card as I believe one 8 pin is 150w. Think the cards are rated at 250w ish.

MCFC_ANDY · 20 Jul 2021 at 18:07

i always knew about the 2 seperate power cables due to places like OC forums

plasmahal · 20 Jul 2021 at 18:25

pete910 said:
That retailer ain't worth a damn if that's how its left them. IIRC that's out of spec for the card as I believe one 8 pin is 150w. Think the cards are rated at 250w ish.

They own these forums!!!!!

MCFC_ANDY said:
i always knew about the 2 seperate power cables due to places like OC forums

You'd think they would know then.

Falkentyne · 20 Jul 2021 at 18:41

plasmahal said:
Something else i have found from a few different sources, The Vega 64 work better using 2 separate 8pin power leads rather than a single cable with a splitter. Gonna try that.

And, results.....?

MCFC_ANDY · 20 Jul 2021 at 19:07

plasmahal said:
They own these forums!!!!!

You'd think they would know then.

well you would think that, but guess retailers is about selling, very rare some have good after sales, or its mentioned during sale

plasmahal · 20 Jul 2021 at 19:49

Falkentyne said:
And, results.....?

Very promising at the moment. Been stress testing and getting temps up to make sure cooling is OK. Will be game testing later.

pete910 · 20 Jul 2021 at 22:00

plasmahal said:
They own these forums!!!!!

You need to put a complaint in then, OCUK should and do know better!

plasmahal · 20 Jul 2021 at 23:09

Got nearly 2 hrs of RB6 before it black screened. Temps were at most mid fifties and overall a lot cooler that before.

Next need to try and work out under-volting to see if that helps.

Falkentyne · 21 Jul 2021 at 07:21

plasmahal said:
Got nearly 2 hrs of RB6 before it black screened. Temps were at most mid fifties and overall a lot cooler that before.

Next need to try and work out under-volting to see if that helps.

Check the temps in hwinfo64 for GPU, hotspot and VRM1 and VRM2.
If they are all in check (VRM 1/2 < 70C, Hotspot < 90C, GPU <80C), then the card is probably dying (HBM most likely).
My Vega 64 died the same way. Except first the FPS started momentarily dropping to 15 fps in Fortnite before going back to 120. Then eventually it just black screened. Then worked for one more day, then black screened then after another reset there were color bars in the BIOS and that's all she wrote.

Sold it for parts/not working for $250 USD on the bay.

plasmahal · 21 Jul 2021 at 08:30

Falkentyne said:
Check the temps in hwinfo64 for GPU, hotspot and VRM1 and VRM2.
If they are all in check (VRM 1/2 < 70C, Hotspot < 90C, GPU <80C), then the card is probably dying (HBM most likely).
My Vega 64 died the same way. Except first the FPS started momentarily dropping to 15 fps in Fortnite before going back to 120. Then eventually it just black screened. Then worked for one more day, then black screened then after another reset there were color bars in the BIOS and that's all she wrote.

Sold it for parts/not working for $250 USD on the bay.

Well, I installed HWINFO64 and set the logging on.

I ran furmark gpu stress test with ran several times yesterday for quite a long time without issues and it black screened a few seconds later.

I have partial results from logging and these is a lot.

MCFC_ANDY · 21 Jul 2021 at 08:30

well im mining on mine and hbm sitting at 72 degrees 24/7 for last 6 months @ 1050mhz, hotspot doesnt get above 53. and still works a treat when fancy a quick blast on a pc game, although to be fair i have a vega 56 bios on there and a decent hbm overclock hence why a little toasty at 72,but have seen far higher :cry:

plasmahal · 21 Jul 2021 at 08:53

Falkentyne said:
Check the temps in hwinfo64 for GPU, hotspot and VRM1 and VRM2.

Where is this on the logging?

If keeps crashing I won't see the live results.

plasmahal · 21 Jul 2021 at 14:41

plasmahal · 21 Jul 2021 at 15:48

Ran furmark for just over an hour with no issues, results are as per screenshot as they stayed contant.

MCFC_ANDY · 21 Jul 2021 at 16:48

ive seen folk over that hotspot, i thought throttling began around 95,i could be wrong but sure i read was around that, though have seen over 100 with folk reporting no issues, my nitro hotspot was in mid 80's iirc when overclocking, though i was quite a bit higher than those settings

DoneADougalOnSofa · 21 Jul 2021 at 17:43

MCFC_ANDY said:
ive seen folk over that hotspot, i thought throttling began around 95,i could be wrong but sure i read was around that, though have seen over 100 with folk reporting no issues, my nitro hotspot was in mid 80's iirc when overclocking, though i was quite a bit higher than those settings

107, I believe... Was hitting throttling after installing my waterblock, as I mucked up the paste application. Second attempt was spot-on, not seen it go over 70 since.

plasmahal · 21 Jul 2021 at 18:39

So, plan is to replace the PSU with Corsair RM Series RM850 850W '80 Plus Gold' Modular Power Supply, then re-test.

If issue persists, then use the R9 and sell the Vega 64.