[Putta]

So, I tried installing a 128Mb chip in my girlfriends 600Mhz ibook (I think late 2001 model). It doesn't show up when I do the about this mac thingy.

I then tried installing another that I had around and the same thing happened.

This seems pretty serious no? Is there anything I can do as the machine is painfully slow in Mac OS X. Indeed, I wanted to buy a 512 but don't want to bother if the logic board (or other such component) is f@£ked.

Any help is as always appreciated...

[ibook_steve]

If the machine doesn't recognize two different sticks, then there certainly could be something wrong with the DIMM slot. Take it to a Mac Genius at an Apple Store so they can try out other memory sticks. If it doesn't work, you're looking at a logic board replacement.

Steve

[radarbob]

We were given a 128MB memory simm when we bought our 700MH iceBook. It was not recognized either. The fella who swapped out the memory said, as I understand it, the iBook (other Macs too I suppose) read the "name" of that memory module and compares it to an internal list of memory chips. If the chip was not on this list, the computer will refuse to recognize it. So it's not necessarily a matter of electrical compatability.