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You are here: MacNN Forums > Hardware - Troubleshooting and Discussion > Mac Notebooks > Powerbook Memory Woes

Powerbook Memory Woes
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spatterson
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Join Date: Sep 2003
Location: Reno, Nevada
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Aug 10, 2005, 12:44 PM
 
Hey guys, ok I know another question about PowerBook memory, sorry about that. Trust me I did my best with searching for answers within our forums.

What happened is that I purchased a 1 GB Kingston memory chip from MacMall. First off, originally I had the memory that came with the laptop when I purchased it. Two 256 MB chips were installed originally. I then took out one of the old 256 MB chips, and replaced it with a 1 GB chip. After turning on the computer and going to “About my Mac”, I noticed that only 256 MB of memory was being recognized by the computer. Why wasn’t my 1 GB chip showing? So I swapped chips, and placed the 1 GB chip on the bottom and placed the 256 MB chip on the top. This time the computer recognized 1 GB of available memory. So why wasn’t the computer recognizing the 256 MB chip? I have no clue why they are not working together. Do any of you have any expeience and solutions to my problem?

Cheers!
     
ibook_steve
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Join Date: Oct 2001
Location: San Jose, CA
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Aug 10, 2005, 12:58 PM
 
You don't mention it, but I'm betting you have a 15" Powerbook. Search for posts about failing slots in these machines.

Steve
     
d.fine
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Join Date: May 2004
Location: on 650 cc's
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Aug 10, 2005, 01:12 PM
 
Sounds like the top slot is defective. This seems to be a know issue with 15" PB's. Can you give us some more info about what model PB you have...

stuffing feathers up your b*tt doesn't make you a chicken.
     
spatterson  (op)
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Join Date: Sep 2003
Location: Reno, Nevada
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Aug 10, 2005, 01:22 PM
 
I have a 15" AL PB 1.25gHz

Strange though as when there were two 256 MB chips installed it registered 512 MB aval ram.
     
   
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