[HM] Re: G4 Upgrade Project

[Charlie Nowlin]

Howard --

The acronym IDE stands for "Integrated Drive Electronics" The acronym 
EIDE stands for "Enhanced Integrated Drive Electronics" . It is a 
specific Western Digital Implementation of the ATA-2 Standard. (See 
page 1481 of "Upgrading and Repairing Pcs" by Scott Mueller, Eleventh 
Edition, ISBN 0-7897-1903-7). I could continue with detail of the 
relationship of ATA-2 to ATA with references to other page 
references. But the bottom line is, use your hard drive an do not 
worry.

Apple seems to prefer setting hard drive jumpers to "Cable Select" 
rather than the traditional master-Slave setting of the IBM world. 
The manual you got with your drive should tell you where to put the 
small shorting blocks to do that.

Your CD ROM probably has an "ATAPI" interface. The acronym ATAPI 
stands for "AT Attachment Packet Interface." This is a specification 
that defines device side characteristics for an IDE connected 
peripheral such as a CD ROM. ATAPI is essentially of the SCSI command 
set to the IDE interface.  (See page 1458 of above reference) I 
suggest you put your CD ROM on the first connector on a 2-connector 
cable.  This is what Apple did on my G3 even though the end connector 
was not used. On a cable select system, the middle device is the 
slave and the end device is the  master.   Apple's CD ROM driver will 
take care of the rest.
Regards,  Charlie