I have had no problems using an i7-2700K in an (GPU upgraded) 27' 2011 iMac. I never tried High Sierra on that machine, though. (Of course, the price of an i7-2700K is ridiculous when compared to an i7-2600... I managed to score a bargain.)
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CPU Upgrade iMac Mid 2011
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On what macos did you get that result ? Can you share a screenshot ? What are the temps under full load ?
good to know
I never tried one myself, but recall many posts in the past (maybe not even HS but older versions of MacOS) about people trying it and having problems whit OS boot:
Imac Mid 2011 Intel CPU 2700K Samsung SSD wont boot with mavricks
:banghead: Hi everyone I will start with the latest test trial. This week I ordered a 3770k Intel cu and installed it in my Imac mid 2011 with 16 gigs of ram and a Samsung 830 ssd with 2 gig video card. The screen would not even turn on. So I went back to my old Intel CPU 2700k installed it...
@KNz The 3770 would be a very nice upgrade (lower TDP and around 15% faster), but being Ivy Bridge currently does not work (unknown reasons) on the 2011 iMacs.
Even then. An entry level $699 Mac mini gets you 8GB Ram, 256GB storage and 2.3TF GPU(Shared Ram). With my setup, I have 32GB of RAM, 512GB SSD, weaker CPU and 1.8TF GPU(4GB DDR5). The ancient Sandy Bridge CPU handles literally anything I throw at it and the GPU with Davinci Resolve renders all on the GPU.
$100 for 32GB ram
$42 for 512GB SSD
$120 for GPU
It's still more cost effective to upgrade a machine than replace it especially when using Linux, and it helps cut down on eWaste.
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Agreed. I think keeping machines out of the e-waste chain is an honorable practice. Intel did us a real favor by not innovating for so long, it gave all our machines impressive longevity!
I bought a 2010 iMac 27, i7 1 TB HDD, 8 GB RAM for $100 two weeks ago. Added 16 GB of RAM and SSD and it's great.
You also get a nice display, speakers, videocamera, microphones, SD card reader, DVD drive and no cable clutter.
I recently updated my 21,5" 2011 iMac with the Xeon E3-1270. It works great so far.
According to Intel Power Gadget, the CPU's power consumption has never gone above 68W. Though if I'm running something intensive like video encoding the CPU will run at 3,3GHz instead of the rated 3,4GHz, the max temperature being 86℃ but averaging at 80℃ after CPU fan starts running at full speed. Your mileage might vary.
I also have Quadro K2100M gpu which seems to be slightly (5W) more power hungry than WX4150
I ended up deciding to stick with my i5 2400S for now since it seems to only be about 6% bottleneck on the CPU when paired with that GPU(WX4150). I'm not going to nitpick over 4 Frames out of 60 when tied to a single thread, that is pretty balanced.
I think I will get more out of replacing the DVD drive with a 2TB SSD(even with it being SATA 2. On a SATA2 bus with an SSD, it's nearly 2X faster than a mechanical hard drive) and SSDs are so inexpensive these days.
I think I will get more out of replacing the DVD drive with a 2TB SSD(even with it being SATA 2. On a SATA2 bus with an SSD, it's nearly 2X faster than a mechanical hard drive) and SSDs are so inexpensive these days.
I did it ! Not tested fully but seems to be working ok !
Sleep and wake don't work, and I guess the iGPU is disabled since it is not shown in neofetch.Does sleep & wake work on your system? The iGPU will be most likely disabled anyway. Just curious to know
Ok upgraded to opencore 0.4.2 and sleep does seem to work now.
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I've never had problems with sleep/wake with i7-2700K in my iMac12,2. Always used it with OCLP, never with the original GPU, but sleep does work with WX4150, WX4170, and now even with the 'testing...' one (see signature).
I have upgraded another iMac12,2 with an i7-2700K, HP WX4150 and BT4.2/802.11ac WiFi.
As @m0bil mentioned, sleep/wake does not work with High Sierra. Backlight comes up after sleep, but there is no image. (I observed the same behaviour when I tried to upgrade an iMac12,2 with a Xeon E3-1270. But in the case of Xeon that failure to wake from sleep happened with BigSur/Monterey, too. This is of course known...)
However, sleep works with Monterey (via OCLP 0.4.2 built with default/detected settings on the tested machine). The longest sleep cycle was 20 minutes in today's 'quick' tests, but it is quite a bit more promising than High Sierra. (And this is also in line with my previous observations on a different machine upgraded with i7-2700K - sleep/wake works.) So, @KNz I'm not sure what we did differently. (Could the upgraded GPU/BT/WiFi also play a role?)
Edit: After installing Monterey to internal drive I can confirm that sleep/wake seems to work flawlessly. (iMac woke up without a problem after two overnight sleeps.)
(P.S.: Yes, I still have not-the-latest VBIOS on that WX4150...)
As @m0bil mentioned, sleep/wake does not work with High Sierra. Backlight comes up after sleep, but there is no image. (I observed the same behaviour when I tried to upgrade an iMac12,2 with a Xeon E3-1270. But in the case of Xeon that failure to wake from sleep happened with BigSur/Monterey, too. This is of course known...)
However, sleep works with Monterey (via OCLP 0.4.2 built with default/detected settings on the tested machine). The longest sleep cycle was 20 minutes in today's 'quick' tests, but it is quite a bit more promising than High Sierra. (And this is also in line with my previous observations on a different machine upgraded with i7-2700K - sleep/wake works.) So, @KNz I'm not sure what we did differently. (Could the upgraded GPU/BT/WiFi also play a role?)
Edit: After installing Monterey to internal drive I can confirm that sleep/wake seems to work flawlessly. (iMac woke up without a problem after two overnight sleeps.)
(P.S.: Yes, I still have not-the-latest VBIOS on that WX4150...)
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