Re: Memory slot location

2008-09-29 Thread Alexander MacLeod

On Mon, Sep 29, 2008 at 10:53 AM, hillhippy [EMAIL PROTECTED] wrote:

 I'm going to replace the optical drive in my sister in laws iMac G4
 1.25Ghz 17.  While I've got it taken apart I want to max out the RAM
 and upgrade the hard drive.

 The problem is the machine has two DIMM slots one under the base plate
 and one on the mother board.  They each use different memory form
 factors SO-DIMM and SDRAM.  The slots are numbered DIMM 0-J22 and DIMM
 1-J20, But there is no information that I can find about which jack is
 which (even Apples service source fails to list the jack numbers).  I
 need this information to buy the correct memory prior to taking the
 machine apart (which I only want to do once).  I'm sure that I have
 missed something obvious.

The slot on the motherboard uses standard desktop PC2700 DDR RAM with
a maximum size of 1GB. Here's a good price, especially for Crucial
stick:

http://www.newegg.com/Product/Product.aspx?Item=N82E16820145086

The user-accessible slot underneath the bottom plate uses PC2700
SODIMM Laptop memory, also with a maximum size of 1GB, so you can max
the memory at 2GB. Here's another good price, also for a Crucial
stick. Free shipping on both, too:

http://www.newegg.com/Product/Product.aspx?Item=N82E16820145068

HTH

Alex

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Re: Memory slot location

2008-09-29 Thread Jim Scott


On Sep 29, 2008, at 7:53 AM, hillhippy wrote:


 I'm going to replace the optical drive in my sister in laws iMac G4
 1.25Ghz 17.  While I've got it taken apart I want to max out the RAM
 and upgrade the hard drive.

 The problem is the machine has two DIMM slots one under the base plate
 and one on the mother board.  They each use different memory form
 factors SO-DIMM and SDRAM.  The slots are numbered DIMM 0-J22 and DIMM
 1-J20, But there is no information that I can find about which jack is
 which (even Apples service source fails to list the jack numbers).  I
 need this information to buy the correct memory prior to taking the
 machine apart (which I only want to do once).  I'm sure that I have
 missed something obvious.

 Thanks for your help

I have the very same 17 G4 1.25 GHz iMac.

J20 is the SDRAM slot on the top side of the logic board. Replacing  
this requires that you remove the 4 T15 screws that hold the bottom to  
the top part of the case. (Don't forget to use new thermal paste and  
to tighten these 4 screws to 17 inch pounds when you reassemble the  
case.)

J22 is the user-accessible SO-DIMM slot that requires only that you  
loosen the four captive Phillips head screws and remove the bottom  
plate. HTH.

Jim Scott

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