Date: Sat, 11 Oct 2003 13:43:23 -0700 From: David Klaus <[EMAIL PROTECTED]>
I have a question regarding the PowerCenter Pro series of computers. A friend of mine has one and it has a 2 GB SCSI drive. What type of SCSI connection does this drive use?
This would be a 50 pin ribbon connector running at either 5MBps or 10MBps.
Technically, the connector is an IDC connector which is too disturbingly close to IDE for comfortable use--too much room for confusion. But there's no relationship between IDC and IDE except that IDE drives use a 40 pin IDC connector and SCSI drives use a 50 pin IDC connector.
On the PowerCenter Pro computer the internal (and external) SCSI is 5 MB/s. It is unenhanced SCSI-2 which runs at 5 MB/s maximum and there is only one bus, so the internal connector and the external connector are on the same physical SCSI bus.
Of all the Power Computing machines, only the Power 80/100/120 (NuBus PowerMacs), the PowerWave and the PowerTower Pro have two SCSI busses with the second, internal-only bus supporting 10 MB/s (Fast SCSI-2).
The PowerCurve, PowerCenter, PowerTower, PowerCenter Pro and PowerBase all have a single 5MB/s SCSI bus with both an internal and an external connector.
Jeff Walther
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