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Another RAM question / sorry haha

Hi

I operate an early 2008 MacPro im going to upgrade.

I currently have 4GB of RAM - 4 x 1GB sticks.

I could simply buy 4 extra sticks of 1GB which fills up the 8 slots - all being matched and evenly distributed across the risers etc.

What i was wondering, what if i was to get 2 x 2GB sticks -

would i install the 2 x 2GB on the spare 2ports on riser A, OR

Do i install the 2x2GB on riser A and move the 4 x 1GB on B, OR

Do i leave the 4 x 1GB across the 2risers and install a 2gb stick on A and the other on B - is that a matched pair?

As you can see - even with all the memory posts in this forum im still no clearer in my own situation, if anyone could be kind enough to point me in the right direction it would be greatly appriciated.

Early 2008 Mac Pro, Early 2009 MacBook Pro, Mac OS X (10.5.7)

Posted on May 26, 2009 9:53 PM

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1 reply

May 26, 2009 10:28 PM in response to Uelogy2008

Hiya and wlecome to Apple discussions.
I found a discussion ( http://forums.macrumors.com/showthread.php?t=421391) that it saying in essence that a matching (suitable) pair of RAM sticks should be installed at the bottom (moving the exisiting ones up, if need be - but you should have free slots); you can find out by going to the Apple in your finder bar, clicking "About This Mac" and then "More Info"; under "memory" (in the new window) it will tell you the empty slots.
The memory wiring diagramme was here:
http://att.macrumors.com/attachment.php?s=1bc485fb68017d805b88263c72d4e023&attac hmentid=99178&d=1201245197

hope that helps

Another RAM question / sorry haha

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