IBM System x3650 Type 7979 User Manual

Power-control
button
Power-on
LED
Hard disk drive
activity LED
System
locator
LED
Information
LED
System-error
LED
Release
latch
2. To view the light path diagnostics panel, slide the latch to the left on the front of
the operator information panel and pull the panel forward. This reveals the light
path diagnostics panel. Lit LEDs on this panel indicate the type of error that has
occurred.
The following illustration shows the light path diagnostics panel.
DASD
NMI
PCI
PS1
SP
PS2
CNFG
MEM
CPU
FAN
VRM
OVER SPEC
TEMP
REMIND
S ERR
Light Path
Diagnostics
RAID
BRD
Note any LEDs that are lit, and then push the light path 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 light path
diagnostics panel. This information and the information in “Light path diagnostics
LEDs” on page 52 can often provide enough information to diagnose the error.
3. Remove the server cover and look inside the server for lit LEDs. A lit LED on or
beside a component identifies the component that is causing the error.
The following illustration shows the LEDs on the system board.
50 IBM System x3650 Type 7979 and 1914: Problem Determination and Service Guide

IBM System x3650 Type 7979 Specifications

General

Brand	IBM
Model	System x3650 Type 7979
Category	Server
Language	English