Question about Computers & Internet
I turned off my HP desktop computer and it will not start up again. It is only 1 1/2 years old. I have unplugged all connections and reconnected power, etc. still the computer will not come on.
When computer start then message display top rear fan has been blocked,
Posted on Jul 31, 2008
If computer is not powering on then open u r cpu and check the SMPS i.e Switch mode power supply which converts AC to DC it gives a output of 5v & 12v in that the 20 pin or 24 pin connector which is connected to the mother board remove that and short the wires Green and Black and make sure to remove all the power connectors i.e,hard disk,Cdrom or cd writer or DVD writer or any other device and one more connecto which is a four pin connector which is connected to the mother board please remove and test the 20 or 24 pin connector by shorting green and black and behind the smps u have a power cord of ac 220v just plug it and switch on if smps fan rotates that means it's fine then the problem willbe on the mother board just try this
Posted on Jul 30, 2008
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Posted on Jan 02, 2017
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