Go Back   MacRumors Forums > Apple Hardware > Desktops > Mac Pro

Reply
 
Thread Tools Search this Thread Display Modes
Old Mar 27, 2013, 10:35 PM   #1
DrD
macrumors member
 
Join Date: Aug 2007
Snow Leopard and 6870?

I did some quick googlin, and couldn't seem to get a definitive answer.

Will Mac OS 10.6 (Snow Leopard) work at all with a mac-friendly EFI Radeon 6870?

If the answer above is yes - then whats involved? And how tricky is this, in a nutshell?

To put this is perspective, I'm considering getting a used/refurbished 2010 Mac Pro with 10.6 once the newer 2013 era Mac Pro's are released, and the prices come down. I've always really liked the current case design, and actually prefer 10.6 snow leopard for the desktop macs (I already have 10.8 on a budget 13-inch macbook, where I feel the newer interface is actually worthwhile). I will use Windows 7 for the windows side. This will be to replace a 2008 era iMac with a build-to-order 8800gs.
__________________
"Two roads diverged in a wood, and I--
I took the one less traveled by,
And that has made all the difference."
-Robert Frost
DrD is offline   0 Reply With Quote
Old Mar 28, 2013, 02:50 AM   #2
MacUser2525
macrumors 65816
 
Join Date: Mar 2007
Location: Canada
Quote:
Originally Posted by DrD View Post
I did some quick googlin, and couldn't seem to get a definitive answer.

Will Mac OS 10.6 (Snow Leopard) work at all with a mac-friendly EFI Radeon 6870?

If the answer above is yes - then whats involved? And how tricky is this, in a nutshell?

...I'm considering getting a used/refurbished 2010 Mac Pro with 10.6...
Works fine I ran SL until a month or so ago on my 5,1 then did my ML upgrade I was eligible to do. The procedure is download the video bios with the efi in it. Flash to the card put it in Mac connect up the power cables you need the mini 6 to standard pci-e 6pin to connect it. You get or I do the boot screen on the only dvi port that works and both mini-display ports work though I have never tested them at the same time.
__________________
MacPro 5,1 16gb HD6870; MacPro 4,1 5,1 12x2.66ghz 24gb GT120
MacUser2525 is offline   0 Reply With Quote
Old Mar 28, 2013, 02:36 PM   #3
DrD
Thread Starter
macrumors member
 
Join Date: Aug 2007
Quote:
Originally Posted by MacUser2525 View Post
Works fine I ran SL until a month or so ago on my 5,1 then did my ML upgrade I was eligible to do. The procedure is download the video bios with the efi in it. Flash to the card put it in Mac connect up the power cables you need the mini 6 to standard pci-e 6pin to connect it. You get or I do the boot screen on the only dvi port that works and both mini-display ports work though I have never tested them at the same time.
So, you ran a 6870 under Snow Leopard, just by flashing the video bios? I was under the impression there would also be driver issues, because only Lion and afterwards supposedly contain the drivers for a 6870... could be wrong though. If you don't mind, I'd really appreciate if you could verify this for me.
__________________
"Two roads diverged in a wood, and I--
I took the one less traveled by,
And that has made all the difference."
-Robert Frost
DrD is offline   0 Reply With Quote
Old Mar 28, 2013, 04:21 PM   #4
MacUser2525
macrumors 65816
 
Join Date: Mar 2007
Location: Canada
Quote:
Originally Posted by DrD View Post
So, you ran a 6870 under Snow Leopard, just by flashing the video bios? I was under the impression there would also be driver issues, because only Lion and afterwards supposedly contain the drivers for a 6870... could be wrong though. If you don't mind, I'd really appreciate if you could verify this for me.
Yes it was SL believe the idea is 10.6.8 where the drivers appear if my memory serves me. I only upgraded my machine to the ML just recently as I said in my OP before that the card ran just fine in SL. I skipped Lion entirely except for booting the new machine to confirm it worked then I put in my disks, extra ram and the card then ran the SL that was on them.
__________________
MacPro 5,1 16gb HD6870; MacPro 4,1 5,1 12x2.66ghz 24gb GT120
MacUser2525 is offline   0 Reply With Quote
Old Mar 28, 2013, 05:05 PM   #5
TheDoc
macrumors member
 
Join Date: Mar 2008
I'm still running 10.6.8 in my 5,1 and I'm using an unflashed 6870. Other than the boot screen and DVD stuff as mentioned elsewhere, everything has been working perfectly.
__________________
2010 Mac Pro, 2.8GHz Quad, 12GB RAM, EVGA 4GB GTX 760 / Macbook 5,1 / iPhone 5 32GB
TheDoc is offline   0 Reply With Quote
Old Mar 28, 2013, 05:29 PM   #6
DrD
Thread Starter
macrumors member
 
