R9 280X Crossfire issue (Code 43)

Conceptrage

Honorable
Nov 30, 2013
3
0
10,510
Specs:
4770k
Z87-Pro Mobo (supports sli + Crossfire)
Corsair Rm850 PSU
16gb (8x2) Crucial memory
Windows 7 64bit Ultimate edition

Just picked up two R9 280x's. Tried each one independently works no problem. Each one games no problems. Now when two are installed and the crossfire bridge is connected it doesn't recognize the second card. In device manager it shows Code 43 on the card. Cards look fine and im sure im providing enough power to both. Kind of lost. Help :)

If there is any other information i can provide please let me know. Thank you again
 

Conceptrage

Honorable
Nov 30, 2013
3
0
10,510
just tried another crossfire bridge same problem. When i first install the driver it detects both cards and lets me enable crossfire mode. After 1 reboot the crossfire drop down menu disappears. Then device manager shows code 43 for one card. :(