Dear Ian Thanks very much for that Ian. I did give the impression that I intended to run a CD with an IDE but what I meant by freeing up a PCI slot is that I'd replace my internal CD drive plus the SCSI CD burner that's in 1 slot with an internal CDR drive which would make room for the IDE controller.
But the big tip is "The bus will run at the speed of the slowest device." I knew this was true of SCSI chains but it's news that it holds true for IDE connections. It means I'll definitely be putting the new HD on a card as the OEM HD in the box now runs at 33 mb/s! Thanks again for your help Michael O'Brien > From: "ian reynolds" > > I'm wondering whether to free one up (would involve replacing/upgrading > the CD drive) as it occurs to me that running the 2 drives as > master/slave from one bus might not be the optimum route. > > > Dear Micheal, > > If I'm right, if the mac bus is the same as pc. The bus will run at the > speed of the slowest device. So If you have a hard drive on the same one > as the cd drive it will run at pio mode 2 (33 mb/s) Where as the hard > drive is probably a pio mode 5 drive (100mbs). So the ata cables may be > different as well. It is normal to have them on the same bus so they > bothe work in pio mode 5 . > > Hope that helps > > Cheers > > Ian Reynolds =============================================================== GO TO http://www.prodig.org for ~ GUIDELINES ~ un/SUBSCRIBING ~ ITEMS for SALE
