Computer Won't Boot - No Signal

[Flash895]

Before going into the current problem, I'd been experiencing issues with my computer randomly shutting off to a white screen while gaming. I'd have to force shutdown in order to get out. Occasionally it would then have problems starting back up (e.g. It would prompt a startup repair which would work for 15 minutes and then fail to fix anything), but after a few hours being left to itself it would boot back up with no problems. Still wouldn't be able to game without experiencing the white screen-crash and starting all over again, however.

Took the graphics card out and cleaned the dust from it, including everything else in the tower. Still got the white screen-crashes.

Searching around for a solution led me to believe that apparently I needed to [urlExt=http://guru3d.com/files-details/display-driver-uninstaller-download.html]completely uninstall my graphics drivers[/urlExt] and then reinstall the latest. Did that in safe mode and restarted, but while the new driver installer was in the process of unpacking files, I lost signal to my monitor. Left it alone for a while to see if it would come back on - no dice.

Now, I tried to force shutdown. That didn't work - only way I could turn it off was to unplug the power cable. I tried unplugging the power cable and holding down the power button for a minute before turning it back on - that didn't work either. Now I'm stuck with a monitor that says "No signal," and trying to force shutdown still doesn't work. Fans turn on and everything else seems to be powering on, just not getting any signal. What do I do?

This computer isn't new. It's about 4 years old, worked great up until this week. Here are the specs if it helps any:

Processor: AMD FX-8350 CPU (8x 4.00GHz/8MB L3 Cache)
Memory: 16GB [8GBx2] DDR3-1866 ADATA XPG V2
Motherboard: ASUS M5A97 R2.0 -- AMD 970
Power Supply: 750 Watt Enermax LEPA G750-MAS 80 PLUS Gold
Graphics Card: NVIDIA GeForce GTX 660 - 2GB
OS: Windows 7

Would appreciate any advice. Thanks in advance.

 

[Darkbreeze]

Find, borrow or buy a new graphics card. If you can find one to borrow temporarily, you can at least rule out if it is or is not the GPU card. I suspect that it is since the rest of the system is working and you are getting otherwise normal behavior. First, I'd try a different display cable. Second, GPU card.

Clearly it COULD be a PSU issue, perhaps a bad PCI power cable to the graphics card or faulty PSU, but that G series LEPA unit is actually pretty good from what I can find on it, so unless it's rather old, I'd say it's less likely to be at fault than the GPU card. If you have the same problem with another graphics card installed, then it's entirely possible you have a bad PSU or motherboard issue.

The fact that you were getting a white washed display would seem to indicate a problem with either the cable or the GPU card though, IMO.

It COULD also be a driver issue. You may want to download and run the DDU, and try an older driver.


http://www.tomshardware.com/faq/id-2767677/clean-graphics-driver-install-windows.html


Maybe try this driver after running the DDU again if you ran it before. You should probably run it between every attempt at using a different driver version:

http://www.nvidia.com/download/driverResults.aspx/103909/en-us