Topic Title: Dual HD6870's and 4 screens
Topic Summary: 2 cards, 4 screens, only 3 will work
Created On: 06/12/2014 09:31 PM
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 06/12/2014 09:31 PM
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Joined: 06/12/2014

Hardware: A75-UD4H mobo, 2 HD6870 cards, 16gb Ram, Windows 7.


Issue: 2 cards installed, top card has both DVI populated with DVI cables to DVI inputs on 2 of my screens. Lower card has both DVI populated with DVI cables to DVI inputs on 2 of my other screens. the top DVI does not put out a signal.


Tried fix's: reinstall everything; no help. New cables; no help. Diffrent screen's; no help. Do screens and cables work on other ports; yes


What i know: the top DVI is working and can see whats connected to it because it see's the model and brand of screen. It cause's the OS to think there is a screen connected and gives it a desktop, but the screen or any others plugged into that DVI never leave power save mode.

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