Northwinds Posted March 3, 2018 Share Posted March 3, 2018 Ok, so my build is pretty old but I won't have cash to start anything more up to date until much later in the year and I have some overdue college assignments I have to get done right now (I maybe should mention I'm a mature student so no asking Mummy and Daddy for money for a new machine). That said, this system has been excellent right up until I tried to change from Yosemite to El Capitan - which I need for a couple of software upgrades. I've been struggling with this for over a month now, so please help! I got rid of chimera and made the transition to clover (which I'd already used on other installs) and with a LOT of help across the community from here and elsewhere, have finally got over USB problems, Graphics issues and the huge changes from Yosemite to El Capitan - except for... Cpus=1 I still have to use to boot and this makes my system incredibly slow and almost unusable with frequent crashes, where Yosemite was rock solid. I've tried using a ton of suggestion to fix this (but perhaps I am doing them wrong so am willing to try again in detail anything suggested) and even tried making a DSDT and SSDT (but again perhaps I have made mistakes in this?). I am attaching to this post both an ioreg and a zip of my compete EFI in the hopes that someone here will be kind enough to have a look and advise me what I'm doing wrong? Many thanks! EFI.zip Craig’s Mac.ioreg.zip Link to comment Share on other sites More sharing options...
Northwinds Posted March 3, 2018 Author Share Posted March 3, 2018 Thanks for your reply! I'll try your suggestions and post back. All except for the SMBIOS I need to keep at MacPro 4.1 for my graphics. Thanks! Link to comment Share on other sites More sharing options...
Northwinds Posted March 3, 2018 Author Share Posted March 3, 2018 Nothing changed much I'm afraid - you were right about the entries to remove. I did try the 11.1, 11.2 SMBIOS options again but - as when I was trying to fix this before, a few weeks back - the system seems to boot and then gives me a black screen, hence one of the reasons I settled on MacPro 4.1. I've added some basic system specs to my signature too. Thanks! Link to comment Share on other sites More sharing options...
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