Having problems with your Compaq Presario 5400US PC Desktop ?

The power turns on but it doesn't do anythigng else


Answers :

It can be due to many factor

1.RAM not decting by Mainboard.
     remove the RAM & clean it's legs with a white paper and place it again & try.

2.SMPS failure
    Your power supply is not able to give the requirement of the PC due to mal-functioning.Replace the power supply & check.

3. BIOS failure

   Reset the PC BiOS to default setting by removing the CMOS battery.Check it again.

4.Motherboard failure

 Motherboard may have failed due to power spurge or spike.
Remove your processor & RAM and place it on another motherboard and check if processor & RAM are working or not.If they are working then it's motherboard fault.
replace the motherboard.
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