posted on Oct, 27 2006 @ 03:13 AM
If the above advice didn't work:
A quick way to pinpoint to either monitor problems or PC (video card) problems is to test another monitor on the PC. Make sure that you insert the
cable correctly into the video card, as Spacedoubt suggests. It's easy to accidentally force the cable into the connector the wrong way round.
Also, when you start up the PC, immediately after the power-up there should be one or more beeps of varying length. This could give you an indication
whether any of the hardware is damaged.
POST beep codes
(Most probably you can use the IBM BIOS codes - these are the most common, but it
depends on your system.)
I think in your case you'll hear one long beep followed by either two short beeps.
Also is there more than one video card? Make sure you plug it into the Primary graphics... (If there's more than one you might want to unplug one -
probably the one that's not onboard
Most often the cause of this problem is a fried Video Chip.