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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.