Someone on Netkas did it, you can read about it on that forum as well.
Awesome man! Thank you for your efforts and i will also try and dig a little deeper this week and see if i cant get in contact with someone who knows whats up. I will post any info i find as well.
Would be so awesome to upgrade to westmeres!
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There’s a guy who did it and wrote on this forum about it, but he vanished without a trace and didn’t tell anyone how he did this. I’ll look into netkas forum and see if I can find anything.
EDIT: ok, found some information, it seems there was a thread here where people managed to flash a cMP5,1 firmware onto a xserve 3,1, thus enabling the use of westmere CPUs and all the goodness from using the 144 bootrom from Mojave.
The problem is that, at some point there was a misunderstanding and the OP nuked his own thread with all the info in it.
I’ve tried scouring with the web archive and google cache but to no avail.
If someone here knows something or has a copy of the thread and the files involved, please share!
And sorry for the OT, maybe we should start a thread over at the Xserve forum.
And thank you for your efforts as well! Glad there is such a helpful community for old apple hardware