Nvidia 9800GT upgrade help.

Discussion in 'Mac Pro' started by aerodynamikh, Mar 20, 2009.

  1. aerodynamikh macrumors newbie

    Joined:
    Mar 20, 2009
    #1
    So I've noticed that my Hd2600Xt is not really that fast so i bought an Nvidia 9800GT. I opened my mac pro, took out my old GfxCard, and put in the new one. But the 9800 needs a secondary power supply. Now, i have a 6pin -> 4pin cable: [​IMG]. I've connected the 6 pin part into the graphics card But i don't know where to put the 4 pin!!!!

    HELP PLEASE!!!!
     
  2. Cindori macrumors 68040

    Cindori

    Joined:
    Jan 17, 2008
    Location:
    Sweden
    #2
  3. aerodynamikh thread starter macrumors newbie

    Joined:
    Mar 20, 2009
  4. Ploki macrumors 68000

    Joined:
    Jan 21, 2008
    #4
    sell it, and get the apple 8800GT kit. 9800 is not worth the hassle imo, gtx280 is. :)

    9800 is very similar to 8800 performance wise.. and by very i mean that if i remember correctly use the same gpu

    else you can : flash the rom + external power supply... or the thing that Cindori linked you to.
    you can also get a PC 8800 and flash it.
     
  5. aerodynamikh thread starter macrumors newbie

    Joined:
    Mar 20, 2009
    #5
    Since my macpro mother board has 2 x16 slots, can i put both 9800 and 2600 and use teh 9800 when i boot into xp and then the 2600 when i boot into osx?
     
  6. Ploki macrumors 68000

    Joined:
    Jan 21, 2008
    #6
    yep
     
  7. aerodynamikh thread starter macrumors newbie

    Joined:
    Mar 20, 2009
    #7
    oh awesome, i'm loving my mac pro now.
    thanks guys.
     
  8. Ploki macrumors 68000

    Joined:
    Jan 21, 2008
    #8
    you still need power though :D
     
  9. aerodynamikh thread starter macrumors newbie

    Joined:
    Mar 20, 2009
  10. kabunaru Guest

    Joined:
    Jan 28, 2008
    #10
    Maybe get an ATI Radeon 4870 instead of the Nvidia 9800 GT?
     
  11. Aegelward macrumors 6502

    Joined:
    Jul 31, 2005
    Location:
    UK
    #11
    I keep wondering how convenient it is having two GPUs in one of these. each one serving a different OS. won't you have to swap the monitor cable between operating systems?

    Is there some kind of specific cable that accepts two inputs and switches?
     
  12. aerodynamikh thread starter macrumors newbie

    Joined:
    Mar 20, 2009
    #12
    Well unfortunatly the store doesn't give you refunds or exchanges.
    so i'm stuck with this.
     
  13. Ploki macrumors 68000

    Joined:
    Jan 21, 2008
    #13
    there are monitors that accept two cables so you can switch on the monitor. but i havent seen many to be honest, and many were VGA/DVI . :)
     
  14. MacVidCards Suspended

    Joined:
    Nov 17, 2008
    Location:
    Hollywood, CA
    #14
    If your 9800GT has a 128K EEPROM chip, it is a simple matter to mod the 8800GT ROM to flash it...solves your problems.

    Elsewhere here is a link to the power cable for $12.95 from ATI.
     
  15. mbimac macrumors member

    Joined:
    Apr 1, 2009
    Location:
    vancouver
    #15
    This is my DIY this can help you

    This is my DIY this can help you

    Just use your Dvd rom's power cable if you got your 2008 mac pro which the Dvd rom still HDD not SATA so there is a 4 pin power adpater but one thing you should DO IT YOURSELF I will SHOW some photos

    You should cut off and have 4 cable which will put into the 4 pin connecter (see photo)

    And I let all cable go thru the conner of the case which take the first HDD away and you will find way to get thru it some more pics.

    Cheer By the I DIY my XFX Nvidia 8800 GT 256MB ,I am thinking upgrade to
    ATI 4870 but this need 2 6pin much more power supply anyone has try it??? Does the Mac pro power can support???and How much the MAX Watte of standed power supply...Thanks
     

    Attached Files:

  16. uninc macrumors newbie

    Joined:
    Apr 12, 2010
    #16
    help for aerodynamikh

    are you still there aerodynamikh?

    google "aquamac gfx strings" follow the instructions, and you will solve your problem.
     
  17. Mackilroy macrumors 68040

    Mackilroy

    Joined:
    Jun 29, 2006
    #17
    uninc, this topic is over a year old. Odds are the guy's long gone. :)
     

Share This Page