I need to get back to my 3,1 project too. I was running Pop OS on it but eventually the updates gave me issues and I have no time to troubleshoot linux. Tinkering was fun when I was younger. 😁
Have fun with your new system
@ascender
Things have escalated....
No matter what combination of virtualisation software I tried, I couldn't get my VMs to run. Unfortunately with the 3,1 I was limited in OS which in turn meant I was limited in virtualisation software. I managed to track down an older version of VMWare and VirtualBox, but none of them would run. Two days of my life I won't get back...
In the hunt for cores, I then picked up a refurb 2018, 6 core Mac Mini. 6 cores isn't great, but I figured I'd max out the RAM and would just have to go with 4 cores for my VMs and 2 for normal work (which would be find when I was using the VMs). After a few days, its a brilliant machine, but I could fry eggs on the case which is alarming having been using an M1 Mac for the last few months. Even with all the new-machine indexing over, its running way too hot and the fans are on far too much. So its going back.
4,1/5,1, 12 core systems on eBay are still starting at £500-£700 and upwards from there. And you have the OS limitation again. I also don't need lots of internal space or expansion cards, so as much as I love those machines, it started to make me think about just spending a little bit more...
So I've just picked up a 6,1 Trashcan Mac on eBay. I know, I know, I must be mad... But short of buying a Hackintosh or building my own Windows machine, neither of which I CBA with at the moment, I don't think its a bad deal. Prices are what they are and having made a spreadsheet, by the time you add-in the costs of a 1TB SSD, 32/64GB RAM and the 12 core CPU, you could pretty much buy any spec of D500 machine and end up at the same total figure.
Compared to the Mac Mini, (6 cores, 512GB SSD, 64GB RAM), the Mac Pro (12 core, 1TB SSD, 64GB RAM) is going to cost £350 more and hopefully won't run as hot or loud and will give me more cores for my VMs. At least that's my way of justifying it to myself.
Other options I looked at were iMac Pros, but used ones are still 2-3 times the price of this project. And the cheapest refurb Mac Pro from Apple is about £7,000.
And that's how I've justified it to myself!