On Apr 26, 2011, at 10:58 AM, Tina K. wrote:

On 2011/04/26 09:41, t...@io.com so eloquently wrote:
There were two extremely similar models of 800MHz G4, 17" iLamp.

The first one will boot into OS 9.2. The second one will not. It's
a bit like the difference between a regular MDD and a FW800 MDD,
except harder to tell apart.

Yours is probably the first model, as it came with an 80GB hard drive, and the later, OSX only model, came with a 60GB hard drive. But hard
drives can be changed.

The clear distinguishing characteristic is that the OS 9 booting model
has NVIDIA GeForce4 MX graphics and the OSX only model has NVIDIA
GeForce2 MX graphics.

I had forgotten that the G4 iMacs were updated once before they added USB 2, thanks for the reminder.

According to Mactracker both of the USB 1 17" iMacs use the GeForce4 MX but the earlier one came with 32 MB of VRAM whereas the second one came with 64 MB VRAM.


IMO EveryMac.com gives more info than Matracker on all the Macs. According to EveryMac.com Jeff's explaination is spot on.

Yorba Linda CA
92886 USA
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