Asus P8Z77-V won't POST

Hello,
Last week, I got all the parts to build my new computer. Everything went smoothly except for the ram. I bought a four stick 32gb kit, and at least one of the dimms was bad. I could tell because it wouldn't POST, and the motherboard's red ram LED was lit. So I put in two sticks, and that was fine. (I bought another set of the same ram to replace. I had a copy of Windows 7 Home Premium 64bit to install, and found out recently that you need Pro to use 32gb of ram, so I ordered that.)
Then I started having BSOD problems, but that turned out to be a wonky usb game controller driver, and those problems went away.

A couple days go by, everything's fine. It turns on and off fine, plays games smoothly, etc. I successfully update the bios with Asus's AI suite software. Get current nvidia drivers. Windows is all updated and happy. Microsoft Security Essentials. All is good. It's plugged into a surge protector too.

Yesterday, I go to turn my computer on, and it doesn't POST. I hold the power button to shut it down. I open the case, and watch the red lights on the mobo. I press power again, and the CPU and RAM lights flash, like they should, but the rest don't light (VGA, Boot). All the fans spin up. The monitor doesn't wake. I notice that I have my two DIMMs in the wrong slots, so I move them into the correct positions. Success! And the whole day is spent playing Dishonored. No problems! Max settings, no hiccups. I had been monitoring my CPU and GPU temps when I was getting BSOD's playing games- CPU maxed around 40C, and GPU around 60C. Fine!

TODAY. It won't POST again! The new ram has arrived, so I say what the heck, and put all four sticks in. No good- the mobo still briefly lights CPU, then RAM, and nothing. I try pulling all but one stick. Same thing. I flash the CMOS. I press the MemOK! button- it flashes and the mobo resets itself a few times, like it should, but still no POST. I reseat power cables- 24pin and 8 pin, plus the two PCI express power cables in my video card. I reseat the video card. I pull ALL the ram out- this time the ram LED stays lit, like it should. I try the TPU switch, and the EPU switch. Nothing gets it to POST! Once, early in my testing, it did flash four LEDs in a row- ram, cpu, vga, and I swear the boot LED too- but then nothing. My monitor is plugged in, DVI plugged in, and speakers too. No POST, no BIOS, no Windows.

What is going on?
Thank you in advance!

System:
OS Microsoft Windows 7 Home Premium 64-bit 7601 Multiprocessor Free Service Pack 1
CPU Intel(R) Core(TM) i5-3570K CPU @ 3.40GHz
Motherboard ASUSTeK COMPUTER INC. P8Z77-V
Memory 16.00 GB
Graphics Card NVIDIA GeForce GTX 570
Sound Card (1) High Definition Audio Device (2) NVIDIA High Definitio
Screen Resolution 1920 x 1200 x 32 bits (4294967296 colors) @ 59 Hz
PSU OCZ ModXStream 700 watt
Cooling CoolerMaster Hyper 212 Evo
Hard Drives (1) SAMSUNG SSD 830 Series ATA Device (2) WDC WD1002FAEX-00Z3A0 ATA Device (3) WDC WD1502FAEX-007BA0 ATA Device (4) WDC WD5000AAKS-00UU3A0 ATA Device
Case: Antec Three Hundred Two

 

Hello!

Use just one stick of ram for testing if it doesn't post switch to another stick and try again,remove all add in cards but the video card,connect just one hard drive,no drives,check all your fans are spinning.

If you get it to post and running-

Run this program and post all your temperatures.

http://majorgeeks.com/SpeedFan_d337.html

With one stick installed run this program to test if the memory is stable.

http://www.majorgeeks.com/download1247.html

Follow this guide to enable a minidump to be written,after your computer has crashed post the minidump,you may also want to check C:windows\minidump for any PAST minidumps post those also or debug them.

http://forums.majorgeeks.com/showthread.php?p=1418737#post1418737


If your computer works fine with one 8gb stick and is stable use it like this for a couple of days,you won't notice any performance increase from 2 or more sticks while gaming or general use,use until your computer crashes again.

Post your BIOS version.

 

did you overclock anything on your pc? if you did try setting it back to factory default settings and since you said you flashed the bios (was it a beta version??) im asking because i used to have an asus mobo and i tried a beta version of a bios update and it wouldn't go past the splash screen until i wiped out the beta version bios and flashed it back to the last bios version that was good