Alu PB 15" lower memory slot problem
Apple has not yet acknowledged this, but if you search for "lower memory slot powerbook", you'll find quite a few messages about this. For some reason, upgrading to 10.3.9 and/or Tiger has somehow "fried" the lower memory slot for a lot of people with 15" Alu PowerBooks (Rev. B and C according to my reading).
Apple solves the problem on a case to case basis by replacing the motherboard of the PowerBooks. Which of course SUCKS if you're out of warranty and Apple doesn't acknowledge it's their fault.
This has happened to me and I didn't really notice for some time. I have two identical 512 MB SO-DIMMs, both working fine in the upper slot, but they aren't recognised in the lower one. Strange enough: If I have both DIMMs in, sometimes they're recognised - but only until the Mac's finished booting. Then, the computer either freezes totally or gives a kernel panic.
I'm now thinking what's cheaper/better: Should I buy a 1 GB DIMM and just forget about the lower slot? Or should I give my PB away for probably more than a week and have it fixed? How much would such a motherboard cost me? Sad day for me, and I'm certainly angry about Apple.