System Board Leds - Lenovo ThinkServer TD200x Hardware Maintenance Manual

Table 9. System-board jumpers
Jumper Jumper
number name
JP1 CMOS clear
JP6 UEFI boot
recovery
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 Safety information.)
2. Any system-board switch or jumper blocks that are not shown in the illustrations in this document
are reserved.

System board LEDs

The following illustration shows the LEDs on the system board.
Jumper setting
• Pins 1 and 2: Normal operation (default).
• Pins 2 and 3: Clears CMOS memory.
• Pins 1 and 2: Normal operation (default).
• Pins 2 and 3: Enable the UEFI recovery mode.
.
Chapter 6 Locating Server Controls and connectors
139