iBook G3 Dual USB not recognizing new RAM

[tommer419]

Hi, I'm new here so go easy on me.

I have an iBook G3 Dual USB with 256MB of RAM currently (128 on LB, and 128 in the user accessible slot under the keyboard). I bought a 512MB chip on eBay that meets the exact specs of the required RAM (512MB PC133 SDRAM SODIMM 3.3V) but when I insert it into the RAM slot and turn on the iBook, it says in About This Mac that I only have 128MB of RAM. Any suggestions to what I can do, or is the chip possibly not compatible with Apple?

 

[d88co88]

Are you absolutely sure you seated it properly?

 

[OrangeSVTguy]

Hi, I'm new here so go easy on me.

I have an iBook G3 Dual USB with 256MB of RAM currently (128 on LB, and 128 in the user accessible slot under the keyboard). I bought a 512MB chip on eBay that meets the exact specs of the required RAM (512MB PC133 SDRAM SODIMM 3.3V) but when I insert it into the RAM slot and turn on the iBook, it says in About This Mac that I only have 128MB of RAM. Any suggestions to what I can do, or is the chip possibly not compatible with Apple?

Sounds like you bought the high-density memory. Do you have the link to the auction that you won? Those iBooks were picky with memory so it's always best to stick with a name brand manufacturer. Crucial, OWC, Kingston... etc.