New build repeat powers on and off every 2-3 secs

[tallkooljp]

I just finished a new build and trying to boot for the first time. Its doing something strange. I turn it on and it begins to start for about 2-3 secs, then it turns off and repeats this non stop. Never posting or booting. Power lights and fans come on for those 3 secs then off again. No beeps or nothing, just this same cycle on and off. Had six sticks of memory in it and went down to 1 and same thing. Had two video cards in it, and went down to one and same thing. Any ideas?

Intel 975 cpu i7
gigabyte Ex-58 extreme
BFG 295 video card

 

[hunter315]

Please post FULL system specs, link to the PSU please. Also go through this checklist, number 2 is the most common
http://www.tomshardware.com/forum/261145-31-read-posting-boot-problems

 

[tallkooljp]

corsair 1000watt HW1000w psu
Kingston khx14400d3/1g and on the supported memory list for the motherboard 1gb/ stick 1800MHz DDR3 Non-ECC Low Latency CL8

 

[jsc]

Omitting the CPU power connector would not cause the endless reboot cycle. System would just try to come up once and just sit there.

More likely, there's a short somewhere. Look especially close at #3 and #16, then work through the troubleshooting ideas after the checklist.