Macbook Pro Logic Board Replacement now only shows 3gb of memory

badcrc32

macrumors regular
Original poster
Nov 22, 2007
126
0
I had 4gb of memory showing before my logic board was replaced. I looked last night and noticed that I only have 3gb of memory showing. I have upgraded to snow leapord too, however these are the only 2 changes that occured.

I am thinking the replacment part was a board that is older and not 4gb compatible....Any comments here.

:apple:
 

badcrc32

macrumors regular
Original poster
Nov 22, 2007
126
0
?

I had 4gb of memory showing before my logic board was replaced. I looked last night and noticed that I only have 3gb of memory showing. I have upgraded to snow leapord too, however these are the only 2 changes that occured.

I am thinking the replacment part was a board that is older and not 4gb compatible....Any comments here.

:apple:
Got to be some genius out there that can answer this....
 

harperjones99

macrumors 6502
Nov 3, 2009
497
0
I would bet you are right and the replacement part was older and doesnt support it. I would have them fix that.
 

LedCop

macrumors regular
Apr 7, 2008
249
0
Click the apple in the upper left hand corner, then click About This Mac.

Core Duo or Core 2 Duo?
A Core Duo would have a limit of 2GB of RAM and thus wouldn't show 3GB. So the OP most definitely has a Core 2 Duo computer.

OP, what are the specs of your MBP?
 

maflynn

Moderator
Staff member
May 3, 2009
65,874
32,198
Boston
I'd say either one of your ram modules went south or the logic board that was added was defective

Either way a call (or a trip) to apple is needed.

Of course you can double check to see if the modules are seated properly and the connections are tight, perhaps one is a tad loose.
 

badcrc32

macrumors regular
Original poster
Nov 22, 2007
126
0
Fyi

I will update this tonight with my macbook infront of me. I appreciate all the assistance!
 

badcrc32

macrumors regular
Original poster
Nov 22, 2007
126
0
what does it say under System Profiler > Memory

does it show both 2gb ram sticks?

BANK 0/DIMM0:

Size: 2 GB
Type: DDR2 SDRAM
Speed: 667 MHz
Status: OK
Manufacturer: 0x7F7F7F7F7F9B0000
Part Number: 0x000000000000000000000000000000000000
Serial Number: 0xFFFFFFFF

BANK 1/DIMM1:

Size: 1 GB
Type: DDR2 SDRAM
Speed: 667 MHz
Status: OK
Manufacturer: 0xCE00000000000000
Part Number: 0x4D342037305432393533455A332D43453620
Serial Number: 0x762453D6
 

AppleNewton

macrumors 68000
Apr 3, 2007
1,697
84
1 Finite Place
Yeah it could be either they; a) mistakenly put in a different memory module b) the memory module is bad c) the logic board is not reading the memory slot properly.

so ithink you warrant a repair to either fix the board and/or replace the modules.

goodluck


BANK 0/DIMM0:

Size: 2 GB
Type: DDR2 SDRAM
Speed: 667 MHz
Status: OK
Manufacturer: 0x7F7F7F7F7F9B0000
Part Number: 0x000000000000000000000000000000000000
Serial Number: 0xFFFFFFFF

BANK 1/DIMM1:

Size: 1 GB
Type: DDR2 SDRAM
Speed: 667 MHz
Status: OK
Manufacturer: 0xCE00000000000000
Part Number: 0x4D342037305432393533455A332D43453620
Serial Number: 0x762453D6
 

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