Upgrading PowerMac G4 MDD to 4GB of Memory

Question

Level 1

25 points

Upgrading PowerMac G4 MDD to 4GB of Memory

1GB modules are cheap now and the PowerMac G4 MDD has 4 slots.

Are there technical limitations to filling all 4 slots with 1GB modules?

Will the computer recognize all the memory?

Many Models, Mac OS X (10.4.10)

Posted on Aug 31, 2007 5:41 PM

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Answer 1

Aug 31, 2007 7:23 PM in response to MacRat

Sorry, but no. The computer will only recognize up to 2GB total. The 1GB modules can be used, but only two.

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Answer 2

Nadav

Level 3

566 points

Oct 7, 2007 3:38 PM in response to Keith Gaboury1

Hello,

Isn't there a way to make it work? I am sure there has to be someone out there who moddifed or hacked the controller to recognize more than 2gb?

For me, 2gb is great, coming from a digital audio G4 733 with only 768MB memory.

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Answer 3

Dec 3, 2007 1:46 PM in response to Nadav

hi Nadav,
I'm trying to upgrade my g4 mdd 1,25 DP, but somehow when I've installed a 1Gb memory stick, my computer freezes randomly. Did you have this problem?? What brand of memory did you install?? I used Kensington.
greets,
thomas

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Answer 4

Nadav

Level 3

566 points

Dec 6, 2007 11:27 PM in response to tttttttttttt

as I mentioned to you, Kensington doesn't work. Personally, I wouldn't put Kensington in any of my macs. Their memory just doesn't cut it!

goto mac-pro.com and see for yourself that 1GB DIMMS will work in the MDD macs.. the only problem is this:

it will only work on dual MDD macs of 1.25 and 1.42
they have to be installed in PAIRS! No other memory modules other than those can be present. For example..

you can't put 1GB dimm in with a 512MB.. it has to be 2 DIMMS IN PAIRS! But, once you do this, you can't go any higher than 2GB, though I suspect it might be possible to go beyond 2GB maybe to 2.5 or 3.

who knows?

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