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Dual monitors won't work in Windows Server 2008 SP2 x64, got the latest BIOS and latest video drivers.

(GeForce 9400GT / Gigabyte GA-EP45-UD3P)

Any ideas?

more info: computer boots just fine, second monitor is not getting a signal. I can see the second monitor in Display Settings, but selecting it as a second monitor does nothing.

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a more detailed explanation of "won't work" would help a bit. Does the computer not post? does the monitor simply not receive a signal? – John T Aug 29 '09 at 4:16
up vote 1 down vote accepted

Without much explanation given I can only assume as to what the problem is. DVI cords tend to die every once in a while, they have caused me a lot of headaches in the past. You may want to check that first, a replacement is fairly cheap.

Some other users of 64-bit Windows Operating Systems have noticed this problem with the 9400GT as well. Apparently is has to do with Nvidia's drivers.

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My DVI cable is fine – roman m Aug 29 '09 at 4:53

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