Why is my second monitor not working?

Posted by StampedeXV on Super User See other posts from Super User or by StampedeXV
Published on 2012-08-27T17:31:55Z Indexed on 2012/08/27 21:42 UTC
Read the original article Hit count: 311

Filed under:

graphics-card

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multiple-monitors

|

motherboard

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dual-monitor

Since I have my new computer, I have a very weird problem.

Facts:

New Computer:

Motherboard: ASRock Z77 Pro 3
Graphics-card: Asus1GB D5 X EN GTX560 DCII OC/2DI R
CPU: Intel i5-3570
Windows 7 64bit
500W beQuiet special edition (92% efficiency)
8GB 1333MHz DDR3 Corsair RAM (CL9)
Scythe Mugen 2
2 magnetic HDDs + 1 SDD
1 DVD-R

Old Computer:

Motherboard: Asus P55 something
Graphics-card: Asus1GB D5 X EN GTX560 DCII OC/2DI R
CPU: Intel i7-870
Windows 7 64bit
550W Corsair
8GB 1333MHz DDR3 Corsair RAM (CL9)
Scythe Mugen 3
2 magnetic HDDs + 1 SDD
1 DVD-R

On the old computer it worked fine with two monitors. Moving to the new (I took the same Graphics-card) it only works with one. The weird thing I mentioned is: not matter which one. But if I put both there, only one is available. There is no reaction at the start (where normally (at least if I remember correctly) the monitor shortly went from "standby" to "on").

Windows does not recognize a second monitor in the Device Manager.

I have the latest drivers for Motherboard and Graphics-card.
I have the latest BIOS drivers.

I am out of ideas.

Edit: completed computer setup

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