forums.macrumors.com
OpenCore works, but Catalina updates don't. Westmere/Gulftown is a requirement for VMM spoofing.
The easy updates with Apple make it all worthwhile... I had that same problem on my 4-core with a 2.66 Nehalem. I got a 3.33 Westmere for $50. Installation was a breeze, even the thermal compound went on easy. I always disliked that part from building Winboxes last century for work. I just used the pea-sized dab in the middle and cross tightening of the heat sync. Seems to be fine. I added an RX 580 was well. There are plenty on eBay, but I was really frustrated that most times the ending price with shipping was only $20 or $30 less than a brand new one, shipped free. I would say that many of the prices for "Refurbished" mdse were more than current new prices. I also wanted a specific model, so eBay was problematic. When I upgraded an 8-core about a year ago, I got the Gigabyte 580 since they have the oversized fans and are generally pretty rugged. But I did wider research this time as I had a tight budget, and almost every brand of 580 was on auction. I liked the XFX units from what I read, and was not disappointed once I got it running, but only for a couple days. QUIET. Every time I looked, the fans were off. Meanwhile, I've been binging on Opencore with the 12-core, and got the basics to work really well. I haven't seen a boot screen since I made my first video card upgrade, as the Mac EFI cards were so expensive. That was about 9 years ago. So, that black screen boot picker and progress bar is really nice. I now have Catalina on all 3 of my Macs where only one made the list. BTW, the upgraded Westmere CPUs are available in several speeds and models. I chose the 3.33 as that's generally the next to the top line 3.84. The top line costs are a bit out of line. Both the 6-core and the 12-core CPUs can be used in a quad core. It's all in the 90 pages of the OC thread. Make sure you have the correct speed RAM for the processor. Don't try to run a 6-core with 1033. I've heard that it can cause backups. As soon as the Nehalem was replaced, only 1333 was sold new for 4-core MPs, but it only operated with 1066 speed when with a Nehalem CPU. My 4-core only had 24GB of RAM, but it turned out to be 1333 once I got it coupled with my Westmere CPU. There are still a few things that don't work as well, but I am hopeful about finding solutions, judging by the erudition of those who support it on MacRumors. The CPU swap was only about a couple of hours, including a lot of time finding everything I needed. It took about the same time to do a clean install of Mojave and which made me scramble for fast drives. I got everything running and backed up, and saved the Opencore installation for this morning. The CPU upgrades do have a large affect on speed, nearly double with more RAM. But, what can help with incompressable files with high resolution imagery is openCL which uses the GPU and the super fast 8GB of RAM. However, don't forget the new NVMe drives (blades). Inside the SATA2 drive bays, no SATA SSD can get to 300MB/s compared to my S-970 EVO that gets 2800MB/s.
If you don't use paragraphs and separate your ideas, no one will read massive blobs of text. Take your time to make what you write easier to be read.
Sorry for the mixup, that curt reply was meant for IndeoX. He must invented that quote, supposedly it was from me, but you can see my mostly syntax correct post immediately proceeding his fake quote from me. Perhaps there were problems with the posting initially.
good afternoon.No, since Mojave is the last MacOS officially supported by MacPro5,1.
You may try this approach, although:
OpenCore on the Mac Pro
This guide explains how to use the excellent OpenCore boot loader to install, run, and update the latest version of macOS on the MacPro5,1, resulting in a clean, unaltered operating system just like on a supported Mac.
I use it and it’s great.
you do not need to mess around with opencore to install catalina ... checkout dosdude.
Welcome to the world of pain that is updating Catalina
