I have factory overclocked GPU, Radeon RX 460 2GB GDDR5 from sapphire.
I've tried anything possible up to full windows format, changing bios option and reseting them, and unpluging the GPU.
I tried to benchmark the game is crashing after few seconds once the game is loaded, ETS2 for example. the current clock is 1209mhz
and monitoring the GPU using HWiNFO, the temps didn't get above 50degrees, wattage didn't really get high, fan didn't really increase, voltage didn't change (0.580V)
also, I'm experiencing screen flickering at boot and sometimes in safemode with the GPU, but the boot isn't flickering when using just the integrated graphics.
When I downclocked my GPU to 998mhz nothing crashed, and it fixed everything, now I'm not sure if this is faulty GPU or any other problem. I tried using the drivers given with the GPU and the latest drivers too.
CPU: Core2quad q8400 2.66ghz
ram 4gb DDR2 Dual Channel 333mhz (5-5-5-15)
MB: P5KPL-AM asus
GPU: Radeon RX 460 2gb GDDR2
PSU: Zalman ZM450-GS
HDD: 232GB Western Digital WDC WD2500KS-00MJB0 ATA Device (SATA)
it seems like the more graphic intensive the game the earlier the game is crashing, and sometimes it might get to BSOD,
"driver irql not less or equal"