I have recently installed a FX8150 instead of my old Athlon II 640, and now my two Geforce
GTS 450 refuse to enable SLI, driver disable and screen go back to 800 x 600 resolution.
I suspected that the power hungry Dozer was pushing my power supply a bit over the limit so I upgraded to a Corsair AX1200, thinking that I then would be safe for more or less any upgrade I might think of later, (yes yes I know that 1200 W might be a bit over kill ), however it did not solve my SLI problem.
Do any of you know if there is something I need to set up in the Bios related to GPU's, when a FX CPU is installed compared to a Athlon ?
Tried out so far:
Checked all cables installed correctly and secure.
Reinstall Nvidia drivers 296.10 after cleaning up with Driver sweeper, no luck.
Replaced old PSU 750W with new 1200W no luck.
Installed old CPU again just to check if GPU's were OK, SLI working fine.
Installed FX8150, checked cables, SLI don't work again.
Both cards are present in Nvidia control Panel and windows device manager
Everything is running stock settings, except my gray hair gene that has gone into overdrive
Any suggestions are very welcome.
Thanks in advance
Mobo: CHVF BIOS 1102
PSU: Corsair AX1200
Cooling: Cooler master V6 2 x chassis fan 120mm
RAM: 2 x Corsair 4GB 1600
GPU: 2 x Geforce GTS 450 (Galaxy 2GB DDR5)
HDD: 2 x 2TB Seagate Baracuda (Raid0) Storage
SSD: 2 x 60GB OCZ Agility3 (RAID0) OS
OS: WIN 7 Ultimate 64