ibook G3 flashing question mark after replaced hard drive...

Hello,

If disk utility is not showing your new hard drive, then there has to be a fault with the iBook logic board or you don't

a fault with the ribbon cable used to connect the drive with the logic board, but I doubt that would suddenly stop working. Really does sound like a problem with the logic board and I would suggest a diagnose from the Apple Store or an authorized Apple service center.

If you have an Apple Hardware Disk, try using that to see if there is any faults shown up.

Hello,

I find that interesting that no matter what key you press it goes into the question mark.

You must be able to boot from a disk, as you have established nothing appears in disk utility.

Which means you must have the ability to hold down the 'C' key to book from the tiger disk.

Try replacing the cable, but I fear that it could be a problem with the logic board.

The iBook in question, wouldn't be a 14" Screen by any chance?

Hmm, the concern here would be the fact that neither the optical drive or hard drive seems to be recognized.

This would indicate a fault with the Logic Board. I still can't help wondering if the cable to the logic board is connected properly or at fault here. I've had a PowerBook which had a faulty cable. Hard for me to detect when I had no optical drive to work with. I would suggest trying another cable first. If not then it has to be a fault with the Logic Board.