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4 fan status display – HP DS20L User Manual

Page 86

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5-6 AlphaServer DS20L User’s Guide

Table 5– 4 J2 Configuration Jumper Pin Functions

Install Jumper on Pins

Function

5-6 3-4 1-2

Normal operations; execute firmware and boot
to operating system using current or default
environment settings.

0

0

0

Restore factory default environmental settings.

0

0

1

Upgrade or recover firmware (COM1).

0

1

0

Failsafe reflash from CD-ROM (COM1).

0

1

1

Field installation and test mode.

1

*

*


Note: 0 = no jumper installed, 1 = jumper installed
* indicates reserved pins

5.4 Fan Status Display

The SRM show power command can help you to identify a failing fan.
Example 5–1 identifies the location of the information for each individual fan in
a sample show power command display; Figure 5-3 shows the corresponding fan
locations in the DS20L system. See Section A.4.7 in Appendix A for a detailed
description of the show power command.