Description: Apple II High-Speed SCSI Card: Setting SCSI ID (11/96)
Header: Apple II High-Speed SCSI Card: Setting SCSI ID (11/96)

 Article Created: 18 January 1995
 Article Reviewed/Updated: 15 November 1996

 TOPIC -----------------------------------------------------------

 This article discusses how to change the Apple II High-Speed SCSI Card's SCSI
 ID switch settings.

 DISCUSSION ------------------------------------------------------

 Switch 1 turns on and off DMA (Direct Memory Access). See the article "Apple
 II High-Speed SCSI Card: Setting DMA" for more information on this  subject.

 The computer's SCSI ID number is determined by the positions of switches 2,
 3, and 4 on the SCSI card. Follow these steps to reset the computer's SCSI ID
 number:

 1. Switch the computer off, but leave the power cord plugged in.

 2. Choose an appropriate SCSI ID number for the computer. If you are
   using a LaserWriter IISC, Personal LaserWriter SC or Apple Scanner, use
   the settings for SCSI ID 2.

 3. Refer to the information that follows for the correct position of
   switches 2, 3, and 4.


 Switch indication
 -----------------
 0 = Open or off         x = Closed or on

 SCSI     SCSI     SCSI     SCSI   SCSI     SCSI     SCSI     SCSI
 ID 0     ID 1     ID 2     ID 3   ID 4     ID 5     ID 6     ID 7

 OPEN     OPEN     OPEN     OPEN   OPEN     OPEN     OPEN     OPEN
 1234     1234     1234     1234   1234     1234     1234     1234
 ----     ----     ----     ----   ----     ----     ----     ----
 000      00       0 0      0       00       0         0
 x        x  x     x x      x xx   xx       xx x     xxx      xxxx


 4. Be sure to follow the installation instructions in the Apple II High-Speed
   SCSI Card Owners Guide to install the SCSI card.


 Article Change History:
 15 Nov 1996 - Reviewed for technical accuracy, revised formatting.
 Copyright 1995-96, Apple Computer, Inc.
 Keywords:  hts