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HELP! HIS 5750 in CrossfireX on a P6T disabled?

post #1 of 10
Thread Starter 
Hi, I have a little problemo.

I got 2 HIS HD5750's in CrossfireX on a P6T motherboart. They are both in the top 2 PCI x16 slots on the board.

However, when i look at GPUZ and CCC they both say disabled. CCC says the second card is disabled. GPUZ just says that CrossfireX is disabled in general.

I checked both cards and their individual fans are running. The bridge is on the top connector and secure. power hooked up to both... everything seems ok from a physical/visual perspective...

so why is the second card disabled?
post #2 of 10
Did you try clicking enable crossfire in CCC?
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X79-GCN
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post #3 of 10
Thread Starter 
ok.... here is my ccc hardware information screen.. this is where i see the 2nd pcie card disabled. I had to scroll down alot so there are alot of picture attachments

If you look at my screen print of ccc, where do you find the "Enable CrossFire" checkbox? I've looked everywhere.




post #4 of 10
Click AMD crossfire Configeration under the performance tab. I bet you don't know they are clickable do you?
X79-GCN
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EK D5 Vario Top-X  Phobya G-Changer V2 360mm Phobya G-Changer V2 420mm Win 10 x64 Pro 
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X79-GCN
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Samsung 840 Pro 120GB EK Supremacy (CPU) NF F12's P/P (360 Rad)  NF A14's (420 Rad)  
CoolingCoolingCoolingCooling
XSPC Chrome Compression Fittings EK RES X3 150 Primochill PremoFlex Advanced LRT Clear 1/2 ID EK-FC (R9 290X) 
CoolingCoolingCoolingOS
EK D5 Vario Top-X  Phobya G-Changer V2 360mm Phobya G-Changer V2 420mm Win 10 x64 Pro 
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post #5 of 10
Thread Starter 
i've been there and i'll attach a screen shot once i get back home (I'm at work right now), but there isnt any checkboxes for enabling crossfire in there.
post #6 of 10
Thread Starter 
here is the screen shots

post #7 of 10
Thread Starter 
So... anyone with any other ideas?
post #8 of 10
Reinstall your drivers now. It's a software issue. Follow my guide in my sig. This should fix the issue.
X79-GCN
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Hard DriveCoolingCoolingCooling
Samsung 840 Pro 120GB EK Supremacy (CPU) NF F12's P/P (360 Rad)  NF A14's (420 Rad)  
CoolingCoolingCoolingCooling
XSPC Chrome Compression Fittings EK RES X3 150 Primochill PremoFlex Advanced LRT Clear 1/2 ID EK-FC (R9 290X) 
CoolingCoolingCoolingOS
EK D5 Vario Top-X  Phobya G-Changer V2 360mm Phobya G-Changer V2 420mm Win 10 x64 Pro 
MonitorKeyboardPowerCase
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X79-GCN
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Intel 3930K 4.5GHz HT GIGABYTE GA-X79-UP4 AMD R9-290X GEil Evo Potenza DDR3 2400MHz CL10 (4x4GB) 
Hard DriveCoolingCoolingCooling
Samsung 840 Pro 120GB EK Supremacy (CPU) NF F12's P/P (360 Rad)  NF A14's (420 Rad)  
CoolingCoolingCoolingCooling
XSPC Chrome Compression Fittings EK RES X3 150 Primochill PremoFlex Advanced LRT Clear 1/2 ID EK-FC (R9 290X) 
CoolingCoolingCoolingOS
EK D5 Vario Top-X  Phobya G-Changer V2 360mm Phobya G-Changer V2 420mm Win 10 x64 Pro 
MonitorKeyboardPowerCase
BenQ XR3501 35" Curved Corsair Vengeance K90 Seasonic X-1250 Gold (v2) Corsair 900D 
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Logitech G400s Senn HD 598 
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post #9 of 10
Thread Starter 
ok... things do look better... notice in the attached images that there seemed to be some errors during the installation of the new drivers.

However, GPUZ and CCC hardware are both indicating that there are now 2 Graphics cards working. Also, notice that i have a checkbox to enable crossfireX in the performance settings, when i didn't before.

All in all, it seems to be working. I had a monitor give out (no display) so i cant test with 2 monitors at the moment (I believe unrelated to this issue). However, i will get a second monitor and i will test later.




post #10 of 10
Thread Starter 
I recently got a new monitor to replace the one that stopped working and now i have both monitors running. CrossfireX seems to be working fine with 2 monitors.

i do have a question though. i have 2 HD5750's but only the plugs on the top gpu seem to work. if i plug anything in the bottom gpu there is no display.

the HD5750's i have have 3ports. 1 is DVi, 1 is HDMI and 1 is displayport.

if i plug a monitor into any of those plugs on the top HD5750 it works.

if i plug anything into any of the ports on the bottom HD5750 it doesnt work.

Am i missing something?
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