Nothing is powering up on my system- please help

I tried the internal and external power buttons. here are the specs for my system.


DVD Drive: ASUS DRW-24B1ST/BLK/B/AS Black

Hard Drive: Seagate Barracuda ST31000524AS 1TB 7200 RPM ...

CPU: Intel Core i3-2120 Sandy Bridge 3.3GHz LGA 1155

PSU: SeaSonic M12II 520 Bronze 520W ATX12V

VGA: XFX Double D FX-787A-CDFC Radeon HD 7870

MOBO: ASRock Z77 Extreme4

Case: Raidmax Tornado ATX-238WU
3 answers Last reply
More about nothing powering system help
  1. Do you have ram in there?
  2. How many watts is that power supply?
  3. Try this stuff
    1) Update bios(if possible)
    http://www.tomshardware.com/forum/308518-30-update-bios
    2) Clear Cmos, do this if you cant start or have messed with the bios (don’t forget to unplug the computer from the wall and let it sit for few minutes, if you don’t have a jumper than remove the battery make sure the computer is unplugged and let it for about10 minutes before putting the battery back in)
    http://www.youtube.com/watch?v=Pdp_L5IxaNI
    3) Check your psu
    http://www.youtube.com/watch?v=5FWXgQSokF4
    4) Make sure your computer is hooked up correctly
    http://www.tomshardware.com/forum/261145-31-perform-steps-posting-post-boot-video-problems
    5) Run memtest(if possible)
    http://www.memtest.org/
    6) Run Burnintest (if possible)
    http://www.passmark.com/download/bit_download.htm
    7) If all else fails then try a gpu, Ram, or psu from another computer
    Hope this helped! :D

    have you been messing with any settings?
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