Some of my questions include:
- will flashing my HD6870 put a 32 bit bootloader on my card so it will show the osx boot screens?
- will my HD6870 even 'run' that 32 bit code ? - I assume the card is 64bit?
- If flashing the card would not produce the benefit of showing boot screens - will the flashing at least give me better support or performance in osx (e.g. proper recognition of the card instead of ATI Radeon HD 6xxx )
Try booting holding down the option key and see if there is a choice of the El Capitan.
Yo, so are these 6 pin headers on the board where I'd connect the video card power? I figure this GTX 660 I have will work fine if I can get power to it.
Here's a pic of the headers:
https://www.dropbox.com/s/inwe4p08yi949bh/File Jul 15, 8 28 39 PM.jpeg?dl=0
Also the OS X install bombed out installing to my 32GB USB, so I'm going to try to install OS X directly on this Mac Pro using the El Capitan recovery that makes it onto the system.
Yep, you have two PCI six pin sockets on the board, these ARE NOT standard sized, they're Apple specific. Here's the one I bought.
http://www.ebay.com/itm/151450438011
Perfect, thank you!!!
Okay, so here's where I am at now:
- Able to boot the Pikified El Capitan USB
- Install crashes at about the 12 minutes remaining mark
- El Capitan recovery is installed though, so I told it to install OS X from the App Store
- Installer downloads and reboots, obviously the EFI file is wrong
- Terminal from El Capitan recovery again, copy Pike's boot.efi over /Volumes/<system disk name>/OS X Install Data/boot.efi
- Reboot and the El Capitan installation is going with 21 minutes remaining
- Fingers crossed
If this works it may be a viable solution for people trying to install on less than 12 gigs of RAM.
Edit - Damn. That didn't work. So where's a cheap place to buy a Thunderbolt to Firewire adapter so I can put this thing into target disk mode?
cd /Volumes/<incompleteElCvolume>/var/log
cat install.log
cp /com.apple.recovery.boot/boot.efi /Volumes/<systemVol>/System/Library/CoreServices
cp /com.apple.recovery.boot/boot.efi /Volumes/<systemVol>/usr/standalone/i386
Good to see it's working - I would recommend an SSD instead of a HDD - the difference in speed is huge but not sure if there are any problems running this as a RAID. The pic of the mouse takes me back a bit - I got fed up with cutting them open to clean the ball and rollers and bought a logitech Performance MX and it is a million times better. As much as I love the Mac Pro, Apple could never seem to make a decent mouse.Good news guys! The 8GB of Memory, and my HD5870 Reference card showed up today! Guess who's not getting any more Kernel panics..
This guy!
The other 4GB that the store I bought the Mac from is in the mail, so as soon as that gets here I'll have 16GB. Then I'll be buying another 8GB (2x4) since its so cheap, for a solid and final 24GB (lol I only have 16GB in my ~2014 Gaming PC). I'm super excited to finally have a GPU that I've wanted for a very long time, especially the AMD Reference version. I had two 5770s in my older gaming PC, which worked great for the time they were in their prime. Next step in this "build" is four 1TB WD Blue drives from Newegg. They'll be ran in RAID, but I'm yet unsure of the version I want to run at the moment. I got another free iMac G5 17" which came with a corded keyboard and mighty mouse. I repaired the scroll ball in the mighty mouse, and said peripherals are what I'm using to type this now.
Here are two bench's that I ran using GeekBench 3 trial, you can see the older bench with 4GB and the 7300GT, and the new bench with the 8GB and the HD5870 Reference.
Good to see it's working - I would recommend an SSD instead of a HDD - the difference in speed is huge but not sure if there are any problems running this as a RAID. The pic of the mouse takes me back a bit - I got fed up with cutting them open to clean the ball and rollers and bought a logitech Performance MX and it is a million times better. As much as I love the Mac Pro, Apple could never seem to make a decent mouse.
From p1 of this thread...Oh what now!