After UEFI update i7 2600k stuck at 1.6Ghz

[Stoma]

Hello all,

Before I flashed my mb with UEFI the cpu reacted like it should with the SSDT installed, got a Geekbench score around 13500 or so.
Now with UEFI instead of a bios my CPU is always on a 16x multiplier instead of my 42x setting, tried SSDT but it didn't work.

Do someone have this same issue or/and have a solution? It's not that big deal but with video encoding and PS it's (too) slow sometimes. Except for the CPU speed it's stable like a real Mac

 

[pdawg1717]

Hello all,

Before I flashed my mb with UEFI the cpu reacted like it should with the SSDT installed, got a Geekbench score around 13500 or so.
Now with UEFI instead of a bios my CPU is always on a 16x multiplier instead of my 42x setting, tried SSDT but it didn't work.

Do someone have this same issue or/and have a solution? It's not that big deal but with video encoding and PS it's (too) slow sometimes. Except for the CPU speed it's stable like a real Mac

http://www.tonymacx86.com/mountain-...ntain-lion-geekbench-scores-3.html#post393196

I had the same problem and SSDT did not work for me either so I had to use the linked solution for now...

 

[Stoma]

Thanks, that also works for me. To bad it's on default clock speed (3.4Ghz) instead of my raised multiplier, but this is already a big difference

 

[squeeks]

change system definition until you find one that works, like iMac 13,2 that fixed my 2600k