Lenovo ThinkServer RD120 Hardware Maintenance Manual page 180

2. To view the Easy LED Diagnostics panel, slide the latch to the left on the front
3. Remove the server cover and look inside the server for lit LEDs. A lit LED on or
162
ThinkServer RD120 server Machine Types 6444, 6445, 6446, and 6447: Hardware Maintenance Manual
1
Power-on LED
2
Hard disk drive activity LED
3
Information LED
4
Release latch
of the operator information panel and pull the panel forward. This reveals the
Easy LED Diagnostics panel. Lit LEDs on this panel indicate the type of error
that has occurred.
The following illustration shows the Easy LED Diagnostics panel.
OVER SPEC
REMIND
Note any LEDs that are lit, and then push the Easy LED Diagnostics panel back
into the server.
Look at the system service label on the top of the server, which gives an
overview of internal components that correspond to the LEDs on the Easy LED
Diagnostics panel. This information and the information in "Easy LED
Diagnostics" on page 164 can often provide enough information to diagnose the
error.
beside a component identifies the component that is causing the error.
The following illustration shows the LEDs on the system board.
5
6
7
Light Path
Diagnostics
PS1 PS2
CPU VRM CNFG
MEM NMI S ERR
SP DASD RAID
FAN TEMP BRD
PCI
System-error LED
System-locator LED
Power-control button