this morning after 1.5 hours cleaning, installing, removing, installing several ATI drivers versions and flavours, i finally managed to get 12.4 working stable on cross fire + eyefinity
before 12.4 will simply perform like crap when cross fire was enabled, so no idea what i did or did not do, but now it's working fine.
everytime CCC goes crazy on me i just use ATIman uninstaller, and fixes everything for me.
okay maybe i do know the difference after all
this time, after a full ATIman clean up, whenever a new driver i tested and doesn't work, instead of uninstalling everything! and installing a new version of everything, i kept the latest CCC, and only replaced the drivers via ATI own install manager
last night i had all kind of funky issues with several versions of the drivers causing 1 of my 6 monitor to show black and white only, and it will not go back to normal until i used ATI man uninstaller to clean up whatever was set wrong by the ATI drivers
keeping my fingers crossed tonight, and revert my card back to stock speed 1000 instead of reference speed 925 to see if it's stable with these 12.4 drivers
between last night and this morning i tried all kind of combination with
RC11 (good, but missing settings options),
official 11.12, (no good)
12.1 (not even detecting 7970, the .inf file confirms the same)
ASUS drivers that came with card (crashes at some benches)
newer ASUS drivers from the website (crashes at some benches)
12.3 (stable but poor performance) (previous try crashed a lot when i just got the 7970)
12.4 beta (almost perfect, but was not playing well with eyefinity)
12.4 (crashed like there's no tomorrow, impossible to use crossfire), on the 2nd try (today) now it's 'magically" working the way it's supposed to
I guess after doing all that stuff, i probably might have compiled all the missing stuff from all the previous versions of the drivers to make 12.4 work properly LMAO!