Lenovo System x3500 M5 Type 5464, Инструкция по установке и обслуживанию

Страница: 44 / 1236

Table 5. System board SW2 switch block definition (continued)
Switch number Switch name Default position Description
2. Changing the position of this switch does not
affect the administrator password check if an
administrator password is set.
3 CMOS clear Off Clears CMOS memory when on.
4 System TPM
physical presence Off Indicates a physical presence to the system TPM
when on.
Notes:
1. Before you change any switch settings or move any jumpers, turn off the server. Review the information
in “Safety” on page v, “Installation guidelines” on page 29, “Handling static-sensitive devices” on
page 31, and “Turning off the server” on page 21.
2. Any system-board switch or jumper block that is not shown in the illustrations in this document are
reserved.
System-board LEDs and controls
The following illustration shows the light-emitting diodes (LEDs) on the system board.
Any error LED can be lit after ac power has been removed from the system-board tray so that you can
isolate a problem. After ac power has been removed from the system-board tray, power remains available
to these LEDs for up to 90 seconds. To view the error LEDs, press and hold the light path button on the
system board to light the error LEDs. The error LEDs that were lit while the system-board tray was running
will be lit again while the button is pressed.
The following illustration shows the LEDs and controls on the system board.
28
System x3500 M5 Installation and Service Guide