Blinking lights and no POST after clear CMOS

ajblackie

Honorable
Mar 19, 2012
44
0
10,530
Got a puzzle I could sure use some help on. Hopefully someone here has an idea to what might be causing this as I am struggling to find anything about it anywhere.

Just finished building This system (core specs):

Asus Rampage V Extreme x99
Intel i7-5930k
Corsair Dominator Platinum 4x8GB 2666 MHz DDR4
Asus GTX 980 Strix x3
EVGA SuperNova 1300W 80 Plus Gold
Samsung 840 Evo 250GB SSD

It's all acrylic water cooled so I test booted everything before building the loop and it all seemed to work fine with a quick boot to BIOS. After getting it all put together it booted up first shot and I thought it was all good to go. Installed drivers and updates. Wanted to overclock it a little bit so started bumping things up incrementally and running real bench (as I've heard the asus x99 boards don't like prime95) and things were going smooth. Overclock eventually hit an unstable point so I hit the clear CMOS to start again and after doing so all the lights on the motherboard and GPUs just blink very briefly. Even after turning off power, pulling the plug, and holding the power button the lights continue to blink for a minute or so (it varies). I tried a different PSU, tried a different set of cables, different RAM configs, unplugged all non necessary components, latest BIOS, and a new CMOS battery. After a while (sometimes a couple hours) it corrects itself, will boot up, and I can run stress tests and benchmarks and everything seems to be fine. But every time I hit the clear CMOS button it craps out and it starts all over. Anything I could be missing before tearing it all down to try another CPU/motherboard? I'd love to avoid doing that if possible.

Thanks!
 
CMOS-Reset-Button: On newer mainboards you'll find CMOS-Reset-Button. The CMOS-Reset-Button works like a normal CMOS-Reset-Jumper.

Turn OFF the computer.
Unplug the power cord.

Never turn on the motherboard during a CMOS-Reset.
It could cause a short circuit which would damage your motherboard.