my G4 is sick

[David]

Sonnet tech, Acard, or try OWC (macsales.com) all make good ones or buy from a supplier.

You might want to see if there's a firmware update.

[craig]

My machine is sick... I have many problems which results in an IO error. Right now I have a PCI ATA card that allows an additional 4 ATA drives... I think this is the culprit of my problems. Does anyone have any recommendations on a good brand of PCI ATA card? I want to have 4 250gig internal work drives with one main HD for the programs ect. I also have an internal super-drive. Any advice or solutions will be appreciated. Thank you.