Replacing the CPU was fairly quick as this was my third time doing this type of upgrade.
Mac Pro (Early 2009, Dual CPU)
The pins released easily Unlike my 1. I had a broken macbook with 2GB of memory laying around and installed it in this mini. Got everything put back together and pressed the power button. Got what I was hoping for, a startup chime and the display showed a folder with a question mark in it. I then used the external drive to boot the mini with Installed the Core 2 Duo T 2. The hardrive in the mini crashed and I figured it would be a good time to install the T in it.
Was able to remove the pins easily and reuse them. Had a fun time doing the upgrade.
CPU Upgrade Research
Today I upgraded my Mac Mini Early 1. This mini was already upgraded to 2. I had a difficult time getting the pins out of this Mini. My wife's Mini made me wonder why people were having problems getting the pins out. Well, my Mini let me know.
Took 10 minutes to get one pin out as one side kept expanding when I tried to push the pin through the CPU hole. I plan to install I did upgrade the firmware so the machines are identified as Macmini 2,1. I found a couple programs that do not run if the mini was still showing Macmini 1,1. Thank you for all the great information. As to Lion, it's hard to find a second Mac here to upgrade to it.
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On dismantlement of the CPU heat sink, I broke one of the plastic pins. They're probably not designed to be used multiple times anyway. As plastic screws are very hard to find here, I used mm-long M3 metal screws instead. To prevent short circuits on the back side of the PCB, I put the heads of the screws through washers made of thick paper, taken from old light switch covers and AC power plugs.
Or Nylon washers. Hardware Stores usually have them, as well as nylon screws. Turning the nuts on the top side of the heat sink, I adjusted the length and hence the tension of the springs to be about the same as if the original pins were used.
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The thermal compound I applied was Arctic MX The CPU temperature after the upgrade is several degrees Celsius higher than before it, but this may be normal as the new CPU is more powerful. The temperature can be lowered by the so-called "undervolting". But it turned out that there are replacement pins not the same as the original ones but very close made by RichCo and called "HSR-2" which stands for Heat Sink Rivets, model 2 - you can see the HSR-2 drawing available from there.commforvebutbi.tk
Mac mini Model A CPU Replacement - iFixit Repair Guide
Update: as of page 'd, so link removed. They're sold by Digi-Key: www. I think that it may be useful to others. Best regards, Luchezar G. Granted may be a longshot with the way things are going to find these at stores like Radio Shack, but if you still have the spring, I've seen a selection of plastic retaining pins at some hardware stores.
Had no firewire lead to do target mode so created a partition on a mountain lion MBP, installed lion and used Carbon Copy Cloner to copy to new partition on the mini via usb. Navigated to Lion partition from SL and deleted platformsupport. Used MLPostFactor 0.
All runs great apart from no internal sound, but using external audio interface so no problem. Thanks for all previous posts. I've not used MLion much. Main work mac has T 2. Thanks to your site I made the leap and did the upgrade s. Also, I used artic paste between the chip and the heat sink. I called up the seller after googling the shop name and negotiated it for a slight discount over the buy it now price. I simply used Carbon Copy Cloner and cloned the old drive, tested it in my mac 2.
As a bonus, I have the 80 GB drive as an offsite, encrypted backup for can't lose docs and pics. I had no idea how expensive the RAM was for mhz now. It was an easy swap.
It would have taken less but one of the pins holding the heat sink to the cpu popped when I installed it. I spent at least 30 minutes looking for it on the floor. I finally found it on top of the curtains! My skill set is novice at best but I considered the ifixit guides clear enough to make this possible for anyone who cut their teeth on legos. This thing works fine, though the fan turns on when I am pushing it - think transcoding to and video for Plex - but has taken all I have given it.
It currently acts as the media server and main computer for our kids. This has given a new lease to the old mac. When my wife gets some replacement software we intend to upgrade from Snow Leopard to Lion on this machine. Been using it with lion because I wanted icloud and back to my Mac to function, which has been great because I can control it from anywhere. Couldnt do this with snow leopard since mobileme went away. I use it as a central iTunes home share, time machine backups for other wifi connected laptops, and file server I can access from outside the home.
Step by Step: Mac Pro Processor Upgrade
It runs headless andi use screen sharing to control it from any Mac I use anywhere. I had some difficulties with the nylon pins, I broke two of them and had to sacrifice one from the other heat sink to get the job done. That seems to work out just fine though I installed termprature monitor just in case.
I rarely hit above 70 degrees unless I'm doing something really intensive and then smcFanControl at max keeps it down. I am still running All I really needed was icloud so there's no big reason for me to upgrade although the reports of people upgrading and successfully removing the plist are giving me some confidence to do it anyway. It started with a CoreDuo 1. I managed to break one of the plastic heat-sink standoff pins but ended up just replacing all four of them with 1" steel socket head cap screws that I had lying around.
I put the screw up through the motherboard and used a nut to tighten each spring down to approx the same tension as the standoff pins. This doesn't appear to short anything out, as long as your screw head is not too wide. I guess it might be conducting some more heat to the motherboard than the plastic version, but TemperatureMonitor readings all seem fine.
Anyway, so far so good, it gets a GeekBench score of about compared to originally. I've also just done the firmware update from 1,1 to 2,1 which was painless. I've ordered 2x2Gb memory to replace the 2x1Gb that I've got in there now, so that should help on the performance side as well.