Hi,
I have recently built a cheap pc and it was working. Here are the specs:
Dell precision T5400:
Dual Xeon E5420
PNY Nvidia Geforce GTX 570 enthusiast edition 1280mb
32GB ECC FB-DIMM DDR2 RAM
500 GB HDD
The PSU is rated for up to 875 watts and it is an oem dell psu with 80 plus certified and has two 6 pin power connector for the gpu
And my monitor uses DVI
But later on I noticed a problem where after putting the pc to sleep it would not give a signal once I moved the mouse or clicked the keyboard. I would have to shut it down and restart it, and sometimes even that wouldn't work and sometimes it did. Now it doesn't give any signal at all. So I thought either it was a gpu problem or the motherboard/cpu/RAM problem. So I took my gtx 570 and placed it into another pc and it booted up properly and then I put a gt 210 into the Dell and it worked too. So that means everything is working right? I put the GTX 570 back in the Dell and it doesn't boot up. I even reset the CMOS battery but it still doesn't give a signal. All the fans are spinning. I even checked a psu calculator to see if it wasn't the problem, and I have 200+watts headroom so I think it is good.
I really don't know what to do, and any help would be really appreciated.