Just as a follow-up to this thread's original purpose, I've been inadvertently using a PowerPC machine for a couple of weeks without any issues.
Where I work I was issued a brand new MacBook Pro. I originally had problems because Profile Manager was used to load on settings which would put the machine to sleep regardless of what settings I changed, which is not good for someone who works primarily in shells. After reinstalling and disabling Profile Manager, I was happy for a few months.
Then, my machine started crashing. After the third, I backed up all my files and started using my 2008 17" MacBook Pro instead. The new MacBook Pro came back, so I started using it again.
Recently, I had Terminal crash several times while in the middle of important work. Then, the whole Mac locked up. Sorry, but that's not acceptable, so I backed up my files and gave the MacBook back again.
I'm in the process of porting code to a nice IBM Power 8 system, so in preparation I brought in an old dual processor Power Mac G5. I was going to install FreeBSD on it and use ocl-icd to provide OpenCL support, then test the same code on the Power 8 system with those fancy NVIDIA Tesla K80s.
Since I hadn't gotten around to installing FreeBSD yet, the system still had Leopard. So, when my laptop frustrated me for the last time, I connected the Power Mac, fired it up, downloaded TenFourFox and the latest WebKit, and started working.
At some point I completely forgot that I'm on a Power Mac. All web sites work (and no, I don't give the slightest damn about Flash - it's dead, and I'm happy). I'm using Slack through their web interface. I've got a dozen shells open on two 1080 monitors. I've got all of my usual Unix tools installed via NetBSD's pkgsrc.
I moved the OS to a 500 gig SSD, but other than that, I haven't touched it. It just runs. The only thing I can't do is run VirtualBox, but with a Xen server on the network, I don't even need that any more. I may just keep using it, or I might swap it for a quad G5 I still have. Viva la PowerPC!
Edited by johnklos, 17 February 2017 - 06:36 AM.