So I have been trying to troubleshoot my dad's computer and I am stumped. The monitor keeps going completely blank, but the monitor light stays green and the computer is still running. If we turn the monitor off and then back on the screen comes back for a few seconds, the same thing happens when we unplug the VGA cord and plug it back in. It does this in XP and windows 7 (he has a dual install) and it also happens in safemode while the computer is booting, while in the BIOs and while using a rescue disk.
My first thought was the monitor itself, but trying a different monitor did not solve the problem (and the original monitor works fine when hooked up to a laptop). I tried plugging the power cord in to different power outlets and changing the cord to a new VGA cord and to a DVI cord. I brought a new video card, and the power source is less then a month old. Ran anti-virus and malware bytes and that did not fix the problem.
However when I hooked the computer by VGA cord to his TV it works fine so what ever the problem is it's only effecting the monitors (we don't have a CRT to test, so I don't know if it's only the LED monitors)
Any help would be greatly appreciated, specs below.
CPU: AMD Phenom II X2 560
MoBo: ASUS M4N68T-M-V2
Memory:16 GB DDR3
Monitor: VIZ VO320E