IBM System x3250 M4, Инструкция по установке и эксплуатации

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Table 2. System board jumpers (continued)
Jumper number Jumper name Jumper setting
JP11 TPM initialization jumper
v
Pins 1 and 2: Normal
(default).
v
Pins 2 and 3: Initiate TPM.
JP12 IMM SPI half ROM enable
v Pins 1 and 2: Disabled.
v Pins 2 and 3: Enable IMM
SPI half ROM (default).
JP19 Low security_N jumper
v Pins 1 and 2: Normal
(default).
v
Pins 2 and 3: Activate low
security.
Notes:
1. If no jumper is present, the server responds as if the pins are set to 1 and 2.
2. Changing the position of the boot block jumper 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.
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
“Safety” on page vii, “Installation guidelines” on page 25, “Handling
static-sensitive devices” on page 27, and “Turning off the server” on page 14.
2. Any system-board switches or jumpers that are not labelled in the illustrations in
this document are reserved.
Chapter 2. Installing optional devices
23