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Oldmopars

macrumors member
Original poster
Aug 5, 2025
39
6
I recently bought a 2011 24in iMac for cheap, I fixed it and really fell in love with it. However, that 27in screen just called to me. So, I bought a cheap Late 2009 27in.
It has the i5 in it, but I happen to have a Dell from the same era with a i7-870 in it I plan to remove. As RAM is cheap I plan to just max it out.
The one thing I am a little worried about is the Admin Lock. At what level is it locked? If I put in a different hard drive (SSD) or format the drive in another machine, with that wipe the admin lock off?
My plan was to put in either an SSD or an SSHD. (Or both) I will change out the battery while I am in there. This should wipe it clean and allow me to install new OS, right?
I use Linux a lot, I have Mint on several computers I use as hosts. Elementary OS looks like a great option. It is a Linux (Ubuntu) distro, but it has the look and feel of a modern Mac OS without all the hoops to jump through.
Is anyone here using Elementary OS?
If I plan to use Linux (Elementary OS) only, will I need to do anything to run a different GPU? I know there are pages and pages of info on upgrading the GPU to work with newer MacOS, but with Linux is any of that required or is it plug and play?
I know it will never be a Gaming Beast or even come close to a newer computer, but I bought it just to have fun with. I have several other computers I use daily that are way more powerful. (M2 Max, i7-1185G7 and AMD Ryzen 7-5800XT)
 
Why not get the password from the seller?

Is this the firmware password, or just an account userid/password? I don't believe there's any way to remove the firmware password - at least methods that don't break the rules here at MR.

Your best bet is to take it to an apple store with proof of payment, since this is a bought iMac, the original owner may need to be included in this process in some way or fashion.
 
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