Question about Apple PowerBook G4 Mac Notebook

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Memory upgrade I added 1GB memory module to each slots in Powerbook PC (1.5GHz). Computer shows not 2GB but 1.5 GB now. The 1st slot shows 1GB, the second 512 Mb. Where is the problem do you think?

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Have you tried switching the RAM cards? What happens?

Posted on Aug 16, 2008

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I have a macbook white 4.1. and I am trying to replace memorynya (2x512mb) with a memory only 1 slot with capacity of 2 GB. But after that, my macbook is always an error / stop the process


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The easiest way if your Powerbook doesn't come equipped with an Airport card or isn't capable of supporting an Airport card is to purchase this http://www.sonnettech.com/product/aria_extreme.html it slides into the PCMIA slot on your Powerbook G3 (the credit card sized slot on the side of your Powerbook G3). There's support issues and model variations on older Powerbook G3's regarding Airport Card support and they're not as readily available as a standard PCMIA wireless card. This is my best suggestion for your situation.

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The earliest MacBook (Pro) models have a limit of 2 GB. To check the specific model, in the Apple menu select about this Mac. Then press more info... . Look at the line like "Model Identifier: MacBook5,2" for my white early 2009 MacBook. If the numbers are 1,1 then for sure you have the oldest model and are memory limited to 2 GB, as the sum of both cards.
That's just like my wife's, it was a Core Duo and not the current Core 2 Duo. Works fine. I was ready to up its memory but read about this in the Apple Support Forum. It came originally with 1 stick of 512 MB, IIRC. I upgraded it to 2x1 GB for a lot more than the 2x2 GB in the newer. BTW some of the Macs between these only take 3 GB but will work with 2x2 GB just throwing 1 GB away. -Ken

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1 Answer

Add Memory to G4 Notebook


Don it's real easy.

http://www.macinstruct.com/node/162

Slim down version

  • Pop the cover and you'll see the motherboard.
  • Atach anti-static cable to chasis of pc and touch the battery pack or pc frame.
  • Put the card in the memory slot.
  • Remvoe cable adn replace cover.
  • Re-start pc.
Note:

I wouldn't fix your pc on carpet (static reasons) or while your standing wearing socks on carpet with the Mac on the table (obviously).

Sounds simple but you've never believe how may people forget.

That's it.

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Can i place a 4g and 2g stick in my macbook pro


Hello! The MacBook Pro you have mentioned can only support 4GB's total. 2GB's in the first slot, and 2GB's on the second slot.

What you may have seen by accident was that you can purchase either a 4GB kit, or a 2GB kit. Meaning a 4GB kit with 2 2GB sticks, or a 2GB kit with 2 1GB sticks.

Your best bet is to go with a 2GB stick in each slot to max out your MacBook Pro. 2GB's is the largest each slot can read.

For more information, check out the website below which has very detailed information on memory for various systems.

MacBook Pro Memory Information

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open the cpu coner u see neare processor 2 or 4 memory bank slot.those are straight near processor

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Your memory most likely hasn't physically gone anywhere. There's two possibilities:

1) You've mistakenly confused the 1.33GHz processor speed as 1.33GB RAM. Not sure that 1.33GB RAM is possible on these, as there was always 256MB RAM soldered on the motherboard, and maximum you could add would have been 1024MB (1GB) extra. That would still yield only 1280MB, though.

2) You did have 1.33GB RAM at some point previously, and the RAM chip installed in there has failed. Usually when this happens, the computer will tell you with a service tone (or series of service tones) at startup instead of the usual boot chime.

Hope this helps :)

Charles

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