Hello,
I have a 2002 Quicksilver G4/933 running Tiger with a 1TB Seagate and 640 Maxtor internal HD. I've been having a lot of issues recently starting with wake from sleep problems. It requires a shut-down with control/option/command/power. Sometimes I can't see the HD on reboot and have to start-up from the install disk, use disk utility and then restart. Sometimes the machine is very slow, like when using Eudora, windows take forever to close and if I type fast the machine can't keep up. This was never an issue previously. In fact, if it's not a hardware problem, it might be Eudora (sorry i can't give it up). Anyway to diagnose if the mobo is going bad or if it's another hardware issue. I kind of think it works better in the AM when the machine is cool.
Thanks!