System-Board Switches And Jumpers - IBM System x3400 M3 Types 7378 Installation And User Manual

System-board switches and jumpers

The following tables show the settings of the switches and the jumpers.
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).
Notes:
1. Before you change any switch settings or move any jumpers, turn off the server;
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IBM System x3400 M3 Types 7378 and 7379: Installation and User's Guide
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.
then, disconnect all power cords and external cables. (Review the information in
"Safety" on page vii, "Installation guidelines" on page 29, and "Handling
static-sensitive devices" on page 31.)
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: Physical presence to the TPM.
v Pins 2 and 3: No physical presence to the TPM (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.