New computer Wont Boot! help!

Ok, So after saving some money for a few months i decided to build my own computer before i move out rather then buy a dell or something<
Specs
Antec Twelve Hundred Case
Asus P6x58D Premium MoBo
Ultra X4 1050W PSU
Corsair Dominator i7 6GB DDR3 Tri Channel
Intel Core i7 920
Seagate Barracuda 640GB (2)
Samsung DVD Burner
XFX Radeon HD 5850 1gb
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  1. You might find that this will solve your problem,....of course you have to do a little work. :)


    http://www.tomshardware.co.uk/forum/261145-13-perform-steps-posting-boot-video-problems
  2. After assembly errors (which the sticky does a good job of isolating), the usual suspect is the PSU.

    The best way to check a PSU at home:
    Try to borrow a known good PSU of similar rating. If you cannot do that, borrow a DMM to measure the voltages. Measure between the colored wires and either chassis ground or the black wires. Yellow wires should be 12 volts. Red wires: +5 volts, orange wires: +3.3 volts, blue wire : -12 volts, violet wire: 5 volts always on. Tolerances are +/- 5% except for the -12 volts which is +/- 10%.

    The gray wire is really important. It should go from 0 to +5 volts when you turn the PSU on with the case switch. CPU needs this signal to boot.

    You can turn on the PSU by completely disconnecting the PSU and using a paperclip or jumper wire to short the green wire to one of the neighboring black wires.
    http://www.youtube.com/watch?v=5FWXgQSokF4&feature=youtube_gdata

    This checks the PSU under no load conditions, so it is not completely reliable. But if it can not pass this, it is dead. Then repeat the checks with the PSU plugged into the computer to put a load on the PSU.
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