Need some help please guys!!

[mo3]

So heres the deal, I just got all my parts this morning and i was totally pumped to get this puppy going...So i start building, while wearing an ankle grounder, and as soon as im done my tiring and hard work, I flick it on and LEDs light up, fans run...for about a split second or so. I thought maybe I didn't plug something in correctly or I was missing something. I have been trying and playing around with everything for about 3 hours now and still im scracthing my head. Mind you all this is my first build so i probably did something extremely stupid or obvious and I didn't even realize it. My specs are:
-Intel quad core Q6600
-Asus P5K-E-WIFI-AP
-OCZ 4GB Kit DDR2 PC2-6400 Reaper HPC C4 Edition
-Antec 900 chassis
-XFX Geforce 8800GT Alpha Dog Edition XXX
-LG Disk drive
-500GB Seagate SATAII 16mb cache
-Arctic cooler pro 7
-OCZ GameXStream 600W Power Supply

Please help me, I really wanna get this thing going and play COD4, crysis, etc., etc...

 

[akhilles]

If the pc powers on for a split second & powers off immediately, I would suspect the CPU cooler. Double check the cpu fan connection & heatsink install. Freezer is a breeze to install. I don't think you made a mistake. Maybe wrong polarity of the cpu fan cable:

http://www.intel.com/support/motherboards/desktop/sb/cs-012074.htm

Pins:
1 = red
2 = black
3 = yellow
4 = N/A

Make sure the 8-pin cpu, 24-pin mobo & 6-pin gpu power cables are plugged in:

http://www.xbitlabs.com/images/mainboards/asus-p5k/p3.jpg

 

[cfvh600]

Also check that your mobo is properly mounted using the stand-offs and that no parts of the motherboard are touching the case where it shouldn't.

 

[mo3]

Alright will do, going to check all those suggestions, thanks guys. Will post a response as soon as i see what happens.

 

[Loser777]

I would just guess you have a short caused by a screw or something somewhere. Mobo detects this and shuts off.

 

[mdalli]

CPU cooler? Very unlikely if we are truly talking about a "split second".

Standard troubleshooting technique: you must isolate the fault. Unplug your hard drive, unplug floppy, unplug a stick of RAM, and leave only the bare-bones necessary to POST. If the MB has onboard video, pull out the video card too.

Mainboard-to-ground short is definitely possible. Bad power supply, bad CPU, bad RAM are all possible, floppy connected incorrectly (and for that matter, why did you put a floppy in??).