hi m8 i can tell u the trippehead2go digitsal with 2x 4870 in crossfire works i have done it myself.
and now i have bought a ati4870x2 and a 4870 in xfire that works as well.
just make sure u plug the th2go into the main card slot 2 the 1 away from the case. hope this helps.
Thanks.. I am getting another Powercolor to crossfire them.
Update maybe it will help someone:
My problem was weird... I could get the system to boot with 1 of the Sapphires as a slave and the Powercolor as master.. :S
The 2 Sapphires would not boot with the trippy plugged in, crossfire or singularly in any slot..
Got nowhere with Sapphire support.
Matrox were alot more help but couldn't resolve the issue.
Tried other makers BIOSES (XFX, ASUS Etc.) and strangely NON would work. Either graphic corruption of no boot...
Stranger still other Bioses work on the Powercolor
Makes me think there is something a bit wierd with the new Sapphire board and the way it's configured. TH2GO owners be aware...
Still got them refunded... Just lost the postage costs.
Will be getting another Powercolor end of month as my Fallout 3 frame rate is lousy with everything cranked up.. :P
Thanks for all the help peeps.
Now.. If only I can work out how to change the UI in S.T.A.L.K.E.R. - Oblivion Lost (FOV Switcher don't work) Before I buy ClearSkies. I want to play all the way through on the Trippie :D