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Hp a705w desktop (pc on fan on but no signal to other locations)

Got from friend,turn power on the 2 fans is running but no signal to monitor,mouse,keyboard,usb,etc.only the dvd rom work.There are no beeping to tell something are missing when turn on.What should be the problems?DEAD CPU or MOTHERBOARD.Some advice please,thank you.Patrick.
P.S I unseat & install the ram, clean all the dust out, take out the motherboard to inspected but see nothing suspecious,and install back on.Nothing happen only the 2 fans are running.

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  • Master
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Motherboard is broke downs. not responding even beeps. mostly we dont see anything suspecious when we look at the mainboard. we are talking about micrro technology.

take the service to get assist.

have a good evening.

Posted on May 28, 2009

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  • HP Master
  • 4,806 Answers

Hi there.
The best way to check if the processor is at fault is turn the machine on for a couple of minutes, then turn it off.
Disconnect the CPU fan and heatsink and feel the processor, if its warm or hot then the processor is fine.
In most cases its the bios chip which is down so if you can clear the CMOS or remove the power cord from the back and take the motherboard battery out for half an hour.
See if that gets you anywhere.

Good luck and thanks for choosing FixYa!!

Posted on May 28, 2009

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Posted on Jan 02, 2017

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f8ad739.jpg


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