IBM 783722U, Installation And User Manual

Page: 45 / 154

Table 3. System board switches (continued)
Switch pin number Default value Description
4 Off
v When this switch is on Off ,
this is normal mode. This
loads the primary IMM
firmware ROM page.
v
When this switch is
toggled to
On , this loads
the secondary (backup)
IMM firmware ROM page.
See the Problem
Determination and Service
Guide
for information about
recovering from a firmware
update failure.
The following illustration shows the SW5 switch and the jumpers on the system
board. See the tables below the illustration for information about the switch settings.
Table 4. System-board switch 5
SW 6 Switches Switch description
1 Reserved (default off)
2 Reserved (default off)
3 Reserved (default off)
4 When this switch is off, TPM physical present is de-asserted (default off). When this switch is on,
TPM physical present is asserted.
Important:
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
“Installation guidelines” on page 32, “Handling static-sensitive devices” on page
34, and “Turning off the server” on page 22.
2. Any system-board switch blocks or jumpers that are not shown in the
illustrations in this document are reserved.
The following illustration shows the SW 5 switch and the jumpers on the system
board. See the tables below the illustration for information about the switch settings.
Sw5
switch
block
4 3 2 1
OFF
Chapter 2. Installing optional devices
27