System powers on but no video signal

[samuraijake]

After coming home from college I took my air compressor to my dust-littered case as I do every year. Long story short, I start the system and the system powers on, the drives spin up, but no video signal to the monitor. I swapped video cards (AGP) and still nothing. I disconnected the power and removed the CMOS battery for a few hours, powered on, and no luck.

Intel D865GBF Motherboard
P4 3.0 Ghz on 800 Mhz FSB
512 MB Kingston PC3200 RAM
ATI All-in-Wonder 9600 (Also tested a GeForce4 Ti4200)
Dual-booting XP Pro and Debian

Any ideas would be greatly appreciated.

 

[CheesePoofs]

Does the system POST (normally a beep)?

 

[samuraijake]

Yep. It POSTs.

 

[Bar81]

Do you have a PCI video card to test with?

 

[samuraijake]

No PCI video card.

 

[Bar81]

Alright, did you try to pull out all cards/disconnect everything but the video card and hard drive and see if it works? Alternatively, maybe another monitor?

 

[samuraijake]

I removed all the peripheral cards (sound, modem, ethernet, extra ide controller) and the same results. I normally run dual monitors on the All-in-Wonder; I have tried both, one, the other, and the same on another video card. Same results: everything powers up, no video signal.

 

[Bar81]

Does the hard drive start loading? If not, it sounds like your mobo might be dead. When I've gotten dead mobos (most recently an Asus K8V-E Deluxe) it would exhibit the same behavior.

 

[samuraijake]

I can hear the HDD spinning and the needles seeking. When I try to reproduce the proper keystrokes at LILO to load XP in order to see if XP boots and produces audio, nothing happens. Assuming it is dead, any idea what could have caused the mobo failure?

 

[Bar81]

It could be a lot of things. When you were cleaning the compressed air might of dislodged an already weakened solder point or you might have accidentally touched the mobo and been statically charged or something just died and it's a coincidence is all.

 

[samuraijake]

Thanks for your help, Bar.

 

[Bar81]

np, just sorry I couldn't be of more help. good luck.