Had my Asus P8Z77-V motherboard die on me after 2 weeks of use last week. Got my replacement yesterday.
It started fine. But I had no display. I fiddled around with the sata ports and it booted up. All my previous data from both my ssd and hdd were there. But after 5 mins of use I got a windows error and my PC shut down. I restarted everything, it was good for 2 minutes, then windows error again.
Now I get no display again. I've tried, unplugging everything but the cpu and ram, still no display using onboard display. I've cleared cmos. The monitor is fine.
More aboutplease help display motherboard
Could be short in one of your power supply wires or internally. I would replace it or look for a used one on craigslist. I use antec and ocz.
Its not a short as I've tried it outside the case on a cardboard box. My power supply is an antec 750w true power.
Could be a bad batch of boards from asus; if you rma again, I would go with a different brand and sell the rma replacement. I use biostar and msi, but my main board is an asus h61, working flawlessly so far.
I just tried my RAM (2 x 4GB corsair vengeance) in another older DDR3 system and it did not boot. I had RAM error beep codes. But, when I tried the RAM from my older system in this computer, I had exacly the same problem.