Hi hope someone can help me fix this extremely frustrating PC problem. Please excuse my lack of PC know-how, but I will try to explain my problem as best I can.
For some time now, our main desk-top PC has been crashing out randomly, and displaying a black screen. "No Signal" appears on the monitor, the tower still runs and fans are running. The only way to recover the PC was to pull the plug and re-start.
I have investigated the problem on and off for more than a year. I have checked all connections, etc, and at one point fitted new RAM, because I read that that can cause black screening. I also removed and re-fitter the graphics card, checking the slot for dust.
What I found is that after taking the machine loose, the PC would then sometimes run for several weeks without crashing.
I went through the same procedure yesterday, and removed and re-fitted the graphics card. The machine got as far as the blue log-in screen and then crashed. Now it has got worse, so that it goes to black screen immediately after the RAM is displayed, every time!
I suspect the graphics card (the PC originally ran on on-board graphics) If I remove the graphics card, and use the old graphics connector, the monitor just displays vertical stripes! How can I get back to my on-board graphics as a test?
When I boot the machine, I get a single "beep", RAM is displayed, then BLACK!
Please help before I go completely insane1