Computer problems :(

Having a weird problem with my computer this morning. I turned it on and it powered up, but no display appeared on either of the two monitors. They work because I switched them to tv mode and the signal showed. The fans come on and light up.

The worrying thing is that when I press the power button, it turns the computer off immediately. Normally you have to hold the power button for a few seconds before the computer turns off.

I tried putting the windows disc in the drive to see if it would boot that but it doesnt.

I am going out in a few minutes so Ill leave the psu power switch off until I get back and the monitors unplugged, to see if that helps.

Other than that I cant think of other remedies.

Do you get past the Power On Self Test (POST)?

I cant tell because theres no display. But Im suspecting not because of the ability to press power button off instantly.

What's the chance that the power button/switch has decided to go on the blink?

hmm could be that i guess. Unplug its connector from the motherboard?

no beep. although when i tried holding the power button, i turned it off but when i turned back on it beeped with 3 continuous beeps. However the next time i turned it on there were no beeps.

Sounds like a hardware issue. First check that all cards are properly seated, than start looking at connections.

You could also try testing your power supply if you feel comfortable or have a powere supply testor - Power Supply Test - How Do I Test the Power Supply in My Computer? - PSU Test

Ive done the easier thing by taking it back to the repair shop I took it last time. The technician did a quick check while I waited and seemed to think it might be the motherboard. Although he did no real diagnosis. Hopefully Ill learn tomorrow what the cause is. Im hoping its the motherboard, then I have a good excuse to upgrade to I5 or I7. I really hope its not something like the graphics card or psu then I wont be able to do the upgrade I wanted.

That's even better. Why mess about on something that's still under warranty.

Good luck.