System-board switches and jumpers
The following illustration shows the switches and jumpers on the system board.
See Table 9 and Table 10 for information about the switch and jumper settings.
Table 9. System-board jumpers
Jumper
number
Jumper
name
Jumper setting
JP1
CMOS clear
v
Pins 1 and 2: Normal operation (default).
v
Pins 2 and 3: Clears CMOS memory.
JP6
UEFI boot
recovery
v
Pins 1 and 2: Normal operation (default).
v
Pins 2 and 3: Enable the UEFI recovery mode.
Note:
If no jumper is present, the server responds as if the jumper is on pins 1 and 2.
Table 10. System-board switch 6
SW 6 Switches
Switch description
1
Reserved (default off)
2
Power-on password override when on. (default off)
3
Reserved (default off)
4
When this switch is off, the primary IMM firmware ROM page is loaded. When this switch is on,
the secondary (backup) IMM firmware ROM page is loaded. (default off)
Notes:
1. Before you change any switch settings or move any jumpers, turn off the server;
then, disconnect all power cords and external cables. (Review the information in
Chapter 2, “Safety information,” on page 5.)
2. Any system-board switch or jumper blocks that are not shown in the illustrations
in this document are reserved.
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