New (used) iMac EMC 2389 help??

daddyd

macrumors newbie
Original poster
Oct 6, 2012
4
0
Hi, I just bought this iMac from a surplus retailer and I was informed it would be an as-is purchase but maybe yall can help me out?

I'm really new to apple also so bear with me.

When I boot the computer, it boots into a Windows XP version with a ctrl-alt-del style login. So I got a copy of snow leopard and I wanted to clear the entire hard disc and re-do everything with only snow leopard being on there, but absolutely none of the startup keys that i've tried have worked, ie. holding C, pressing option after startup, etc. Nothing changes it from booting up the copy of Windows XP. Here's exactly what happens. I press the power button, a solid blank white screen appears for a few seconds, the iMac chimes, and then it boots into Win XP.

Can anyone give me any advice on how to re-install a different OS?

Much thanks!
 

daddyd

macrumors newbie
Original poster
Oct 6, 2012
4
0
OK so I found bad news, I held option after the chime and a padlock comes up. So I guess someone has locked it, is there anyway to remove this?

Thanks
 

ruk110

macrumors regular
Apr 8, 2010
204
0
England
try to turn on the mac in target disk mode, connect it to another computer and carry out a full hard drive format and go from there. thats what i did with my other mac mini
 

justperry

macrumors G4
Aug 10, 2007
10,509
5,948
I'm a rolling stone.
Were they selling them of the back of a car?
Lol, you forgot to add a wink, there are also legit ways to get a Mac.

Try to turn on the mac in target disk mode, connect it to another computer and carry out a full hard drive format and go from there. thats what i did with my other mac mini
Hmmm, does that work, isn't the firmware preventing access?
Edit: It IS, Target Disk Mode Disabled
 
Last edited:

daddyd

macrumors newbie
Original poster
Oct 6, 2012
4
0
I googled around and found an answer. I removed a module of memory and rebooted holding, command + option + p + r, and then let it cycle a few times, then held option after chime and startup option appear. I then shutdown, reinstalled the RAM and started back up and the startup options still work. I tried to boot from DVD but I'm thinking my copy of OSX is only upgrade. But at least firmware password is gone. Thanks for the help!
 

justperry

macrumors G4
Aug 10, 2007
10,509
5,948
I'm a rolling stone.
I googled around and found an answer. I removed a module of memory and rebooted holding, command + option + p + r, and then let it cycle a few times, then held option after chime and startup option appear. I then shutdown, reinstalled the RAM and started back up and the startup options still work. I tried to boot from DVD but I'm thinking my copy of OSX is only upgrade. But at least firmware password is gone. Thanks for the help!
Good on ya:)

I think you need the full install disk.

Cheers
 
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.