I have just made a new build, new power supply, new case, new motherboard (gigabyte Z68MA-D2h-B2), new cpu (intel i3 2100) will not go into BIOS or do anthing at all! When I press the power button, I simply get to see everything light on, then turn off with in 2-3 seconds and then repeat that oover and over again. Here is what I have tried:
I replaced the new motherboard for another new motherboard, tried to boot wih nothing pluged in, tried different ram, no ram, only one stick of ram, tried to boot outside the case (sat the motherboard in the anti-static wrapt it came in so I would see if maybe it was a short with the case touching the motherboard, I tried a different power supply (known good one) I tried adding a fan ( the case comes with one but does not plug into the board) the one that I tried is a small fan with 3 pin holes only, leaving one open (IDK if thats a problem) . I have the 2 ATX power cables plugged in (one large one and one 4 hole one in the same ATX socket in addition to the regular 4 hole 12 v that stands alone on the other side of the board) i have tried an PCI video card and plugged my monitor in there just incase I can see something in the screen thru it. Again, no video, no beeps, no antying expect everything turns on, then off and loops until I unplug it from the power supply. The power button does not do anythhing except turn it on, I cant use it to turn it off or stop the power loop. The only cable plugged in from the case is the power button.