Dick- The limit is per drive- 137 GB (28 bit Logical Block Addressing -LBA-) for ATA-4 and ATA-5 ATA-6 came along and introduced 48 Bit addressing, bringing the possibility of having terrabytes of storage on a single disk. hope that helps a little sandor ----------------------------------- On May 4, 2004, at 8:54 AM, Richard Kriss wrote: > I did as suggested and found this G4-450 AGP has ATA-4's. I currently > have a > 20 GB and 40 GB Hard Drives installed. Does that mean the the Max I > can use > is a 60 GB and 60GB or can I go up to 120 GB and 120 GB? > > The reason for asking is I use one drive as a primary and the other as > a > secondary or backup drive. I use CCC to backup the primary to the > secondary > and was thinking bout getting two 120 GB drives. > > The 120 barrier is confusing. > > Dick > > > On 5/4/04 7:13 AM, "Power Macintosh G4 List" > <G4 at lists.themacintoshguy.com> > wrote: > >> From: Jim Pacyga <jim.pacyga at earthlink.net> >> Subject: Re: [G4] posting, please? >> Date: Mon, 3 May 2004 22:11:01 -0700 >> >> Go into the System Profiler (hopefully you have OS X 10.3). If you go >> under the Hardware->ATA section on the left hand nav bar, you will get >> the ATA device tree. > > > ---------- > G4ist, a listserv for discussion of everything G4. > FAQ at <http://www.themacintoshguy.com/lists/G4.html>. > Send a message to <G4-DIGEST at themacintoshguy.com> to switch to the > digest. > > XRouter | Share your DSL or cable modem between multiple computers! > Dr. Bott | Now $139.99 <http://www.drbott.com/prod/xrouter.html> > > Dr. Bott LLC 4-port USB Hub in translucent Graphite! > Dr. Bott LLC <http://www.drbott.com/prod/ghub.html> > > Small Dog Electronics http://www.smalldog.com | Canon Digital > Cameras | > --Quicksilver & refurbished G4's arriving daily! | and Camcorders!! > | > > MacResQ Specials: LaCie SCSI CDR From $99! PowerBook 3400/200 Only > $879! > Norton AntiVirus 6 Only $19! We Stock PARTS! <http://www.macresq.com> > > OS X News, Dr.Mac, Forums, Tutorials, Tips, Hints, FAQ?s - > http://www.osxfaq.com >