zz-301 - Keyboard Error
None
Keyboard
failure. (zz
represents the
Keyboard
Scan Code.)
1. A key is
stuck. Try to
free it. 2.
Replace the
keyboard.
303 - Keyboard Controller Error
None
System
board,
keyboard, or
mouse
controller
failure.
1. Run
Diagnostics. 2.
Replace failed
assembly as
indicated.
304 - Keyboard or System
Unit Error
None
Keyboard,
keyboard
cable, or
system board
failure.
1. Make sure
the keyboard is
attached.
2. Run
Diagnostics to
determine
which is in
error.
3. Replace the
part indicated.
40X - Parallel Port X Address
Assignment Conflict
2 short
Both external
and internal
ports are
assigned to
parallel port
X.
Run the
System
Configuration
Utility and
correct.
601 - Diskette Controller Error
None
Diskette
controller
circuitry
failure.
1. Make sure
the diskette
drive cables are
attached.
2. Replace the
diskette drive
and/or cable.
3. Replace the
system board.
605 - Diskette Drive Type Error
2 short
Mismatch in
drive type.
Run the
System
Configuration
Utility to set
the diskette
type correctly.
Both external Run the
Page 7 of 13
Cisco - Cisco MCS-78XX Boot Error Codes
10/2/2008
http://kbase.cisco.com/paws/servlet/ViewFile/12138/mcs_boot.xml?convertPaths=1
