3031 Views 6 Replies Latest reply: Jun 20, 2009 7:03 PM by natey787
Yes. You have to adjust the heat sink. You may need to get a heat sink for the 600
The 600 & 700 boards have the same form factor (shape).
The 350 & 400 boards have the same form factor (shape).
The 500 board is different from the others.
see last two entries
If I buy a logic board, will it have to have the firmware update for OS X on it?
Well maybe the seller would know.
To confirm that boot into open firmware:
"You can press altalt+of when you hear the boot chime and the OF console comes up."
When you're in open firmware you'll see the first line:
"Apple PowerMac2,2 4.1.9f1 BootROM built on ......"
The "4.1.9f1" is the firmware version, which is the latest update - 4.1.9.
spudnuty is one of the iMac g3 hardware experts.
No. You need to avoid booting into Mac OS 10.2 or later with downlevel firmware. This includes from cd/dvd. You will most likely loose the video if you do so and the repair is difficult.
For a slot loading iMac, this article indicates that you need to be running 9.1 or 9.2.x.
"The iMac Firmware Update 4.1.9 will only run on iMac computers with lot-loading CD or DVD drives running Mac OS 9.1 or later from a local drive. If you are using Mac OS X you must boot from a local Mac OS 9.1 or later writeable partition (not a CD, or network disk) prior to following the update instructions."
You can download the Mac OS 9 updates from the Apple site.