820-3332 Crash unigine Heaven bench

[rvanpruissen]

Fixed U8900 on this one. Ran Heaven to test, but this crashes and OSx returns to lockscreen shortly after. The fans run high after a while (without running Heaven), with low temperatures in iStats. ASD doesn't work, not sure why: 1) EFI version claims I'm using the wrong version (3S150) 2) Internet version produces a '...cannot load EFI/Drivers/TestSupport.efi' error.

Any help would be greatly appreciated.

 

[2informaticos]

"ASD doesn't work"
Try disconnecting internal SSD.
3S150 should work on this board, but you can try 3S155 too.
Install gfxcardstatus and test machine with iGPU only.
See if problems appear only under discrete GPU.

 

[rvanpruissen]

Thanks!

Both ASD's don't work. (tested without SSD) Google tells me more people have experienced this issue after a firmware update.

gfxcardstatus won't let me change to integrated and stays on dedicated, no matter how many times I click. Sounds like a mux problem to me. I'll try if replacing the mux changes anything.

 

[2informaticos]

I heard someone new gfxcardstatus doesn't switch as expected.
Try to find an older version...

 

[rvanpruissen]

Tried that, and seems to work fine on iGPU. Although gfxcardstatus still has some trouble switching cards sometimes. I'm giving up on this one, it's either going to be GPU or memory I think.
Thanks anyway!