Pc reboots while dx10 3dmark test

[pokrokorg]

Hi,
i'm trying to diagnose PC crashes while DX10 3dmark tests.
PC is running all other dx tests just fine, but when i start dx10 test PC reboots without any warnings, or BSOD. Have anyone seen something like this?
Tried switching PSUs, running test with same GPU on different PC, running test on same PC with different GPU, tried fresh windows install just with drivers and performance test sw, changed RAM... not sure what to do next. I think this PC is actually cursed

logs: https://pastebin.com/EtpKsGML

Thnaks for any help.

[David (PassMark)]

> running test with same GPU on different PC
> running test on same PC with different GPU

And what was the result on the different PC. Did it work? I am assuming it did and the problem was only on the initial PC and still happened even with a new GPU?

Did you try the GPU in a different motherboard slot?
Do you have the PCIe power cable connected? (assuming this GPU needs one)