7950 Crossfire - Extend Desktop to Two Monitors using BOTH cards?

wbynum

Senior member
Jul 14, 2005
302
0
0
If I have two 7950's connected with the crossfire bridge, can I connect one monitor to each card and extended the desktop across monitors? Some people have said yes and some no. Anyone tried it? Seems like it would work to me, but I didn't know if the crossfire bridge connected, even in 2d, would cause issues.

Note that I do not want to game across the monitors. I just want to game in cross fire mode on the monitor hooked up to the primary card. Reason I am asking about this odd request is the two monitors are the Korean 2560x1440 displays with one dual link dvi port per monitor. Instead of paying $70 for a DP to Dual Link DVI converter and using my existing 7950 for both monitors, I was thinking about going crossfire and using each card for 2d with the normal extended desktop across the monitors.
 

wbynum

Senior member
Jul 14, 2005
302
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0
Answering my own question here. Got my second 7950 in. You can run a monitor to each card but crossfire has to be disable in CCC. The crossfire bridge can still be connected. If gaming, you just re-enable crossfire. With all that said, I like to have my 2nd monitor going with a browser, IRC, etc while gaming. So I went ahead and ordered the $70 dp to dvi adapter from monoprice.
 

Zargon

Lifer
Nov 3, 2009
12,218
2
76
Answering my own question here. Got my second 7950 in. You can run a monitor to each card but crossfire has to be disable in CCC. The crossfire bridge can still be connected. If gaming, you just re-enable crossfire. With all that said, I like to have my 2nd monitor going with a browser, IRC, etc while gaming. So I went ahead and ordered the $70 dp to dvi adapter from monoprice.

did you need DVI-Dual Link?

if not, you wasted $$$, active adapters to HDMI, DVI-D SL and vga are 20-30 bucks
 

KingFatty

Diamond Member
Dec 29, 2010
3,034
1
81
I believe it's impossible to run 2560x1440 resolution using single-link. So to run his display(s), he needs to use a dual-link adapter to feed so many pixels.