Question about HP Computers & Internet
You don't say how you cleaned the motherboard. It only takes a small knock or static spark to kill electronics. PCI and I/O control is done by a chip on the motherboard and if this is fried you will need a new motherboard. The only way to check is with specialist hardware. take it to a computer repair specialist ( not PC world- too expensive) the cmos battery shouldn't have needed replacement after a maximum of 5 years. I have batteries that have lasted over 20 years. incidentally if you have replaced the cmos battery you would have to setup the bios again anyway.
Posted on Apr 04, 2011
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Posted on Jan 02, 2017
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it could be a faulty switch or the bad lead connections
test all power and data leads that attach to your hard drive IDE SATA
MOTHERBOARD TO THE HARD DRIVE make sure they have secure dust free connections and are not faulty if its a flat ribbon 40pin ide
this will be the first to fail
make sure all leads that are attached to your drives dvd\cd 3 1/2 inch floppy have secure dust free connections
a computer needs power and data to travel through every working device and continue its cycle and have a finishing point so any faulty leads will end up with a computer error
make sure the CPU has a secure dust free seating with thermal paste
make sure your ram modules are securely seated with no dust in the sockets also the Cmos battery has charge with no dust in the socket
on some motherboards cmos batteries are soldered in
hope this helps
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One bad lead can cause a computer to continue on a cycle or to shutdown or fail to detect your hard drive boot up
Test all leads that attach to your hard drive including electrical extensions,IDE,SATA
the leads from your ((motherboard to your hard drive)) make sure they have a secure dust free connections 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 or just replace them they could be faulty ?
even something as small as an electrical extension or a faulty fan lead can cause this problem
a computer needs all of the data and electrical current to travel through every working device and to have an end to be able work properly
motherboard and a hard drive any leads between them will fail before your motherboard or your hard drive if its a flat ribbon 40 pin type IDE replace it this will be the first to fail check all electrical extensions make sure they are securely seated even the cd/dvd floppy drives need to have current go through make sure these drives are working
make sure the CPU central processing unit has thermal paste and dust free and is securely seated
make sure your computer ram modules are securely seated with no dust in sockets also Cmos battery has charge with no dust in the socket some motherboards cmos batteries are soldered in
hope this helps you
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