On Monday, Aug 4, 2003, at 21:45 America/Los_Angeles, Charles Martin wrote: > >> From: Translation <spanishtransenglish at hotmail.com> >> >> I bought used this 500mhz ibook. Everything works fine. I tried to >> upgrade >> the ram with 4 different ram sticks. 1 128 one from a wallstreet, a >> 256 from >> a Pismo, a 256 from a TiBook, and today, and original apple 256 ram >> stick >> pull from a 14 inches iBook. None of them work. I go to get info and >> system >> profile and only shows the default 128, the slot as empty. > > It is WAY more likely that you're not pushing the RAM in fully so that > it's properly seated than it is that you have a bad RAM slot. Actually, this happened with me. I got RAM where the pins seemed too thin for the RAM slot in my iBook Dual USB. I would push it in all the way, but it wouldn't register reliably. When I checked the slot, the RAM module would never feel snug. I ended up swapping the RAM with the vendor for one that seated snugly.