Lenovo 3821 Manual Do Utilizador
Table 6. System-board jumpers
Jumper
number
number
Jumper
name
name
Jumper setting
1
JP6
UEFI boot
recovery
recovery
v
Pins 1 and 2: Normal operation (default).
v
Pins 2 and 3: Enable the UEFI recovery mode.
2
JP1
CMOS
clear
clear
v
Pins 1 and 2: Normal operation (default).
v
Pins 2 and 3: Clears CMOS.
3
SW6
switch
block
block
Note: If no jumper is present, the server responds as if the pins are set to 1
and 2.
and 2.
Table 7. 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 off, this loads the primary IMM firmware ROM page. When on, this loads the secondary
(backup) IMM firmware ROM page. (Default off)
(backup) IMM firmware ROM page. (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).
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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ThinkServer TD200x Types 3719, 3821, 3822, and 3823: Hardware Maintenance Manual