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cross fire confusion ?

Discussion in 'Graphics Cards' started by CORRSA, 24 Jul 2006.



    Joined: 23 Feb 2006

    Posts: 73

    right then getting a saphire ati x1900 xt gcaerd cross fire ready (master card i think) then i have read that i can pair it with a x850 gto is this correct ?
    also will it only run at the lower card specs than the master card ? like when you have two types of ram in a mobo the slowest takes preferance ?

    setup will be:
    abit awd 975 board
    2gb gskill ram
    rapter hd
    nec writer
    ocz psu 480

    any pointers here would be grate :eek:
  2. killer_uk

    OcUK Staff

    Joined: 12 Mar 2003

    Posts: 4,070

    Location: OcUK HQ

    As far as I know, you can only pair it with the same card. So in this case another X1900XT

    EDIT: I could be wrong though, I would wait till someone else gives you an answer. ;)
    Last edited: 24 Jul 2006
  3. Calum


    Joined: 30 Mar 2006

    Posts: 336

    Does the graphics card specifically say that it is a 'mastercard'? - if the card only reads 'crossfire compatible' then it isn't a master version only a slave card.

    Also sorry but you can't pair the two cards in crossfire as they are completely different generations of cards (x1900 series - x850 series)

    Sorry to put a downer on your plans :(
  4. Insanity

    Wise Guy

    Joined: 5 Jun 2005

    Posts: 1,747

    Location: Tasmania (Australia)

    If you're gonna go crossfire, i think you're gonna need a stronger power supply than 480watts.

    Doesnt that only apply to nvidia cards and SLI?
  5. Calum


    Joined: 30 Mar 2006

    Posts: 336

    I don't think so, that's why you get different types of mastercard - one for the x850 series, one for the x1800 series etc...

    But to be honest paying the huge amount for the x850 mastercard, it would be better to just get the x1900xt on it's own and be done with it -much more powerful and cheaper too.
  6. LoadsaMoney


    Joined: 8 Jul 2003

    Posts: 29,868

    Location: In a house

    Can only pair it with a card from the same family, i.e x1900 has to be paired with another x1900, x1800 paired with an x1800 etc..., one has to be a master card, other slave. :)

    Unless you have x1300/x1600's, and x1800 GT0's as they dont require master cards, so you can just pair 2x normal ones up, but x1800 XT/x1900 XT require master cards.
    Last edited: 24 Jul 2006


    Joined: 23 Feb 2006

    Posts: 73

    decided to do right

    im sticking with the ati x1900xt for now
    and im changing mobo to a abit AB9pro