Hello,

I´m new here and i search the newest drivers for my hd3870 ( iDeneb 10.5.5. ) because i get an "error" like this when booting OS-X. : Picture !

I found that topic: http://forum.insanelymac.com/index.php?showtopic=107526 ! And at the end of poste#1 there is a link to an ATI Radeon HD 3870 but the upload is dated to the 05/29/2008 !

Is THIS realy the newest one??

Thanks for help!

I would try to get an gfxstring boot !
Use therefore the great+easy util EFISTUDIO (netkas) and use the orig. Apple drivers.
It has a an Menüe for selecting your GPU.
YOu MUST!!! remove any gpu injector (NATIT.KEXT) before reboot.
http://www.mediafire.com/?mi2jyme5fxf
This efistudion uses the standard Framebuffer plugin Lamna (in ATINDR.KEXT).
Maybe it helps (if not working) to use the megadlon FB.
To do that, you can also use EFISTUDIO and after selecting your card, change all
shown Lamna into the megadlon (also the ..._parent).
You cant use an gfxstring from an other ATI 3870 user, because often there are some
little differences in the PCI-E Slot Number. Make allways your own!

Goto: http://forum.insanelymac.com/index.php?showtopic=107526

look in the title post for :
Update: try pkg for 2600 Pro & XT, 3850 & 3870 and maybe ( 2400 series ) also 3650 users try this Report back
Download here

This is what I tried. I have a Sapphire toxic HD 3870. It works but I am still having erratic fan spin up's an spin downs.
especially if the shutdown/restart way botched.

first: whats your sys config? amd / intel? motherboard chipset?

i had the same "garbled screen" as you do with my 3870 with every driver i tried.
in my case the problem got solved by changing the motherboard. (nforce chipset to
amd chip)

first i had to install without driver support / remove the kexts by hand.
then, in vesa mode, i (re)installed the pkg and everthing is fine.