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| What is the Maximum OS for an Imac G4 800 mhz |
Posted by: Theretrogamingroom on 2011-01-11 14:38:47
I would like to know what the maximum OS for an Imac G4. Some sites say 10.4 others say 10.5. I am confused. What is it?
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Posted by: racepres on 2011-01-11 15:39:44
I use 10.4.11 on mine... but, I have never tried to go "up" from there..
I have the capability to try to go to 10.5, Just don't see a good reason to do so.
Try it if you have it, If not LMK and I believe that I could try for you!
RP
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Posted by: Anonymous Freak on 2011-01-11 16:11:47
The official minimum install for 10.5 is 867 MHz; so your model *JUST* missed it. Although 10.5 generally can be made to install without issue on systems that are just under that spec. I have a G4 Digital Audio, one generation older than the minimum-supported for 10.5, and it installed just fine even with a 450 MHz CPU, using an OpenFirmware trick. It ran just fine when I upgraded to a dual 1.0 GHz, and then to a single 1.5 GHz. It also runs fine on my minimum-spec PowerBook G4 867 MHz.
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Posted by: johnklos on 2011-01-12 07:43:37
You can run 10.5 if you want. 10.5 generally takes more memory, but is generally faster. Much new software requires 10.5 as a minimum, plus you get Time Machine.
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Posted by: Theretrogamingroom on 2011-04-04 19:03:29
Ok. Now I have a 10.5 disk. How do I do the "Open Firmware" trick?
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Posted by: johnklos on 2011-04-04 19:29:24
Here's one way:
http://hints.macworld.com/article.php?story=20071214143723301
Another is to use another machine and put the iMac into Firewire target mode and install onto it.
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Posted by: Christopher on 2011-04-18 06:56:24
I did the:
dev /cpus/PowerPC,G4@0
d# 867000000 encode-int " clock-frequency" property
and after that was done I typed mac-boot hit enter and hit the C key as soon as possible.
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Posted by: mcdermd on 2011-04-18 09:27:29
Glad to see my OF hack passed around still 😀
imac600 also made a great little utility called LeopardAssist that you can use if there is already an OS X version running on the Mac.
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Posted by: ~Coxy on 2011-04-18 20:13:18
You can run 10.5 if you want. 10.5 generally takes more memory, but is generally faster. Much new software requires 10.5 as a minimum, plus you get Time Machine. In my experience, 10.5 is slower. (At least on 1GB of RAM or less, which for a lot of G4s is the absolute- or practical max.)
Also note that you lose Classic.
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