Uninstalled all ATI drivers
Took out the HD4870X2
Did springcleaning shadowdevices
In bios, set 2nd and 3d PCIE slots to 16x - 1x
Put in one HD5870
Reinstalled DXAug2009
Installed Cat 10.1 and shut down
Put in second HD5870
My Desktop looked like normal (16001200/85Hz), but:
Indeed (as i've been reading on other fora): my Eizo T965 CRT has no longer higher than 1600x1200/85Hz resolution offered by the HD5xxx series of cards.
On one hand: i don't care, as that is the resolution i had it at most of the times. On the other hand: i want all options that this monitor supports available: i might want to game at 1920×1200 now with these cards.
Anyways,
I tried NFS:Shift but it would not launch.
Installed ATI 8.70 beta 13 Jan
I uninstalled/reinstalled the game+patch1.2: no difference, it refused.
Also, Heaven benchmark would not launch instead an error, having to do with "could not match resolutions".
Went to Display settings. > Advanced refused to launch.
I opened CCC > Display Properties > disabled EDID. Screen went to 60Hz! It also resulted in a new tab: "Image Scaling"; i checked the box "Enable GPU Scaling".
That was it: back to full screen 1600×1200/85Hz.\
Good thing that i have saved the registry key for all display options during HD4870X2. Later i might want to add them back.
NFS:Shift now launched without problem!
The Graphics Options > Resolution identical to what i previously had, has now a different number: 195.
The crossfire bug of flickering head- and taillights and start/finish lights still exists also on HD5870 crossfire.

When i disable crossfire, the Graphics Options "code" in NFS:Shift automatically changes to "Resolution 63"
On a single HD5870, the performance is shocking, bad... untill i also disable Cat AI in CCC, of course... 95 ~110 fps.






....

Yes of course, i didn't change anything, so yes. But i sense it means to ask if i want to keep the CHANGES. So: No it is, however i didn't change anything maybe the program did something and i want my cards to stay completely clean.