> From: [EMAIL PROTECTED] > Message-ID: <[EMAIL PROTECTED]> > Date: Sun, 8 May 2005 00:17:57 EDT > Subject: Re: [PCI] SCSI
>> The internal SCSI chain supports "Fast" SCSI, which is capable of >> transferring data at up to 10 MB per second (twice the rate of the external >> standard SCSI chain). If you obtain a SCSI device that supports "Fast" SCSI, >> you should receive faster performance if it is connected to the internal >> SCSI chain. > > Devices 0 and 1 are reserved for hard drive and CD-ROM, respectively; > Device 7 is reserved for the Mac itself. > > Devices 2, 3, 4, 5 and 6 are available. Well, if "reserved " means "as out of the factory" is this right for the 7600 (the pdf I quoted was a User Manual spec pdf on this model...)? My experience has been CD is 3 on the 7300 and 7600 models. But I must admit: I have never had one out of the factory! > >> The external SCSI chain supports up to seven external SCSI devices. > > No, only six, as device 7 is reserved for the Mac itself. > Surely it is seven. 0,1,2,3,4,5,6 are 7 in total (as you seem to recognize in your later comments) > >> * Although five SCSI ID numbers are available for assignment, only one other >> SCSI device can be connected to the internal SCSI chain. > > Incorrect. > > All six may be used, and this was the case back in the Q950 and the 9600, > and it is still the case in any Mac which includes a SCSI bus, internal > or external. > Yes, I wondered about this and it occurred to me they said this because of power restrictions? Again, this pdf was for the 7600. In fact, there is scarcely room in the 7600 for more than 2HDs (without taking out the floppy) but I think you are right and (apart from room) take more... David Elmo -- PCI-PowerMacs is sponsored by <http://lowendmac.com/> and... Small Dog Electronics http://www.smalldog.com | Refurbished Drives | -- Sonnet & PowerLogix Upgrades - start at $169 | & CDRWs on Sale! | Support Low End Mac <http://lowendmac.com/lists/support.html> PCI-PowerMacs list info: <http://lowendmac.com/lists/pci-powermacs.shtml> --> AOL users, remove "mailto:"; Send list messages to: <mailto:[email protected]> To unsubscribe, email: <mailto:[EMAIL PROTECTED]> For digest mode, email: <mailto:[EMAIL PROTECTED]> Subscription questions: <mailto:[EMAIL PROTECTED]> Archive:<http://www.mail-archive.com/pci-powermacs%40mail.maclaunch.com/> iPod Accessories for Less at 1-800-iPOD.COM Fast Delivery, Low Price, Good Deal www.1800ipod.com
