crossfire does not work

W

wyzman

n00b
Joined
Dec 19, 2006
Messages
3
I am running Vista Business x64 and have two ati 4850's in my motherboard.

when the jumpers on the biostar TP45 hp motherboard are not setup for crossfire the master card works fine. I then change the jumpers to switch to crossfire mode and have to move my monitor cable to the slave card.

But only one card still shows up in device manager and crossfire is still not an option in the ati catalyst control center.

Is there something I am doing wrong in order for my system to recognize the second card?
 
Yes, i bought a new one which im useing as the main card and the second one came out of my old pc. but like I said they both in the box depending on if i turn on crossfire mode or not on the mother board as i have to switch the monitor card around.
 
Well as it turns out there are 8 huge red jumpers that need to be switched and one very small black jumper that needs to be switched also. I didnt see the 9th Jumper.

Thanks for your help.
 
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