Common instructions for 48×0 radeons and snow leopard

It’s easy and covers rv770/rv790 cards with two dvi ports and dvi display.

0) boot with -x option to get gui

1) install pc efi v10.3 with GraphicsEnabler=y option in boot.plist

2) reboot with -x option and check if card recognized in system profiler, maybe u will need to retry with -pci0 boot option

3) all but 4870: install pkg from this post

p.s. if u have mouse stuters try to change refresh rate to 59 hz with help of switchresx


  1. R.
    February 23rd, 2010 | 1:27 pm

    (I posted this also at:

    No luck I’m afraid with trying to get my 4870×2 working in a MacPro…

    MacPro 10.6.2, fully patched via Apple’s Software Update, booting in 32Bit…

    Used KextHelper to install your Natit and ATY kexts (with help from Cindori providing some injected ROMs in a file)

    ASP shows them as loaded, hence I have the “core 1” string appearing and not the generic “Display” like before.

    I have tried with 2600HD in PCIe Slot1, 4870×2 in PCIe Slot2 and Vice Versa.

    The only difference in the above that I see is when 4870×2 is in slot2. The Displays System Preference registers a display connected to the 4870×2 @ 1920×1200. (it registers this whether a display is physically attached or not)…

    I read somewhere that the 4870×2 should be in slot 2 with the 2600HD in slot 1… Does this matter?

    mmm, what else can I tell you…


    Using Console, I see in “All Messages”:

    22/02/10 11:58:43 PM kernel BARi: Phys:90000000 len:268435456
    22/02/10 11:58:43 PM kernel BARi: Phys:A0000000 len:268435456
    22/02/10 11:58:43 PM kernel ATY_Init: ATY,bin_image not found, init will not be done
    22/02/10 11:58:43 PM kernel ATY_Init: devid from binimage – 9441
    22/02/10 11:58:43 PM kernel ATY_Init: ATOM BIOS Rom:
    22/02/10 11:58:43 PM kernel ATY_Init: Calling ASIC Init
    22/02/10 11:58:43 PM kernel ATY_Init: ASIC_INIT Successful
    22/02/10 11:58:43 PM kernel ATY_Init: Card initialize completed
    22/02/10 11:58:43 PM kernel DSMOS has arrived
    22/02/10 11:58:43 PM kernel ** Device in slot: SLOT-2 **

    nit will not be done? I’m guessing this is the reason for the 4870×2 not coming alive…

    Also, about 20 lines further down I see:

    22/02/10 11:58:52 PM kernel display: Not usable
    22/02/10 11:58:52 PM kernel ATY,Motmot: Not usable
    22/02/10 11:58:52 PM kernel ATY,Motmot: Not usable

    which is “weird”… considering the display obviously works fine when connected to the 2600HD (DVI)…

    Well, I hope this helps…

    Hope to hear from you soon,



    Oh Netkas, your wmtransfer site is… well challenging… I gave up after reading that I have to fax to some number if I’m funding Z or E Purse etc etc…

    I’ve got $100 AUD here to give you… surely there is another means that I can get it you?

    (Money talks where I’m from, so hopefully I’m speaking your language)



  2. alex
    May 10th, 2010 | 9:05 pm

    On sapphire Radeon HD4860 1gb works?

  3. manu dj
    May 20th, 2010 | 7:59 am

    как завести ATI MOBILITY RADEON HD 4330 помогите неделю бюсь?????

  4. 庄子曰
    July 27th, 2010 | 9:52 am


  5. Terry Briegel
    April 23rd, 2011 | 8:01 pm

    Hey, it sounds like you guys know your stuff. I have tried for over a week to get 3 various graphics card to work in a Intel Mac Pro 1.1 I am seriously behind in work & will pay to have one of you help me with tech support help to get one of these cards working. quadro Mac fx4500 & the NVIDIA GeForce 8800 GT

    Any Help

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