question: ov3rclock an iMac tower

1 reply [Last post]
Joined: Jun 29 2006
Posts: 5

i just got a 400MHz iMac G3 logic board for 8 bucks on ebay. i really had nothing to do with it, but hey, its 8 bucks. so anyway, i figured i'd put it in a tower and maybe overclock it. i've searched all over for tips but everyone says they dont recomend it because that CPU has no cooling, well in my tower it will have a heatsink and case fans. does this open up new doors? i cant find any advice taking this into acount. i've already o/ced my B&W PM, does the imac board use jumper blocks in the same way, or does something need soldered? how much can i get out of a 400? should i push 500, keeping in mind this is an $8 experiment?


1.8 GHz MacBook Pro, core duo, 512MB
450 MHz PowerMac G3, 640MB
2.5 GHz Pentium 4 Desktop, 512MB

Comment viewing options

Select your preferred way to display the comments and click "Save settings" to activate your changes.
Joined: Mar 20 2006
Posts: 43
Here's a link to help you: h

Here's a link to help you:
If I understand correctly you have to configure a set of resistors to adjust the clock speed.


iBook G4-1.33/768 || B&W G3-450/512 server || B&W G3-G4 400/768 || Beige G3-400/256 in Classic case || Beige G3-300/256 || PB 5300cs Pictureframe 100/24