5850 Crossfire Overclocking

hi there, i'm new to this forum.

I have 2 5850 on Crossfire running on my rig along with i7 920 @4.2GHz

now i'm looking for a way to overclock both og my card. i've tried afterburner, AMD GPU clock tool, and rivatuner.

but no luck whatsoever. all i can do is overclock one card and the other card remain at stock speed.

on AMD GPU clock tool when I try to overclock the 2nd card, my rig crahs.

even rivatuner don't recognize my 2nd card.

except for using CCC, which I managed to get to overclock both of my card. but using CCC have limitation on the overclock.

Is there any way of OCing both of the card?

All help is appreciated.



P.S: sorry for my bad english. i'm from indonesia.

yeah it works, but the clock is limited to 775 like in CCC
not like in AMD GPU clock tool, and rivatuner which can exceed 775..

thanks btw, but any other OC software reccomendation?

i've tried rivatuner. but the 2nd GPU just listed as "unattached device"

and when I try to change the core clock my pc just crash..

is there any other program? i'm a noob in ati.. long time nvidia usere here..

that's right OvrClkr, this cards is monsters!

my friend that using one 5850on his 3.6 q5500 can push his card to 1000/1250 and get almost 18000 on vantage and 24500 on '06..

I just like to see if overclocking this cards can get me over 30k on 06 because now my score is stuck on 28500 on 06 and 22500 on vantage..

cmon, anyone can help?

ok I agree with you, but the thing is I do need to set a record..

I'm on a race with my friend on all 3Dmark..

hmmm..., i can OC my 4850's with Riva, maybe it's a compatibility thing with the 5xxx cards...

I just flashed both of the card with msi bios to remove the limitation..

so I think it's solved right now.. thanks all..

kudos! be sure to post the results!

i'm using msi x58 pro..


anyway, i don't have any problem with my 5850s anymore.. cause i'm now using 5870..

You already upgraded ?