Posted 22 July 2011 - 01:23 PM
I've got a Dell XPS/Dimension Gen 4 PC, with a nVidia G Force 6 series video card. For the last few months, if I restart the PC, the PC fully boots up but I get no display on my monitor. The monitor's power light stays amber, as if the DVI cable is unplugged. If I perform a Shutdown and then power up the PC, the video works perfectly!
Today, the PC re-booted itself, without warning. I used remote software to access the desktop, since the display was not visible. I performed a shutdown. When I powered the PC back on, I was able to log on. After a minute or so, the PC shutdown completely and there was a burning smell, but I could not locate the source.
I unplugged the PC, opened the cover and used compressed air to clean everything out. I re-set all of the PCI cards and the memory modules. Now when I power it up, the burning smell is gone but the CPU fan starts spinning at a very high speed. The light on the power switch is green, but the neon colored light on the front panel does not come on. The diagnostic lights on the back are as follows:
A - amber
B - green
C - amber
D - green
The documentation indicates a possible faulty video card, but would this cause the CPU fan to spin so fast? Am I looking at a possible power supply issue? Thanks!