Specifications
Page 29Installation Instructions: AM-137 Board AM-1600/1400 Upgrade
14.0OPERATIONAL NOTES
Under normal operating conditions, the RUN light on destop computers (without AM-137
hardware installed) will remain lit at all times. With the AM-137 hardware installed and
the system booted, you’ll notice the RUN light on your computer’s front panel may not
be lit. This is because the AM-137 hardware uses the RUN light as an activity light and
during periods of no activity the RUN light will go out.
When your computer boots, a number of status codes are displayed on the computer’s
front panel. The following tables show the codes generated by the AMOS monitor, as
well as the codes generated by the boot PROMS.
For the tables on the following pages, the first digit of many status codes is shown as
"x". This digit is either 2 or 3, and identifies the device the computer is attempting to
boot from:
2 = The alternate boot device.
3 = The primary boot device.
If you have an alternate boot device selected, the first few status codes will always
begin with 2 since the computer checks the alternate device first. If there is a bootable
tape or floppy diskette in the alternate boot device, the first digit of the status codes
remains 2. If there is no bootable medium in the alternate device, the computer boots
from the primary device and the first digit of the status codes changes to 3.
PDI-00137-50, Rev. A01