Question about HP Compaq Motherboard
My Compaq Presario 1800 stopped powering on at all except for a rattling noise on the floppy that happens the same with power supply OR battery. After a full disassembly, I get this same rattling (that sounds very much like "motor boating" as it is commonly referred to in electronics) when I connect the motherboard with just the tiny PCB that holds the power-on button & other Compaq buttons. Does anyone now of such a problem? Basically, I would like to make sure that such a noise is indeeded abnormal in my test configuration (motherboard with just the buttons PCB plugged). I intend to try to debug the power supply (faulty capacitor) and if that fails, maybe buy a spare motherboard. Any comment is welcome.
Posted by Anonymous on
Could be the cpu fan?
Posted on Jun 22, 2007
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Test your PSU or replace it if your power supply units fan
is not working your PSU is faulty
One bad lead can cause a computer to continue on a cycle or
to shutdown or fail to detect your hard drive
Test all leads that attach to your hard drive including electrical
the leads from your
"((motherboard to your hard drive))" make sure they have a secure connection and are not faulty or
just replace them they could be faulty
make sure all leads that are attached to your drives dvd\cd 3 1/2 inch floppy have secure connections and are not faulty even the electical extensions or just replace them they could be faulty a computer needs its connections to continue its cycle and have an end so any faulty leads will end up with a computer error
hope this helps
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