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EFI Rom for Radeon HD4890
- Thread starter netkas
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What are the downsides of using a flashed PC videocard on Mac?
What is the discussion about PCI 1.0 / 2.0 about? (I'm not sure what it means)
PC 4870 have no VGA, HDMI and HD audio.
PCIe 2.0 is faster than 1.0. If your Mac Pro has an older PCIe bus you may not be able to get the highest performance in every configuration or operating system.
Just did a vanilla install of Snow Leopard on my 2008 Mac Pro and flashed Sapphire 4890 with excellent results.
Worked out of the box - just no QE/CI.
Installed the Modified Kexts and that solved it.
Here are my results from benchmarking:
Worked out of the box - just no QE/CI.
Installed the Modified Kexts and that solved it.
Here are my results from benchmarking:
Attachments
I used rom#2 from the zip file netkas posted on page 1.
The modified kexts i used are here:
Tried flashing a Diamond 4890 (A4890PE51G), does not work. Flash went OK, but now the mac goes into a chime loop even if a working card is in slot 1.
Reflashed and exchanted for a HIS H489F1GP, which is more likely a reference card.
And it works!
I'll post screens once I get the proper drivers installed.
Reflashed and exchanted for a HIS H489F1GP, which is more likely a reference card.
And it works!
I'll post screens once I get the proper drivers installed.
Hey guys I finally got around to logging a ticket with XFX about the PCIE 1.0 vs 2.0. The guy was pretty helpful and said really i shouldn't be too concerned... he said the 4890 would saturate a PCIE 1.0 8x Bus. Since i've got 16x dedicated to it right now i'm not worried.
Now if next year when I get my highpoint raid card and it's not in 2.0 mode *then* i'll worry
Now if next year when I get my highpoint raid card and it's not in 2.0 mode *then* i'll worry
Some additional notes.
I was using this to play Aion last night. temps never broke 70C, and the fan IS stepping up as needed. However, I noticed the "usage" meter in the catalyst control center never broke 65% or so. Not sure if that's because Aion isn't really pushing it, or if it's the HT issue.
Perhaps someone would like to run 3dmark on their flashed card?
I was using this to play Aion last night. temps never broke 70C, and the fan IS stepping up as needed. However, I noticed the "usage" meter in the catalyst control center never broke 65% or so. Not sure if that's because Aion isn't really pushing it, or if it's the HT issue.
Perhaps someone would like to run 3dmark on their flashed card?
I runned 3Dmark vantage and gave me 9795, as i can see around internet the result its OK.
I'm sunk...
I just picked up a HD 4890 from local338 (eBay). I didn't realize that dual DVI won't work under OSX (according to the listing). Is there anything I can do to correct that? Otherwise I just wasted $300
Thanks
I just picked up a HD 4890 from local338 (eBay). I didn't realize that dual DVI won't work under OSX (according to the listing). Is there anything I can do to correct that? Otherwise I just wasted $300
Thanks
this is the thread you are looking for:
https://forums.macrumors.com/threads/713428/
and, under snow leopard, the 4890 works with 2 dvi.
https://forums.macrumors.com/threads/713428/
and, under snow leopard, the 4890 works with 2 dvi.
Only under sl? wtf? dammit,and I was under impression that it works allso under leo?
ach,time to return the card..
no, only snow leopard
don't see why you wouldnt want snow leopard anyway
it's a good performance boost, and only 29$
or, for me, who downloaded a pirated copy, 0$...
also you would want to keep your original graphic card anyway as backup, in case you need to reinstall Leopard you would get black screen with a 4890 cause the drivers does not exist on a Leopard install DVD.
I run my 2nd display on my old crappy 7300gt.
don't see why you wouldnt want snow leopard anyway
it's a good performance boost, and only 29$
or, for me, who downloaded a pirated copy, 0$...
also you would want to keep your original graphic card anyway as backup, in case you need to reinstall Leopard you would get black screen with a 4890 cause the drivers does not exist on a Leopard install DVD.
I run my 2nd display on my old crappy 7300gt.
Cant use sl.
CS3 has too many bugs under photoshop and indesign (the infamous crahs when saving bug).
and fcp (plugins and color) cant run with two gfx cards...
so no go..
Well.Time to sack it up,cut the losses and order the apple 4870.
It was nice to tinker again for a while...
if you are up for more tinkering, you can flash a PC 4870, it gives dual dvi under Leopard
Vade retro me,satan!
No thanks...