HD5970 locking up in 3D

[lowdog]

Furmak only uses 1 core on the 5970 and is a useless test for stability on a dual core card.

Let the system sit idle for a while so the vid cards temps can drop and stabalise then run some 3DM06 or Vantage or Stalker COP benchmark.

[jooney]

Nice to see that some of these work. Must be some minor component differences.

@ Jooney. You should run furmark fullscreen and even more importantly, disable MSAA. At 1ghz your VRM Current Draw should be able 80 amps. It's currently about 50amps. That will make a huge temp difference on the VRMs. I'm interested to see how this block performs under some real stress.

Without MSAA its about 100° sure,but thats only a Furmark thing,no real scenario have those temps,during Vantage with 1000/1200@1,2 highest VRM Temp was 50°.
So massive heat on very little spot can no cooler handle.

Furmak only uses 1 core on the 5970 and is a useless test for stability on a dual core card.

Let the system sit idle for a while so the vid cards temps can drop and stabalise then run some 3DM06 or Vantage or Stalker COP benchmark.

This was Furmark with both GPUs,look at the screen!
Vantage,Furmak or idle whats else it runs fine
Here another screen with MSI Afterbruner in it where you also see that both GPUs are running during Furmark.

[jcool]

Current reading seems really low though.. I am seeing 65A at the same settings (1Ghz core @ 1,2V) running milkyway@home and double the VDDCI current as well...