Multiple WU's causes failure

Chooka
Chooka
Joined: 11 Feb 13
Posts: 95
Credit: 1,003,719,693
RAC: 671
Topic 215382

I need some advice please because I find this issue interesting...

I've tested 2 different RX 480's running 1 WU which works fine. However with both cards, if I increase it to 2 x WU's, after say...1 min (maybe not even 1 min), the screen freezes for a second, goes black (device hanging?) then recovers but the GPU load drops to 0.

In this state I can run Furmark with no issues. I restarted GPU-Z just to check it wasn't falling over (unlikely) and it's fine. It still reads 0 GPU load with BOINC running.

If I quit BOINC and restart, 2 X WU's begin again then fails.
I'm left thinking that it surely can't be the cards and the PSU is a brand new 1050W 80 plus rated so I doubt it's the PSU.

Anyone got any suggestions?

I could pull my Vega out of my second box and test that. That would definitely exclude issues with the cards but that's a fair bit of work etc.

Thanks in advance.


Chooka
Chooka
Joined: 11 Feb 13
Posts: 95
Credit: 1,003,719,693
RAC: 671

Oh I might add, Prior to the

Oh I might add, Prior to the RX480's I was running 2 x WU's on a GTX 970 with no issues.


Chooka
Chooka
Joined: 11 Feb 13
Posts: 95
Credit: 1,003,719,693
RAC: 671

Just tried no CPU work,

Just tried no CPU work, Einstein only. Max power draw was 110W and temp was 75 degrees with fan at 52%.

Still failed with 2 x wu's.


Chooka
Chooka
Joined: 11 Feb 13
Posts: 95
Credit: 1,003,719,693
RAC: 671

Sorry...perhaps I should have

Sorry...perhaps I should have looked harder. I'm guessing my issue is the same reported here.

https://einsteinathome.org/content/rx-480-running-slow-why

 

Guess 1 WU it is :/


Gary Roberts
Gary Roberts
Moderator
Joined: 9 Feb 05
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Hi Chooka, I've sent you a

Hi Chooka,

I've sent you a PM.

 

Cheers,
Gary.

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