Before You Begin - IBM Netfinity 4500R Type 8656 Hardware Maintenance Manual

Table 9. Diagnostics panel LEDs.
CR LED
29 PS1
30 PS2
31 PS3
32 NON
33 OVER
34 NMI
22 TEMP
23 FAN
24 MEM
25 CPU
26 PCI 1
27 PCI 2
58 VRM
53 DASD1
57 DASD2

Before you begin

5
Diagnostics panel (See Table 6)
6
Advanced System Management Processor error (CR70)
7
Power-on (CR56)
8
DIMM1 failure (CR21)
9
DIMM2 failure (CR28)
10
DIMM3 ailure (CR18)
11
DIMM4 failure (CR20)
Power supply 1 failure.
Power supply 2 failure.
Not used.
Non-redundant power.
Overspecification. The system has exceeded the power capibilities of the installed
power supply units.
Non-maskable-interrupt occurred.
System temperature exceeded maximum rating.
A fan failed or is operating slowly.
Memory failure. One or more dual in-line memory modules (DIMMS) failed.
Microprocessor failure. One or both microprocessors failed.
Error on primary PCI channel (A) or system board.
Error on secondary PCI channel (B) or system board.
Error on voltage regulator module or on integrated voltage regulator.
SCSI bus A failure. The SCSI backplane (if any) or a device connected to SCSI bus
A failed.
SCSI bus B failure. The SCSI hot-swap disk drive backplane on SCSI bus B failed.
Before you begin to install options in your server, read the following information:
• Become familiar with the safety and handling guidelines specified under
"Working inside a server with power on" on page 46, "Handling static-sensitive
devices" on page 46, and read "Safety information" on page 141. These guidelines
will help you work safely while working with your server or options.
• You do not need to turn off the server to install or replace hot-swap power
supplies, hot-swap drives, hot-swap fans, or hot-plug PCI adapters.
• The orange color on components and labels in your server indentifies hot-swap or
hot-plug components. This means that you can install or remove the component
while the system is running, provided that your system is configured to support
this function. For complete details about installing or removing a hot-swap or hot-
plug component, see the information provided in this chapter.
• The blue color on components and labels indentifies touch points where a
component can be gripped, a latch moved, and so on.
Description
45
Installing options