System Board Switches And Jumpers - IBM 7378 Problem Determination And Service Manual

System board switches and jumpers

The following tables show the settings of the switches and the jumpers.
See Table 4 and Table 5 for information about the switch and jumper settings.
Table 5. 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)
Table 4. System board jumpers
Jumper Jumper
number name
JP1 CMOS clear v Pins 1 and 2: Normal operation (default).
JP6 UEFI boot
recovery
JP7 Trust
Platform
Module
(TPM)
Note: If no jumper is present, the server responds as on default position.
Jumper setting
v Pins 2 and 3: Clears CMOS memory.
v Pins 1 and 2: Normal operation (default).
v Pins 2 and 3: Enable the UEFI recovery mode.
v Pins 1 and 2: TPM physical presence is asserted.
v Pins 2 and 3: TPM physical presence is not asserted (default).
Note: The physical presence requires manual setting on the
server to change the TPM configuration. The TPM is enabled
and physical presence is not asserted by default. The physical
presence needs to be asserted to activate, deactivate, clear or
change ownership of the TPM.
17
Chapter 2. Introduction