Alienware ALX i7960, GTX 1070, Monitor Flicker/Flashing

[Niff]

I’ve had an issue with my pc for a long time, I have what looks like flickering/popup, it happens across different monitors and can be seen in startup, at post screen and in bios…its completely random.
At first I thought malware but then I saw it at post, I thought maybe its the GPU but voltages and fps are all good. I had though it might be the psu so I disconnected the earth and still no difference however this didn’t completely rule it out. Voltages across the board are stable and I don’t see any dips when the flickering happens (its always one flick and gone, it could return a second later or 20mins later), however the refresh rate on the flickering is so fast my sensors probably wouldn’t show anything… I don’t see any correlation on graphs. I don’t have any heat issues and have tried different ram.
I don’t believe anything is cooked but I couldn’t say for sure just that I’m still getting good bench scores and stable fps.
Has anyone got any ideas, I would like to test a new board and cpu but its 1366 and its hard to find a test bench with these components.
Maybe some good techie software I don’t know of that could illuminate?
Thanks Tony

[phillpower2]

Hello Niff,

Good info in your OP but we could do with knowing the brand and model name or number of the PSU so that we can check how good or bad the quality, if the stock Dell PSU for example being the age of it and it being a generic brand it may well be the prime suspect, the issue being present in the BIOS confirms that it is hardware as opposed to software related as well.

[phillpower2]

Thread closed due to lack of any feedback from the OP.