You did not say which product you bought. If it was from Siig They make two G4 products SIIG UltraATA 133/100 Pro High-speed dual channel Ultra ATA 133/100 controller for the Power Mac G4 Part #: SC-MP4A12 * this one states not compatible with G4 DP i assume you bought this one. I would go with SATA drives are cheaper and faster SIIG Serial ATA PCI-M High-speed dual-channel PCI-to-Serial ATA host adapter for Power Mac systems Part #: SC-SATM12 Model #: CN2523 Is it a Sawtooth or a gigabit ethernet, did they make a DP 500 Sawtooth? Go here for a list of controllers https://eshop.macsales.com/MyOWC/Models.cfm?TI=5941 Brian G4 gigE 1.0 GHz Powerlogix, 1 GB RAM On Aug 7, 2008, at 12:42 PM, Victor Jackson wrote: > > Hi, > I just got a G4 DP500 (AGP) Sawtooth, and I am looking for a hard > drive controller to let me expand my drive size past 130 gigs. I > bought one from SIIG but it was not compatible with the dual > processors of the G4. Does anyone have a recommendation for one > that is. > > Thanks > > > _______________________________________________ > G4 mailing list > G4 at listserver.themacintoshguy.com > http://listserver.themacintoshguy.com/mailman/listinfo/g4