Asus 787-C (Bios Ver 2004)
32 GB 2133 DDR3 (4x8GB)
Pioneer BDXL Blueray burner
Samsung SSD 840 EVO 500GB
MSI GTX 780 Twin Frozr OC
Windows 7 Ult 64bit
Samsung S24C650 24" Monitor connected via DVI
Samsung SyncMaster 19" Monitor connected via DVI
The computer has worked fine for a few months.
Now for some reason, the computer will not boot with both monitors plugged in.
When I start the computer with both monitors plugged in: Both monitors screen flash up "Digital" then go black. Blue light on 24" turns on continuously as if connected normally. Blue light on 19" monitor flashes with black screen (I think small monitor behaved this way previously until windows started).
There is a single beep as if post has been successful and then nothing. No change in the monitors from that point and no hard disk light.
I am not able to enter bios and if I hit the off switch the computer turns off instantly.
If I boot with only one monitor (have tried with both monitors plugged in to both DVI plugs on the GTX and in the DVI plug on the motherboard) the machine boots normally.
If I boot with the small monitor disconnected and then plug it once windows starts it is detected straight away and reverts to my normal setup.
Things I have tried.
Have stripped it down and reseated video card and ram.
Booted with no drives plugged in.
Booted with a single stick of RAM
Cleared cmos and rebooted.
In all cases boots normally with 1 monitor (either monitor plugged in anywhere) and won't boot with 2.