5850 Crossfire Overclocking

hi there, i'm new to this forum. :D

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. :D


P.S: sorry for my bad english. i'm from indonesia.
22 answers Last reply
More about 5850 crossfire overclocking
  1. msi after burner? i have used it on my hd4870's but not sure if it has been updated for the 5800 series
  2. richardscott said:
    msi after burner? i have used it on my hd4870's but not sure if it has been updated for the 5800 series


    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?
  3. well rivatuner is your best bet but i find its hard to get it to work with CF
  4. richardscott said:
    well rivatuner is your best bet but i find its hard to get it to work with CF


    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.. :D
  5. I don't know why you would want to OC those cards since they are basically 2 monsters at stock speeds.... You have more firepower then a single 5870....

    Just my opinion....
  6. OvrClkr said:
    I don't know why you would want to OC those cards since they are basically 2 monsters at stock speeds.... You have more firepower then a single 5870....

    Just my opinion....


    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..

    :D
  7. nice scores, do you have any screen-shots?
  8. OvrClkr said:
    nice scores, do you have any screen-shots?






    cmon, anyone can help?
  9. i agree with oveclkr, basically no need to OC the cards unless you're trying to set a record or something.
  10. jonpaul37 said:
    i agree with oveclkr, basically no need to OC the cards unless you're trying to set a record or something.


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

    I'm on a race with my friend on all 3Dmark.. :D
  11. yea he wants to beat his buddy =)
  12. hmmm..., i can OC my 4850's with Riva, maybe it's a compatibility thing with the 5xxx cards...
  13. one sec, researching...
  14. I just flashed both of the card with msi bios to remove the limitation..

    so I think it's solved right now.. thanks all.. :D
  15. Cool, let us know if you fixed the issue and get new screens =)
  16. kudos! be sure to post the results!
  17. Just a quick question , but what board are you using, I'm thinking about a new 790fx, and just wondering.
  18. i'm using msi x58 pro.. :D


    anyway, i don't have any problem with my 5850s anymore.. cause i'm now using 5870.. :D
  19. tkgclimb said:
    Just a quick question , but what board are you using, I'm thinking about a new 790fx, and just wondering.



    In my opinion, classifieds are the only way to go with i7's.
  20. zeta555 said:
    i'm using msi x58 pro.. :D


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



    You already upgraded ?
  21. nah, wouldn't call it an upgrade.. because right after the race I just sell the 5850s and get one 5870.

    one card is enough for me daily.. because I just watch movie.. :D
  22. zeta555 said:
    nah, wouldn't call it an upgrade.. because right after the race I just sell the 5850s and get one 5870.

    one card is enough for me daily.. because I just watch movie.. :D



    I'll trade your 5870 for my old GT7800 which almost has PhysX support and we'll call it even.
Ask a new question

Read More

Graphics Cards Overclocking GPUs Intel i7 Crossfire