Robert Alexander5

Q: Mac Pro (Early 2008) not recognizing 4 new memory Modules

Help Please.

 

I have a :

Mac Pro (8-core Xeon 5400 Series) 2nd Gen. Early 2008

 

I installed 2 pair of:

Crucial Technology CT2CP51272AP80E 8 GB (4 GBx2) Apple Specific DDR2 PC2-6400 CL=5 Fully Buffered ECC DDR2-800 1.8V 512Meg x 72 Memory Kit

 

http://www.amazon.com/gp/product/B00157YNNM/ref=oh_details_o00_s00_i00?ie=UTF8&p sc=1

 

Upper:

 

Slot 1: Original 1GB Memory

Slot 2: Original 1GB Memory

Slot 3: New 4GB Memory Module

Slot 4: New 4GB Memory Module

 

Lower:

Slot 1: New 4GB Memory Module

Slot 2: New 4GB Memory Module

Slot 3: <empty>

Slot 4: <empty>

 

I fired up the computer, it still only reads 2GB total memory and in profiler says slots that son't have the original 1GB modules in them, are blank.

 

I also tried removing the old 1GB modules and putting all new one sin slots 1 & 2, top and bottom, and the Mac wouldn't even mac the Mac sound when powered on.  Anyone seen this before? The merchant says I have the right memory, is this true?

 

Its bizzare that not one of the new modules shows up right..?

 

I seated them down firmy, they clicked and the sid things came up...

 

Bob Alexander

Mac Pro Dual 2.88GHz & iBook G4, Mac OS X (10.5.2), iBook still has 10.4.11

Posted on Dec 10, 2013 2:27 PM

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