Welcome to the MacNN Forums.

If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below.

You are here: MacNN Forums > Hardware - Troubleshooting and Discussion > Mac Desktops > Maximum Ram in G4 iMac

Maximum Ram in G4 iMac
Thread Tools
Junior Member
Join Date: Mar 2003
Status: Offline
Reply With Quote
Oct 1, 2005, 11:59 AM
 
Has anyone added a 1 gig ram stick to their G4 iMac 1.25. Seems most places say that the max ram is 1 gig but I wonder if I were to add a 1 gig module, would it work ok and will it actually allow me to use 1.25 gigs?

Thanks
     
Forum Regular
Join Date: Aug 2005
Status: Offline
Reply With Quote
Oct 1, 2005, 01:10 PM
 
The G4 iMacs that take DDR memory (1 GHz and up) can take a maximum of 2 Gb RAM -- 1 Gb per module. The user accessible socket is a DDR PC2700 200 pin SODIMM socket

The internal socket is a 184-pin DIMM PC2700 socket, and if a recommended technician-only install, as the machine has to be comprehensively disassembled and the cooling will mess up if it is not put back together correctly.

(The 700 and 800 MHz iMac G4s use PC1233 RAM and are NOT capable of going beyond 512 Mb per socket)

(yes, I know the 1st 17" iMac G4 took DDR PC2100 but PC2700 works)

Thanks
Trevor
CanadaRAM.com
     
Junior Member
Join Date: Mar 2003
Status: Offline
Reply With Quote
Oct 1, 2005, 06:32 PM
 
Thanks Trevor... I think I"ll add a 1 gig module... confusing to me why crucial doesn't offer it on the ram options for the G4 1.25?
     
Forum Regular
Join Date: Aug 2005
Status: Offline
Reply With Quote
Oct 1, 2005, 07:21 PM
 
Originally Posted by Spartan24
Thanks Trevor... I think I"ll add a 1 gig module... confusing to me why crucial doesn't offer it on the ram options for the G4 1.25?
Crucial is sticking to the official (and outdated) Apple spec for the machine. Go with a reputable vendor that tests and guarantees compatibility with your model iMac, offers a lifetime warranty and a no-cost return if it does not work.
     
Junior Member
Join Date: Mar 2003
Status: Offline
Reply With Quote
Oct 10, 2005, 05:35 PM
 
Thanks again for your comments CR.. I have installed the 1 gig module and can attest that the Mac does recognize it and use the full 1.25 GB.. Seems a lot "snappier" now! LOL

Actually I was getting quite a number of pageouts and frequent beachballs with 768 megs and apparently that extra 512 module was going bad or something.. The new ram seems to have cured this problem..
     
Fresh-Faced Recruit
Join Date: Aug 2006
Status: Offline
Reply With Quote
Aug 8, 2006, 04:34 PM
 
Couple of questions for you 1.25 GHz 17" G4 iMac users & friends:

Is there any issue with having the built-in (184 pin non-accessible) memory just being 256 MB and the user accessible (200 pin module) memory being 1 GB?

I have 768 MB (256 + 512) total RAM today... will replacing the 512 MB module with 1 GB (for a total of 1.25 GB) be enough for a noticable difference, or is it not worth doing unless I replace both?

Thanks! I've been pretty happy with the G4, but Safari definitely seems slow, and I'm thinking a memory boost would be the quickest and easiest way to address that.
     
Posting Junkie
Join Date: Jan 2006
Location: Seattle, Washington
Status: Offline
Reply With Quote
Aug 8, 2006, 06:28 PM
 
It will be a noticeable difference with apps like Final Cut and other CPU intensive things. But I don't think it would make Safari any faster though, it might though if you have a lot of other apps running while using Safari.
     
   
Thread Tools
Forum Links
Forum 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
Trackbacks are On
Pingbacks are On
Refbacks are On
Top
Privacy Policy
All times are GMT -5. The time now is 05:12 AM.
All contents of these forums © 1995-2011 MacNN. All rights reserved.
Branding + Design: www.gesamtbild.com
vBulletin v.3.8.7 © 2000-2011, Jelsoft Enterprises Ltd., Content Relevant URLs by vBSEO 3.3.2