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You are here: MacNN Forums > Hardware - Troubleshooting and Discussion > Hardware Hacking > Can you replace CPU or PS in G4 533?

Can you replace CPU or PS in G4 533?
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Feb 20, 2007, 12:12 PM
 
Are there any online instructions as to how replace either/or the CPU and the Power Supply in our G4 533?... and is it something I should be able to do with regular computer tools and a little commons sense?
     
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Feb 20, 2007, 01:07 PM
 
Yes.

The power supplies aren't standard in Macs, the motherboard connectors are wired differently. CPU upgrades are expensive and not really worth it IMO but with some modification you may be able to get a Quicksilver CPU working in there.
     
closer  (op)
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Feb 20, 2007, 01:12 PM
 
the two G4's were purchased at the same time... in fact the other G4 may be a faster model than my broken down one... can teh processor still be swapped out?... I'm thinking its more that than the power supply right now...

I also asked in another thread if it simply be a bad lithium battery/PMU problem... or would that be too simple a fix?
     
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Feb 23, 2007, 12:51 PM
 
apple-history.com

The above link is what I think is the model you have. If the CPU speeds are in that range, you should be fine for moving the CPUs between computers.
(Last edited by olePigeon; Feb 23, 2007 at 01:00 PM. )
"…I contend that we are both atheists. I just believe in one fewer god than
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Feb 23, 2007, 01:01 PM
 
Originally Posted by closer View Post
I also asked in another thread if it simply be a bad lithium battery/PMU problem... or would that be too simple a fix?
I would start with the PMU reset before swapping mobo's or processors.
A bad battery can cause all kinds of irritating problems.
     
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Feb 24, 2007, 06:21 PM
 
Originally Posted by seanc View Post
Yes.

The power supplies aren't standard in Macs, the motherboard connectors are wired differently. CPU upgrades are expensive and not really worth it IMO but with some modification you may be able to get a Quicksilver CPU working in there.
So I guess you couldn't throw a standard PC power supply into a Power Mac?
The Mac Collection:

Power Mac G4 Sawtooth at 450MHz, Power Mac G4 Gigabit Ethernet at 400MHz, three Power Mac FW800's at 1.0GHz, MacBook Pro at 2.0GHz, my late father's G3 iMac at 350MHz, an iMac at 500MHz, a PowerBook G4 (12-inch VGA) and a PowerBook 170
     
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Feb 24, 2007, 06:46 PM
 
Originally Posted by Northeastern292 View Post
So I guess you couldn't throw a standard PC power supply into a Power Mac?
Nope. Not without modifying the wiring layout first.
     
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Feb 24, 2007, 06:54 PM
 
Originally Posted by seanc View Post
Nope. Not without modifying the wiring layout first.
I did not know that. Guess I could put my spare G4 power supply up for sale.
The Mac Collection:

Power Mac G4 Sawtooth at 450MHz, Power Mac G4 Gigabit Ethernet at 400MHz, three Power Mac FW800's at 1.0GHz, MacBook Pro at 2.0GHz, my late father's G3 iMac at 350MHz, an iMac at 500MHz, a PowerBook G4 (12-inch VGA) and a PowerBook 170
     
closer  (op)
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Feb 26, 2007, 08:58 AM
 
hi guys

I ended up pretty much swapping out all the swappable parts from the one dusfunctional 533 to the our Web 533... did all the restarts, ran all the diagnostic SW I had... and still nothing... and really had no experience with Thermal paste etc as far as refitting the CPU and Heat Sink so put what I thought were the working parts from the Web 533 into the old 533 and... nothing... nothing that is until I reset the PMU again... its now been fully functional (touching real wood as we speak) since thursday!... life is good again...

appreciate all your help though guys... I'll definitely be back... best Mac forum I've been to over the years!
     
   
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