Ditto if you know of specific errata that could cause these problems that was fixed in the 2,1 Mac Pro rom related to any of the compatible quad-core CPUs.
If any other readers with a Quad-Core upgraded Mac Pro 1,1 (w/o the 2,1 firmware update) has/is running 10.6.8 or Lion/10.7.1, let me know. Hope this Info might be helpful for others who also suffer from the Kernal Panic problem with their upgraded MacPros. Since the firmware fix playback is totally smooth again, before it stuttered every 5-10 minutes. I use a Media Center Setup (Plex - MacPro acts as the server, Macmini is the client. Since going for the new firmware I had zero panics (2 days now - very promising) and as a bonus - network performance is much better. ( He's referring to the Mac Pro 1,1 to 2,1 EFI updater at Netkas' forums (login reqd to D/L).
In one of the last comments there was a tip to upgrade the MacPro 1,1 firmware, so the Mac thinks he is a 2,1 (This seems possible, because the 1,1 and 2,1 use exact same hardware except for quad cores in the newer one) The 2,1 firmware of course recognizes the Quad-Cores natively.-Mike) Or if his Mac Pro ID'd the Quad-Core CPUs correctly without it.
( BTW - I asked if (w/original 1,1 firmware - before the 2,1 update) he'd installed the "AboutThisMac" patch (used w/10.6 and earlier) to properly ID the Quad-core CPUs, noted/linked in a 2006 Mac Pro Clovertown (Quad core) CPU Swaps Revisited post a couple years ago here. Looks like only owners of MacPro 1,1's with quad core CPU upgrades suffered from this. ( Of course I asked if he tried the usual tips - DL/combo updaters, reset pram/nvram/smc, clearing caches, check for corrupted prefs/files, etc.
Same problems as I had - and all his attempts to find a solution. Luckily I found this blog post: 10.6.8 and Lion (10.7) cause Kernel Panics on MacPro 1,1.
( Assume he tried the 10.6.8 Supplimental Update and latest Lion update to date - 10.7.1.) With Lion it got better, but still about 3-5 kernel panics a day. I went back to 10.6.7 and waited for Lion. following your CPU Upgrade Database)Įverything worked perfectly until I installed 10.6.8 - my pro directly crashed during start, and after that almost every 5 minutes. Two years ago I swapped my original dual cores in the MacPro (1,1) with 2 quad cores (btw. I wanted to share this info with everyone who like me got really frustrated about his Pro and a lot of Panics since upgrading to 10.6.8 / 10.7.x. "Subject: Mac Pro 1,1, CPU Upgrades, Lion and Kernel Panics - a solution Not sure if other readers hadn't updated to those OS versions or did and had no problems or just didn't write me about it. The following is from a recent reader mail - several readers have done 2006 Mac Pro Quad-Core CPU upgrades in the past but this is the first mail I've gotten to date on KP's in 10.6.8 and later with them. if the 2,1 rom has some errata fix for any of those CPUs that's a factor.) I don't have a mac pro 1,1 (w/Clovertown CPU upgrade) to verify this but posting as a FYI in case anyone else has this problem/finds the Mac Pro 1,1 to 2,1 EFI updater (Source was /index.php/topic,1094.0.html) helps. (Some say it fixed kernal panics in OS X Lion/10.6.8 with Quad-Core CPU upgrades) (Unofficial) Mac Pro 1,1 to 2,1 EFI ROM Updater Reports Mac Upgrades/Mods | CPU Upgrades | Storage | Video | Audio/HT | Apps/OS/Network | Search
News Archive for Monday September 19, 2011: