I booted up my gaming computer and the monitor does not show the computer screen. When I check source it continually switches from analog to digital. I have used this computer fine for over a year. The inside is pretty dusty so I am trying to clean it now. I have read that it can be anything from a graphic card problem to a ram problem. How can I check and find this out?
>>335993
Does your computer have a beeper?
Because most hardware defects should then be called via beep codes by the BIOS.
Or is there another way it can communicate with you, like LEDs it could flash in rhythm?
First thing with something like this would be to plug the monitor into another source to make sure the monitor itself is not damaged. Then indeed it can be pretty much everything, from damaged contacts in the plug to a destroyed graphics card or processor. No ther way than testing one for one.
>>336001
no beepers that I know of. So I need to test one each? Damn need to find extra parts
>>335993
Exact same thing happened to me two days ago.
>turn it off and unplug from mains.
>remove side panel.
>remove graphics card
>While you're in there remove fan from cpu heatsink and clean all that crap out, replace fan.
>do same to gpu fan/s
>find a way to generally clean up the fluff in the interior (not a domestic vacuum)(not a static prone cloth).
>connect monitor to mobo graphics output
>plug in, turn on, report back
>>336130
ok thank you. Did it fix your problem?
>>336134
well that's a basic troubleshooting step plus some unrelated-but-may-as-well-do-it-while-youre-in-there cleaning
troubleshooting is
-disconnect gpu, plug monitor into port on mobo
-if the monitor didn't work before but does now, the problem was caused by your graphics card (and you probably need a new one)
-if the monitor still doesn't work then the problem is with the cable or the monitor itself. the graphics card is probably fine
>>336123
Not like this with new parts, you put them in one for one until the start fails.
RAM is the most important part of a PC, so put in just the RAM and remove everything else and see if it seems to be running like that until after BIOS, then add one more component one after another until it fails. Or get a cheap beeper so you can hear yourr BIOS. Your PC surely has an integrated graphics unit, and if it has a graphics card am I right that the monitor is plugged in through its output? Then remove the graphics card and plug it in on the motherboard's output, then if your card is damaged you should have a picture agan as now the integrated graphics unit sends the picture.
>>336134
Yes, it did. But as >>336156 says it's basic troubleshooting. A first step.
So it was probably just removing and reinstalling the graphics card that "fixed" the problem. Bad connections can develop over time, it never hurts to just disassemble and rebuild (as long as you don't break something in the process, that is).