Register FAQ / Rules Forum Spy Search Today's Posts Mark Forums Read
Go Back   MacRumors Forums > Apple Hardware > PowerPC Macs

Reply
 
Thread Tools Search this Thread Display Modes
Old Dec 27, 2006, 04:28 AM   #1
MoBurkhardt
macrumors newbie
 
Join Date: Dec 2006
Question G3 iMac DV overclocking

Hi there I just restored an old 1999 G3 iMac DV 400MHZ with slot-drive from the dead, and I feel it lacks a bit of power under it's hood. I already put RAM and HDD but the computing power is just not enough.

What I want to do is go into OpenFirmware and speed up the cpu and possibly the bus, I remember doing so on my sawtooth but I can't find the code plus that was a G4 and now I have a G3.

I also found this page (http://www.bekkoame.ne.jp/~t-imai/imacde1.html) that shows how to mechanicaly overclock up to 1GHZ but I want to be able to do it non physical if possible.

I know this isn't the hot topic now a days but maybe some of you will remember what they used to do and feel some nostalgia(is that a propper word?).

thanks
MoBurkhardt is offline   0 Reply With Quote
Old Dec 27, 2006, 04:40 AM   #2
Queso
macrumors 603
 
Join Date: Mar 2006
Why not just bid on this? It's totally swappable with your existing logic board, the on-board G3 is an IBM one where the cache works at full chip speed unlike your existing Motorola chip, and it comes with double the VRAM you currently have.
Queso is offline   0 Reply With Quote
Old Dec 27, 2006, 07:14 AM   #3
Macmadant
macrumors 6502a
 
Join Date: Jun 2005
Quote:
Originally Posted by MoBurkhardt View Post
Hi there I just restored an old 1999 G3 iMac DV 400MHZ with slot-drive from the dead, and I feel it lacks a bit of power under it's hood. I already put RAM and HDD but the computing power is just not enough.

What I want to do is go into OpenFirmware and speed up the cpu and possibly the bus, I remember doing so on my sawtooth but I can't find the code plus that was a G4 and now I have a G3.

I also found this page (http://www.bekkoame.ne.jp/~t-imai/imacde1.html) that shows how to mechanicaly overclock up to 1GHZ but I want to be able to do it non physical if possible.

I know this isn't the hot topic now a days but maybe some of you will remember what they used to do and feel some nostalgia(is that a propper word?).

thanks
It can't be done without soldering, i brought this up ages ago, as my granddad owns one, now i've got his to recently purchase an ibook G3, with double the CPU speed, and 4X the VRAM
Macmadant is offline   0 Reply With Quote

Reply
MacRumors Forums > Apple Hardware > PowerPC Macs

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
thread Thread Starter Forum Replies Last Post
G3 iMac DV+, OS 9 and Time Capsule old john Apple Collectors 4 Aug 8, 2009 05:16 PM
Airport card doesn't see ANY networks; 400Mhz G3 iMac DV stir-crazy PowerPC Macs 1 Mar 10, 2009 05:42 PM
G3 iMac DV as a media server? hualon Apple TV and Home Theater 3 Oct 23, 2008 08:26 AM
Problem installing Panther from back up disks on G3 iMac DV hankk Mac OS X 10.3 (Panther) Discussion 1 Jan 29, 2005 08:16 PM


All times are GMT -5. The time now is 07:09 PM.

Mac Rumors | Mac | iPhone | iPhone Game Reviews | iPhone Apps

Mobile Version | Fixed | Fluid | Fluid HD
Copyright 2002-2013, MacRumors.com, LLC