I received my new XPS 630i with dual 3870s last week. Is there a way to enable crossfire with 64 bit Windows? or is this PC going back to Dell? :) I've tried all the latest firmwares, drivers but am having no luck so far. Any help would be greatly appreciated.
Dude im having the same problem dell told me to wait for a windows7 service pack... im just going back to vista till they fix this i cant play my games with 1 card
believe me ive tried everything to get this to work
I just spent few hours trying to get crossfire working and managed to get it working. Only problem is that after I updated the driver, CCC (Catalyst Control Center) no longer able to open.
What I did:
1. Remove both card drivers that Windows 7 installed.
2. Install Vista version of HD 3870 driver (can be found on Driver & Download section).
3. Check the crossfire in CCC
4. Restart the PC
5. be sure the crossfire is still checked - update the drivers (not CCC!) in Device Manager (just right+click ATI Radeon HD 3870)
6. Restart the PC
That's when you cannot get CCC back up, but the crossfire seems to work. I checked my iRacing's FPS and it's currently at 80's FPS instead of 30's to 40's. I cannot guarantee it will work on your PC…
I guess this is the best temporary solution I can take – just till Windows 7 Service Package 1 releases as elpuertosaurus mentioned above.
(By the way, I have XPS 630i with Windows 7 Ultimate 32-bit)