So i am with this 34 problem wagon now too. After i changed my video card from gtx 570 to gtx 680, i get random no posts / no signal to monitor with debug led 34 and boot device led on. It does start just fine after hitting a reset. Gpu is fine, i've played games many many hours with no problems at all. Just thought to give a heads up here and if there is something that i am missing. I've experienced it two times in 2 weeks. This can't be a driver issue?
Here is my specs:
Maximus IV Extreme-Z
i7 2600k
PNY GTX 680
Corsair AX850
Asus DRW-24B3ST DVD-RW
1TB Samsung SATA II
Corsair Vengeance 8gb cl9 Low Profile Dimms
Samsung 2233rz 120hz with DVI-D Cable
Razer Tarantula Keyboard '1000hz'
Razer Abyssus mouse '1000hz'
Maximus IV Extreme-Z @ P67 Sabertooth (Great Mobo)
i7 2600k @ 4.5ghz @ i5 2500k stock
PNY GTX 680 @ MSI GTX 670 PE/OC 1215 Stock Boost
Corsair AX850 @ 850TX
Asus 'Sata' DVD-RW
Intel 330 120gb ssd @ Pny 120gb ssd @ Intel 330 60gb ssd
1x1TB Samsung SATA III 6GB/S @ 3x2TB Western Digital Green 6GB/s (SATA III)
Corsair Vengeance 8gb cl9 Low Profile Dimms
Dell U2412M 1920x1200 60hz @ Samsung 2233rz 1680x1050 120hz
Fractal Design Define XL @ Corsair Obisidian 550D