Gigabyte RX Vega 64 Crashing.

[dualbass]

I have 2 setups with Vega 64(Strix and Gigabyte)  The Strixx runs flawless even though its hotter(due to the awful VRM). However, on the Gigabyte model when launching a game or even Heaven Unigine, I'm getting a black screen and fans revving up. Running the Strix with a Corsair VS650 PSU and the Gigabyte with at FSP K 700W. Both PSU are almost 1 year old.

 

After swapping the GPUs, the issue was still persisting on the Gigabyte Vega 64. After checking the 1st PC I noticed that the 2nd 8 PIN PCI-E extension was melted. Cleaned the 8-PIN slot on the Gigabyte GPU, hooked it up on the 2nd PC and it melted it again.

Is this a PSU issue? Take note that I did test the Gigabyte 64 on 2 separate rigs that has their own PSU


8-PIN PCIE Cables are Phanteks 500M

[Jurrunio]

either the cable itself is bad (though the PSUs aren't that good either) or something is shorting on the card and pulls way too much current through the 2nd PCIe cable,

[dualbass]

Why is the Strix card not shorting then? Defective GPU? Purchased the Gigabyte Vega 64 just last December 2018. Those 2 cables are from 2 different rigs. 

 

Just tried using the stock 8 pin connector and plugged it in the 2nd spot where the gpu melted the Phantek cables, it worked for 30-45 mins, after that, black screen again. Did not try a 2nd attempt cause Im afraid that the 8pin connecotr might melt again. 

[Galion]

Not all cards are made equal, some cards have voltage protection. Some cards are smart enough to detect  the problem some stupidly draw current even if it still overheats, there are 3 spots could be the cause. 

1) psu

2) the cable

3) the soldering point on the gpus connector 

either way I suggest you send the card back to gigabyte and replace the psu and cables. 

[dualbass]

Could it be my undervolt settings? Is undervolting + high clock speed harmful? P6 - 1537/975mV P7 - 1597/1000mV. This settings worked before. I really liked the card cause it can run on a lower voltage compared to my Strix(when I put p6 lower than 1000mV, Adrenalin crashes)

[Galion]

21 minutes ago, dualbass said:

Could it be my undervolt settings? Is undervolting + high clock speed harmful? P6 - 1537/975mV P7 - 1597/1000mV. This settings worked before. I really liked the card cause it can run on a lower voltage compared to my Strix(when I put p6 lower than 1000mV, Adrenalin crashes)

I can't tell unless I've tested your card. lol

[dualbass]

22 minutes ago, Galion said:

I can't tell unless I've tested your card. lol

What I meant is it safe to undervolt and then push the clock at a higher speed? Cause in WattMan 975mV is at P4 and 1000mV is at P5

[BetterThanLife]

R9 295x2 did this also, the card is pulling way too much current. Simply seeing your PSU not crap the bed whilst your card sucks it's life force stands well for the PSU, but to be safe i would buy another PSU, something with wider gauge wires. I have a Silverstone unit which has 2200UF caps in the end of the PCI-E (fixes all coil whine), the cables are not pretty but are some serious business. Rocked 3-way 580 SLi on it like a champ pushing over 1ghz OC's on each, and this is a 1KW PSU so i may have gone above rated wattage.

 

https://www.silverstonetek.com/product.php?pid=238

 

https://www.silverstonetek.com/downloads/PSU/GPU-supportlist.pdf

[BetterThanLife]

Good read about the R9 295x2 which had the same issue you are having.

 

https://www.tomshardware.co.uk/graphics-card-power-supply-balance,review-33071-6.html

[dualbass]

On 3/7/2019 at 8:33 AM, BetterThanLife said:

Good read about the R9 295x2 which had the same issue you are having.

 

https://www.tomshardware.co.uk/graphics-card-power-supply-balance,review-33071-6.html

Good read indeed.
 

Now the Gigabyte VEGA 64 is not melting the PCI-E power cords. What I did is I directly connected it to the PSU (No extensions)

But it still goes BSOD with the fans revving up to 100%. I noticed that I only get this when setting a custom profile at wattman

Settings are:

State 1: 992/900mV

State 2: 1082/950mV

State 3: 1137/1000mV

State 4: 1237/1025mV

State 5: 1437/1045mV

State 6: 1577/1065mV

State 7: 1632/1075mV

HBM2: 945/1000mV

Power limit +50%

Fans at 75% when going 65c

I already tried tuning down the clock speed with the given mV's, and it will still BSOD with fan going 100%

 

I'll try using balance profile for a few days and check if it will still bsod

[dualbass]

So its been a couple of months now, and Ive tried everything. Now I'm not experiencing black screen anymore. It change to a full pc locked up/freeze! Will RMA this stupid card.