Join Date: Apr 2015
Location: South-West England
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Tried building a new rig today and failed.
Asus P9X79 Pro
Seasonic Platinum 1050w PSU
So as per the thread title, when I power up, the fans spin for about half a second, then the board powers off completely. No VGA, no POST, no warning beeps, just on, fan spins, then off.
Then about 3 seconds later it comes back on again, same thing, turns back off again.
This loop is endless.
Here's what I've tried
- Reseated CPU
- Reseated all power cables including CPU 12 pin: Firmly, over and over.
- No case, cardboard 'test bench'
- New lithium battery
- Different PSU
- 1 stick of RAM
- No GPU, No RAM, just the CPU and board.
- Flash to new BIOS using USB (incredible you can do this without powering on!) Shame it didn't help.
^ All of these things give the same result; comes on, goes off, comes on goes off, no post, no hint, no hope.
Has anybody got any ideas?