Specifications
Page 29Installation Instructions: Roadrunner 030 and 040 AM-2000M Upgrade
11.3Connecting the 50-Pin SCSI Interface Cable
Your computer’s existing 50-pin SCSI interface cable does not have to be replaced.
However, because the cable is not quite long enough to reach the SCSI port on the
Roadrunner, a short extension cable (part number DWB-10313-00) has been included
in your installation kit. One end of this cable plugs into the 50-pin J3 connector on the
Roadrunner and the other end of the cable plugs into the end of your existing SCSI
interface cable. Using the red stripe on the cables as a reference, make sure all cable
connections are made pin-1 to pin-1.
11.4Connect DC Power Cable to the Roadrunner Board
The Roadrunner board has a standard 4-pin DC power connector. Simply take one of
the 4-pin power cables extending from your power supply and plug it into the
Roadrunner board. Although power connectors are keyed, with extra force they can be
installed incorrectly, so be careful.
12.0BOOTING THE NEW ROADRUNNER HARDWARE
In order to perform the steps outlined in this section, your disk drive must be properly
configured with a bootable Roadrunner compatible AMOS operating system. If you are
using your existing drive, the instructions in this section assume that you have already
configured your software, based on the instructions in Appendix C, prior to installing the
Roadrunner hardware.
If you installed a new SCSI disk drive that was pre-loaded with a bootable Roadrunner
compatible copy of AMOS, your computer is ready to boot.
SCSI drives factory loaded with a bootable Roadrunner compatible AMOS operating
system are configured with the simple dispatcher, SIMRR.SYS. The simple dispatcher is
intended for temporary use only. To configure the high performance SCSI dispatcher,
you must purchase the PIC for the dispatcher from Alpha Micro and configure it as
described in Appendix C.
Turn the computer’s power switch to the on position and your Roadrunner hardware will
start the boot process just as your old CPU board did. If the SCSI dispatcher was not
defined in your system initialization command file prior to turning off the computer and
removing your old CPU board, an error message similiar to this:
?The SCSI dispatcher must be defined in order to use this driver
will be displayed on your terminal. This error will be displayed each time a DEVTBL
statement for a SCSI magnetic tape drive is encountered in your system initialization
command file. While this error will not prevent the computer from booting, none of your
magnetic tape devices will work until the dispatcher is defined.
PDI-00172-40, Rev. A05