pc doesn't start while motherboard and SMPS have power up.

Asus P5kpl-am epu desktop board
July 7, 2012 at 20:28:38
Specs: Windows 7, Dual core 2.8ghz
my PC suddenly stop (not shutdown) and not start for a few minutes. when i press the power button the led blinks but the PC not starts at all. when i shutting down whole power supply from UPS. after a minute it start and working for hours . i clearly said that there's no problem with my motherboard or HDD . is there 's any problem with the SMPS or power switch ... plz help me

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July 8, 2012 at 07:42:14
Have you tried to run the PC without the UPS in the mix?

Your Power supply fan may not be working or there may be too much dirt/dust inside of it. There may be a circuit in the power supply that trips when it is overheated. Compressed or canned air can blow out that stuff.

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