I've got an 800 MHz Ibook G3 that had the logic board failure -- I shimmed it and now it turns on, but to the blinking question mark. Tried to reload OSX software, or to use disk repair, but it finds no drive to repair. I'm thinking hard drive needs replaced. I found a pretty cheap 700 MHz drive from an Ibook -- are the 800 and 700 drives interchangeable?
I'd really like to eke a bit more life out of this G3, if only as a websurfing machine.
If you mean the hard drive, yes they are compatible. Most laptop hard drives are compatible, right now my iBook is using the drive from a dead PC laptop.
It should be happy with any 2.5" PATA drive up to 120GB. The most common exceptions to this rule are PC Vendor-branded drives. Stay away from Compaq and HP drives in particular.
IDE, ATA and PATA are all the same. Or at least they are interchangeable. It was called IDE originally, then for some reason it got changed to ATA when they first bumped the speed of it up. There were then several more speed bumps, usually labelled as ATA66, ATA100 etc or ATA 3, ATA4 etc. All these work on the same bus. Higher the number, higher the top speed. The P in PATA simply exists to diffrentiate from SATA. Parallel and Serial. Serial is different.