
Table 2. Jumpers definition
Jumper name
Description
Clear CMOS jumper
• Pins 1 and 2: Keep CMOS data (default)
• Pins 2 and 3: Clear CMOS data
UEFI boot backup
jumper
• Pins 1 and 2: Normal (default). Loads the primary server firmware ROM page.
• Pins 2 and 3: Boot from backup. Loads the secondary (backup) server firmware ROM
page.
Notes:
1. If no jumper is present, the server responds as if the pins are set to the default.
2. Changing the position of the UEFI boot backup jumper from pins 1 and 2 to pins 2 and 3 before the server is
turned on alters which flash ROM page is loaded. Do not change the jumper pin position after the server is turned
on. This can cause an unpredictable problem.
System-board LEDs
The following illustration shows the light-emitting diodes (LEDs) on the system board.
.
Components, features, and controls
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