IBM System x3550 M5 Type 5463 User Manual

The following table describes the jumpers on the system board.
Table 1. System board jumpers
Jumper number Jumper name Jumper setting
JP11 CMOS clear jumper
v Pins 1 and 2: Normal (default).
v Pins 2 and 3: Clears the real-time
clock (RTC) registry.
JP13 UEFI boot backup jumper
v Pins 1 and 2: Normal (default).
Loads the primary server firmware
ROM page.
v Pins 2 and 3: Loads the secondary
(backup) server firmware ROM
page.
JP7 System TPM physical
presence jumper
v Pins 1 and 2: Normal (default).
v Pins 2 and 3: Indicates a physical
presence to the system TPM.
Notes:
1. If no jumper is present, the server responds as if the pins are set to the default.
2. Changing the position of the UEFI boot backup jumper (JP13) from pins 1 and 2 to pins
2 and 3 before the server is turned on alters which flash ROM page is loaded. Do not
change the jumper pin position after the server is turned on. This can cause an
unpredictable problem.
The following table describes the functions of the SW3 switch block on the system
board.
UEFI boot backup
jumper (J13)
System TPM physical
presence switch (SW11)
CMOS clear jumper (J11)
NMI button
1
2
SW3 switch
block
On
Off
483
7
2
6
1
5
1
2
3
1
2
3
On
Off
Figure 24. System-board switches, jumpers, and buttons
Chapter 1. The IBM System x3550 M5 server 29

IBM System x3550 M5 Type 5463 Specifications

General

Brand	IBM
Model	System x3550 M5 Type 5463
Category	Server
Language	English