Lenovo ThinkSystem D3284, Hardware Installation And Maintenance Manual

Page: 96 / 159

96 Troubleshooting and problem solving
2U enclosure LEDs
580W PCM LEDs
Under normal conditions, the PCM OK LEDs will be a constant green. See also Figure 33 (page 39) . When a fault
occurs, the colors of the LEDs will display as shown in the following table.
Ops panel LEDs
The Ops panel displays the aggregated status of all the modules. See also Figure 31 (page 37) . The Ops panel LEDs
are defined in the following table.
Table 13 PCM LED states
PCM OK
(Green)
Fan Fail
(Amber)
AC Fail
(Amber)
DC Fail
(Amber) Status
Off Off Off Off No AC power on any PCM
Off Off On On No AC power on this PCM only
On Off Off Off AC present; PCM working correctly
On Off Off On PCM fan speed is outside acceptable limits
Off On Off Off PCM fan has failed
Off On On On PCM fault (over temperature, over voltage, over
current)
Off Blinking Blinking Blinking PCM firmware download is in progress
Table 14 Ops panel LED states
Sy
st
em
P
ow
er
(G
re
en
/A
m
be
r)
M
od
ul
e
Fa
ul
t
(A
m
be
r)
Id
en
tit
y
(B
lu
e)
LE
D
d
isp
la
y
Associated LEDs/alarms Status
On Off Off X 5V standby power present, overall power
failed or switched off
On On On On Ops panel power on (5s) test state
On Off Off X Power on, all functions good
On On X X PCM fault LEDs, fan fault LEDs Any PCM fault, fan fault, over or under
temperature
On On X X SBB module LEDs Any SBB module fault
On On X X No module LEDs Enclosure logical fault
On Blink X X Module status LED on SBB
module
Unknown (invalid or mixed) SBB module
type installed, I
2
C bus failure (inter-SBB
communications). EBOD VPD configuration
error
On Blink X X PCM fault LEDs, fan fault LEDs Unknown (invalid or mixed) PCM type
installed or I
2
C bus failure (PCM
communications)
X Blink Enclosure identification or invalid ID
selected
X = Disregard