Table of Contents
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Name
Function
System
Visible fault
fault
warning
Hard
Control panel
drive
activity
Memory
Identify fail-
fault 1–6
ing memory
module
Diagnos-
Displays port
tic LEDs.
80 POST codes
1–4 (LSB,
bit1, bit2,
MSB)
CPU 1 & 2
Identify fan
Fan Fault
failure
CPU 1 & 2
Identify pro-
Fault
cessor failure
5v
Identify 5v
Standby
standby
power on
state
Location
Color
Control panel
Green or
and board
Amber
rear left cor-
ner
Control panel
Green
DIMM end
Amber
rear of board
Center back
Each LED
edge of
can be
board
Off,
Green,
Amber,
Red
Front center
Amber
board
1" behind
Amber
processor
socket
Front left
Amber
board
155
Notes
•
Green =
No Fault
•
Green
Blink =
degraded
•
Amber =
critical
error or
non-
recoverab
le
•
Amber
blink =
non-
critical
Blinking =
Activity. No
action
required.
On = Fault
See the POST
code table
On = Fault
On = Fault
On = 5v
standby power
on
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