View single post by Robert

Posted: Mon Dec 31st, 2018 07:19

Joined:	Sun Apr 1st, 2012
Location:	South Lakeland, UK
Posts:	4066
Status:	Offline

Unfortunately not possible, 3.1 and 4.1/5.1 are different architectures. 4.1 and 5.1 are essentially the same construction, although Apple denies this. The firmware is the only difference according to many experts, including former Apple technicians who worked on them when new.

Most 4.1's are sought after and 'converted' with a special utility which fools the firmware downloader into thinking the target machine is a genuine 5.1.

4.1/5.1 basic machines aren't all that expensive, you might want to install a pair of better CPU's, they are freely available from Dell servers etc. They are a doddle to fit provided they aren't capped. The caps are glued on and can be hard to get off without damaging the CPU. Easier to find uncapped CPU's, just be aware.

Also you can just slide in a twelve core processor board, eBay is your friend here.

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Robert.