Re: ide/eide/atapi

From: Gary Hsueh <ghsueh_at_mac.com>
Date: Tue Nov 18 2003 - 17:00:09 PST

On Tuesday, November 18, 2003, at 03:02PM, Michelle Bautista <micmac74@socrates.berkeley.edu> wrote:
>I'm looking to add some drives to some mac towers.
>
>CD-RW to a blue and white g3.
This would be fine as a replacement for the existing optical drive. xlr8yourmac.com has a pictorial guide. IDE/EIDE/ATAPI all use the same connector, you can treat them synonymously. Avoid connecting a hard drive to the same cable as an optical drive, though--the optical drive will slow the bus speed, and the hard drive, a lot (most likely it is an EIDE bus at 16 MB/s).

>extra HD to an AGP graphics G4
An UltraATA/133 hard drive is compatible with the connector in the G4, but it will only operate at ATA/66 speeds, AND both hard drives (new and old) will be sharing the same 66 MB/s bus. Consider that a fast ATA hard drive moves data at 40 MB/s sustained rate, and your existing drive is probably a little slower (20-30 MB/s). If they both will be constantly reading and writing at the same time, then you could have a performance issue. Otherwise, I think it probably will not be an issue.

Gary

>-Michelle
>
>====
>Michelle Bautista
>510-643-0657
>Department Onsite Computing Support (DOCS)
>U.C. Berkeley

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Received on Tue Nov 18 17:01:32 2003

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