starobrno1

Mountain lion works just use one of the USB thumb drive methods and your good to go.

If you have the Sapphire HD 5750 1Gb GDDR5 it will work if you edit the plists for the AMDRadeonAccelerator.kext and the ATIController.kext.

Enter the ID for this card 0x68be1002 in both plists. The GPU on this videocard is Juniper. Edit under where it say Juniper in the AMDRadeonAccelerator.kext

To get the displayport to work in order to get three displays you need an active dipslayport to dvi adapter.

In Extra you need DSDT.aml and org.chameleon.Boot.plist SMBios.plist for Mac Pro mid 2010.

In Extra/Extensions only fakesmc.kext.

For network use the RealtekKRTL81xx-0_0_90.pkg

To speed up the boot time use AppleAHCIPort.kext and IOAHCIFamily.kext from Lion

I attached the files

Use the latest Chameleon and kextutility

This allmoast drove me crazy but I never gave up though I was so close lol. Ive been trying to make three displays working with this card for over a year now.

Also English is not my first language so I probably use way to many words but please bare with me Im doing my best here lol.

This is not in anyway a guide cause Im just not the right guy to put one together. Short story is in reality Im just a noob that got lucky with this specific video card, thats it.

The installation method I used for ML is one of the USB flash drive ones that you find here.

What was strange though is that Chameleon wouldnt create the Extra folder on ML (like we are used to) so I had to copy the Extra folder I already had on my Lion install over to the ML drive.

I tried a few Chameleon versions but it was the same with all of them. Dont ask me why I dont know cause like I said Im just a noob.

The version I used is the latest one though if I remember it right but that doesnt mean I say it wont work with another one. Like I said Im just a noob so I wouldn't know.

The boot time kind of sucks though, its way to loooooong but hopefully that will change if someone that knows what theyre doing digs in here and fix it.

So once you have ML up running just copy paste the AMDRadeonAccelerator.kext and the ATIController.kext to your desktop.

You should also backup the two kexts to a safe place if stuff goes wrong.

Then edit them by rightklick and pick Show package content/Contents/Info.plist and add the id for this card which is 0x68BE1002 or 0x68be1002. Im a little confused here so I cant say for sure if the BE part have to be in capitals or not so you have to experiment yourself to find out.

In my ATIController.kext though its in capitals (0x68BE1002) but in my AMDRadeonAccelerator.kext its not (its 0x68be1002) but thats pretty much probably only by accident. Anyway it works so who cares lol.

In the AMDRadeonAccelerator.kext info.plist you have to scroll way down to where it say  


<key>AMDJuniperGraphicsAccelerator</key>
<dict>
<key>ATIEnableWideBlitSupport</key>
<true/>
<key>ATIUseTearingWideBlit</key>
<false/>
<key>CFBundleIdentifier</key>
<string>com.apple.AMDRadeonAccelerator</string>
<key>GpuDebugPolicy</key>
<integer>0</integer>
<key>IOClass</key>
<string>AMDJuniperGraphicsAccelerator</string>
<key>IODVDBundleName</key>
<string>AMDRadeonVADriver</string>
<key>IOKitDebug</key>
<integer>0</integer>
<key>IOMatchCategory</key>
<string>IOAccelerator</string>
<key>IOPCIMatch</key>
<string>0x68B81002 0x68B01002 0x68B11002 0x68A01002 0x68A11002 0x68be1002</string>

and add the id just like it say in the line over here.

In the ATIController.kext you wont have to scroll down so far though


<key>IOName</key>
<string>AMD5000Controller</string>
<key>IOPCIMatch</key>
<string>0x68981002 0x68991002 0x68E01002 0x68E11002 0x68D81002 0x68C01002 0x68C11002 0x68D91002 0x68B81002 0x68B01002 0x68BE1002 0x68A01002 0x68A11002 </string>

Use Texteditor to do the modifications. Its already in os x and works great for this so you wont have to download anything.

Use kextutility or whatever program you usually do to install the kexts back to the Extensions folder.

Good luck hope it works for you guys too.

Is there any way somebody could work something out for the Sapphire HD 5750 1GB GDDR5 videocard so that the displayport will work. Ive been trying to make it work for over a year now but theres no way to make it work no matter what the heck I do. I want three displays and that should be possible with this card and it works in win 8 out of the box with no extra drivers or anything so to me it seems its just crazy it wont work in os x. Ive read up on every bit of info I could find on the internet so Ive tried everything even with Lion with no success.

My mobo is an Asus P6T SE cpu is i7 930 and I use Fabios DST.aml and the rest of the files from that thread so the computer runs really good. It works good with two displays after editing the ati5000controller.kext. AND I have an ACTIVE adapter for the displayport. (Hell this mobo wont even let me use my two good old 7300 gs videocards that works supergood with my GA mobos so is this an Asus problem or what?)

And Yes Im using a modern enough chameleon for this to work and it doesnt matter if I type in GraphicsEnabler=Yes or =No in the org.chameleon.boot.plist

Like I said Ive tried with both snow leo 10.6.8 retail and Lion retail

BroadCom BCM94321MC MINI-PCI-E 802.11N

I bought this card on ebay and put together a home made airport card. It works perfect with my asus p6t se mobo but wont work with my ga ep 45 ds 3or my ga p35 ds3 r.

The ga mobos will see the card but it wont work and osx acts really sluggish. The fact is I use the same cloned 10.6.8 osx from a real imac for all three computers.

I even deleted the onboard network in the settings, boot plist onboard network is set to to no and I also unactivated network in bios but it doesnt help.

I use the same kexts in extra and dsdts are the right ones for each mobo.

Help lol

Ive been trying to access this site for a couple of days but its not worked I got server timeouts all the time. Is it only me or?

I have been able to access it today but this is the first time I actually can post anything at all.