Hey,
is anyone able to run this card under snow leopard?

When I start Snow leopard, all fans start spinning and the machine goes crazy.

What do I have to do? What about the EFI String? What do I have to put in there?

i am now able to boot, but with really bad performance and wrong resolution.

i removed all ati*.kext files. Does anybody know how I can get the card running smoothly?

read http://netkas.org/?p=128

jeah, but theres no solution....

problems with qe/ci/opengl ....
en.....

netkas have no more info of 3870 solution.... just wait........ omg.

.... .... just wait........ omg.

Or switch, like me to an Nvidia gpu - i selled my 3850 and now using 9600 GT - perfect on SL.
Also you will never get OpenCL on ATI 2xxxx + 3xxxx cards - even the QE/CI problem will get fixed next weeks.
OpenCL will be supported only for 48xx gpus (47xx to if they would run).
But also 48xx cards (in real Macs) have major problems with 10.6.0 OpenCL, will be fixed with 10.6.1+

well, maybe i am buying an 4870 - seems not very expensive and more powerfull than the 3870

just waiting a few days more and see whats going on

I replaced my 3870 with a 4870. It works in snow but I can't get the speed out of it. My OGL EXT Viewer score was 2000-2100 with my 3870. In snow and 10.5.8 I'm only getting 1600. It was a PITA to switch it out and redo all the drivers umpteen times. Still not right. I'd say wait a while. All the OGL stuff in snow is pretty sketchy right now even on real apple hardware.

@doof: How its looking now? afaik netkas released another package for this cards

I have two 4870s, both are XFX and both have the same product ID as the apple card so I don't need the Netkas injector that jams in the DEVICE ID. One is in my i7 uberbox and the the other is in a ep35 q6600. The i7 one is the OC edition and with 10.6.1 it scores 7300 in cinebench. The other one scores about 6600. My OGL extension viewer score is still in the 1600 range on both, 400 less than my 3870 scored. I think its some oddity of the extension viewer benchmark. I found some scores of actual mac pros with the apple 4870 card that were exactly the same. I'm baffled that some people are reporting 3000 scores. One thing about ogl ex vwr is that the scores are dependent on the screen resolution. When people post a score without the res setting it makes it useless for comparison. I think there must be a bug in the driver or the benchmark that is causing artificially low scores. I'm looking for other benches to verify the 4870 performance. All I really care about is motion performance, I game on PC and consoles.

well, it seems i have to buy a new card to get SL working...

any hints which MODEL from which vendor I should buy (4870)

Is there any hope for 3850/70 to work with 10.6.2? It says it contains graphic driver update.

u sure it's about 3800?
see netkas's blog. it maybe about 4800. to fix opencl problem.

Well, thats exactly why i asked the question. I didnt know what the update was about. I hope its not only for 4800

me too...

same here

anyone has an idea which 4870 is supported? If the new update does net let the 3870 work, i 'll gonna upgrade to 4870

hey guys i got my 3870 HIS 512mb Gddr4 running with snow leopard

but QE/CI doesnt seems to work

i cant install iMovie

but it is working with snow leopard loh

i can boot, surf the net, iphoto runs, itunes works

havent had time to test it out

i just got it working today, but i am going crazy because my setup works great with leopard 10.5.7

imovie works too

i dont know why snow doesnt work

Hey, any news in this issue?

damn... stock here with ati 3850/70 waiting one driver for snow leopard