Join Date: Aug 2007
Nice to hear. Glad to know theres at least 2 people out there who got it working. If I end up doing so I will let you guys know.
__________________
"Two roads diverged in a wood, and I--
I took the one less traveled by,
And that has made all the difference."
-Robert Frost
DrD is offline   0 Reply With Quote
Old Mar 29, 2013, 11:59 AM   #7
666sheep
macrumors 68040
 
666sheep's Avatar
 
Join Date: Dec 2009
Location: Poland
I'm running 6870 in 10.6.8 too (MP1,1). So far unflashed...
666sheep is offline   0 Reply With Quote
Old Mar 29, 2013, 12:42 PM   #8
ActionableMango
macrumors 68040
 
ActionableMango's Avatar
 
Join Date: Sep 2010
I looked into this back in the day when I was going to buy one. IIRC, with SL 10.6.8 or newer you can just plug and play to get the OS with no boot screens. However, there will be no acceleration (QE/CI are not enabled) and some applications (notably DVD player) will have problems.

To gain acceleration and fix those applications, you either have to flash OR use the right version of ATY_INIT. You don't have to do both. If you flash you will also get boot screens on a MP 3,1 or newer.

Because 6870 requires drivers in the 10.6.8 update, I suspect you may have difficulty installing or reinstalling SL from any SL disc, even if you have boot screens. But I've not tried it, so I'm not sure.

Quote:
Originally Posted by 666sheep View Post
I'm running 6870 in 10.6.8 too (MP1,1). So far unflashed...
Last I checked, the flashed ROM is a 64-bit-only EFI, so if you have an older MP 1,1 or 2,1 with 32 bit EFI, flashing the 6870 doesn't gain you anything.

Hope this helps someone.

Cheers!
ActionableMango is offline   0 Reply With Quote
Old Mar 29, 2013, 02:25 PM   #9
666sheep
macrumors 68040
 
666sheep's Avatar
 
Join Date: Dec 2009
Location: Poland
Quote:
Originally Posted by ActionableMango View Post
Last I checked, the flashed ROM is a 64-bit-only EFI, so if you have an older MP 1,1 or 2,1 with 32 bit EFI, flashing the 6870 doesn't gain you anything.
I'm working on EBC ROm for it
666sheep is offline   0 Reply With Quote
Old Mar 29, 2013, 06:34 PM   #10
PowerPCMacMan
Banned
 
Join Date: Jul 2012
Location: PowerPC land
What about the new 7950? Will that run under 10.6.8??
PowerPCMacMan is offline   0 Reply With Quote
Old Mar 30, 2013, 09:53 PM   #11
DrD
Thread Starter
macrumors member
 
Join Date: Aug 2007
Quote:
Originally Posted by PowerPCMacMan View Post
What about the new 7950? Will that run under 10.6.8??
That is great question, as I was not even aware of this new option...
http://forums.macrumors.com/showthread.php?t=1559147

Looks amazing.
You listening Sapphire? I like this card, and will actually consider it if you make it available for 10.6.8. Otherwise, no deal.
__________________
"Two roads diverged in a wood, and I--
I took the one less traveled by,
And that has made all the difference."
-Robert Frost
DrD is offline   0 Reply With Quote

Reply
MacRumors Forums > Apple Hardware > Desktops > Mac Pro

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Similar Threads
thread Thread Starter Forum Replies Last Post
iMac was running Snow Leo; Genius put Mtn Lion; I NEED Snow Leopard back; have disk SophiaSapphire Mac Basics and Help 14 Oct 20, 2013 01:17 PM
Leopard to Snow Leopard on MBP 2009 - worth it? uncleMonty OS X 6 Feb 17, 2013 01:28 PM
Downgrading from Lion to Snow using time machine and USB (Snow Leopard) djarsalan2006 OS X 0 Jan 19, 2013 12:37 AM
Upgrade Leopard to Snow Leopard 2008 iMac? roberttrussell MacBook 1 Nov 18, 2012 06:02 PM
Syncing iPhone 5 on PPC Leopard via a Snow Leopard Macbook Jethryn Freyman PowerPC Macs 2 Oct 2, 2012 09:09 AM

Forum Jump

All times are GMT -5. The time now is 12:03 AM.

Mac Rumors | Mac | iPhone | iPhone Game Reviews | iPhone Apps

Mobile Version | Fixed | Fluid | Fluid HD
Copyright 2002-2013, MacRumors.com, LLC