iMac upgrade to i7-2600k with 10.9

[Maila87]

Hi, I tried to upgrade the iMac with i7-2600k like I read. Just my boot stuct and won't pass me to OS. Any suggestions please?

 

[biohead]

Need a bit more information than what... what model iMac do you have? Size and Year?

 

[mrsavage1]

Hi, I tried to upgrade the iMac with i7-2600k like I read. Just my boot stuct and won't pass me to OS. Any suggestions please?

The 2011 imac can't take the k series.

 

[Bear]

Hi, I tried to upgrade the iMac with i7-2600k like I read. Just my boot stuct and won't pass me to OS. Any suggestions please?

The i7-2600S is what Apple provided as an option for the Mid 2011 21.5" iMacs. See this thread for more information: 21.5 mid2011 iMac CPU Upgrade.

 

[Maila87]

My model is 27" with mid-2011 with i5 3100 MHz.

 

[andycho7]

for 21 inch model BTO - i7-2600S

for 27 inch model BTO - i7-2600
No S or K. Just 2600 for 27 inch model.

 

[RedReplicant]

In 10.9 they started checking CPUs and it won't boot without a CPU that was actually released for that model / release cycle.

 

[Chippy99]

In 10.9 they started checking CPUs and it won't boot without a CPU that was actually released for that model / release cycle.

WOW, I didn't know that. That's going to be a whole load of pain for Macintosh owners, and also people who might have one day upgraded their Mac's CPU.

 

[Maila87]

Is there any solution for hacking supporrted processors list?

 

[matthiaswitt]

I had Success with 2600k, mavericks imac

I also installed a 2600k in my imac 27 2011. It is running OS X Mavericks and had kernel panic etc. on startup. There was one way to start the imac (it works only sometimes):

Turn off by holding the power button,
trun on by pushing the power button once,
do a nvram/pram reset by holding the keys cmd, option(alt),p,r until you hear the startup sound a second time,
immediatly hold the shift key to start up in safe mode.
after that the imac sometimes did boot into maverics.

when you are in maverics (try it multiple times):

I had refit installed on my mac, but i think this is not neccessary.

download multibeast (6.3) for mavericks (tonymacx86.com). under drivers select system, patchedAppleIntelCPUPowermanagement, os x 10.9.0.
select build and install on your primary hard drive/ssd.

After that my mac boots up normally.

i hope it is useful for you...

 

[HoreaG]

I just aquired a 2011 iMac 27" and found out it has an i7 2600k in it. Runs fine under Win10 (no MacOS installed).
I wonder what benefits does the K version have in an iMac. As far as I know it is not overclockable in the iMac, right?

 

[DCBassman]

Correct, no benefit for K model.