Received this computer for repair (free of course). When you power on, the fans (3) begin a few seconds later, and then 2-3 seconds later, they stop spinning. I disconnected everything except PSU, CPU and motherboard. Very dirty inside, so I cleaned and thinking the compound on the heatsink might be degraded, removed, cleaned and replaced it. Removed battery and cmos overnight. Still no change. I connected brand-new psu with twice the power, no change. My next step will be to order a new motherboard. (should I replace or upgrade? If I should upgrade, how do I find what will be sure to be compatible?) Can anyone suggest something else I've overlooked? I haven't removed the mobo from the case, so I guess it could be a short of some sort.
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Thank you so much. Yes, the fan is connected to the mobo but only spins for a second or 2. I've been trying to find a mobo, but only identifyer I can find is D33007 VG31. I know it is a Pentium 4 cpu, but sure do want to be sure about the mobo before I buy because the ONLY place I'm finding one is on EBay.
That would be an FIC VG31 D33007 motherboard. This Google search shows that there are plenty of them available:
http://www.google.com/sear
Unfortunately, I can't get into the FIC web site at the moment. It's here:
http://www.fic.com.tw/
Here are HP's Product Specifications for the Compaq Presario 6370US Desktop PC:
http://h10025.www1.hp.com/
You may need to start removing things to see what is causing this - it could be the motherboard, power supply, video card, or a short on the case. If you have extra parts, try starting up the system with as few things connected as possible - power supply, video card, and one stick of RAM. If it still doesn't boot, swap out one of the components and see what happens.
I've tried it with and WITHOUT ram. Same result. It isn't the video card---I removed it. I suppose it could be a short in the case, as I haven't taken the mobo out of the case.
It never reaches the point to need the ram or the video. I turn it on--a few seconds pass--the fans begin to spin---the fans begin to stop before they truly get started. The End. Nothing else happens, so I unplug the power again.
My next step I guess will be to replace the mobo----agree or disagree??
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by: CallandorPosted on 2007-10-27 at 16:46:48ID: 20163225
Check to see if the cpu fan is connected to the cpu fan header on the motherboard, and if the fan is spinning up when you power on.
As to what kind of motherboard would be compatible, the simplest solution is to replace it with an identical one. There is usually some white lettering on one of the sides of the motherboard that indicates what model it is. Otherwise, it is necessary that you identify what cpu you have, down to the speed. There may be some writing on the cpu itself that identifies it.