Computer won't boot:(

[Azureth]

No lights, beeps or anythng. I made sure to turn the PSU switch on and tried other plugs but it won't even turn on. Specs:

GIGABYTE GA-MA790XT-UD4P

CORSAIR CMPSU-650TX

AMD Phenom II X4 945

G.SKILL 4GB (2 x 2GB) 240-Pin DDR3 SDRAM DDR3 1333 (PC3 10666)

8800GTS.

 

[lostnkonfused]

First check the power switch cable for the case and see if it is hooked up properly to the motherboard.

The power supply would be the first component to check (also make sure you have the right voltage setting on the back switch for where you live: 115V for AC and 240V for DC). Try swapping out the power supply you're using with another and see if it works. If it still doesn't work, I suspect the motherboard may be shorting out in the case somewhere. Take the motherboard out of the case to test and see if it works with everything hooked up.

 

[Azureth]

what are the bare essentials needed to test

 

[engiNURD]

The Basic Troubleshooting Guide Sticky thread has the procedures on a bare essentials barebone bench test.