Rui Neves :
drea.drechsler :
OK..wait...why are you testing your PSU with OCCT? do you know what to look for?
what's your configuration: motherboard, cpu, memory, psu, gpu
yes I am testing the power supply , because I already tested the gpu and ssems fine . I am testing the components because my monitor sometimes flahes for 1 second and it´s really anoying . I think I already done almost anything . Only didin´t tested another monito because I don´t have another to test with the same specs as mine .
I have an AMD A8 6600k with AMD R9 280 x and a corsiar vs550 , never had any problem on games , never had flash the monitor 1 time since I have this monitor or this rig , the monitor only flashes on window apps ... That´s so strange that I really don´t know what to do .
My motherboard is a MSI a88xm-E35
OCCT has this test called PSU test...all it does is load the CPU and GPU with extremely power-intensive routines that are absolutely totally unrepresentative of anything anybody would ever do in a real world computing environment. It's probably not really worth the effort chasing down why your system reboots running it.
But it does put a load on a PSU. If I'm interested in seeing how the PSU is working I'd attach a digital multimeter to the 12 volt line at the CPU connector when running that test, compare readings before starting it and after starting it to see how well behaved the 12V bus is. If it changes a LOT from low-load to high-load, or if it fluctuates wildly under load, I'd be worried about the PSU. The best test would be to look at ripple, but that needs an oscilloscope.
But I doubt you have even a DMM...so instead look at the 12volt readout in OCCT. It might work well enough. But ultimately, I'd doubt the PSU, even if failing, could cause the display to flicker like that. One thing you could do is remove the GPU and run only on the APU for a display. If it goes away your GPU could be at fault.