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<blockquote data-quote="sam.spoons" data-source="post: 1695855" data-attributes="member: 340683">Thanks Harry, I meant cheap 'for a 2006' not just cheap for a MacPro <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile&nbsp; &nbsp; :)" loading="lazy" data-shortname=":)" /> It isn't so much avoiding it becoming a doorstop as avoiding spending fruitless (but not AppleMac-less) hours faffing that I'm posting here to ask for advice from those who have successfully run Mavericks on a 2006. Clearly there are people who have done so (and, undoubtedly some who have failed) but I doubt that irrevocable damage will ensue unless I jigger the firmware (I believe the only benefit is to allow you to upgrade the processors and they're plenty powerful enough of this role). I have a working HDD with 10.6.8 on it which I will keep safely on one side so I can always return to that if my fiddling does not bear fruit.I have just found Tiamo's boot.efi and copied it to my spare SSD in place of the original versions but it doesn't boot in the 2006 (TBH that's what I expected, if it was that simple, as you said, we'd all be doing it <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile&nbsp; &nbsp; :)" loading="lazy" data-shortname=":)" />) So and further advice welcome.</blockquote>

[QUOTE="sam.spoons, post: 1695855, member: 340683"] Thanks Harry, I meant cheap 'for a 2006' not just cheap for a MacPro :) It isn't so much avoiding it becoming a doorstop as avoiding spending fruitless (but not AppleMac-less) hours faffing that I'm posting here to ask for advice from those who have successfully run Mavericks on a 2006. Clearly there are people who have done so (and, undoubtedly some who have failed) but I doubt that irrevocable damage will ensue unless I jigger the firmware (I believe the only benefit is to allow you to upgrade the processors and they're plenty powerful enough of this role). I have a working HDD with 10.6.8 on it which I will keep safely on one side so I can always return to that if my fiddling does not bear fruit. I have just found Tiamo's boot.efi and copied it to my spare SSD in place of the original versions but it doesn't boot in the 2006 (TBH that's what I expected, if it was that simple, as you said, we'd all be doing it :)) So and further advice welcome. [/QUOTE]

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