Table 2. Jumpers definition (continued)
Jumper number
Jumper name
Jumper setting
JP11
TPM initialization jumper
• Pins 1 and 2: Normal (default).
• Pins 2 and 3: Initiate TPM.
JP12
IMM SPI half ROM enable
• Pins 1 and 2: Disabled.
• Pins 2 and 3: Enable IMM SPI half
ROM (default).
JP19
Low security_N jumper
• Pins 1 and 2: Normal (default).
• 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.
System-board LEDs
The following illustration shows the light-emitting diodes (LEDs) on the system board.
(cy1cd039)
DIMM 1
DIMM 2
DIMM 3
DIMM 4
Microprocessor
IMM2 hearbeat
LED
RTMM
Hearbeat LED
DIMM 1 - 4
error LEDs
Microprocessor
error LED
Standby power
LED
System board
error LED
Figure 6. The LEDs on the system board
Note:
When you disconnect the power source from the server, you lose the ability to view the LEDs because
the LEDs are not lit when the power source is removed. Before you disconnect the power source, make
a note of which LEDs are lit, including the LEDs that are lit on the operation information panel and LEDs
inside the server on the system board
24
Lenovo System x3250 M4 Installation and Service Guide
Summary of Contents for System x3250 M4
Page 1: ...Lenovo System x3250 M4 Installation and Service Guide Machine Type 2583 ...
Page 6: ...iv Lenovo System x3250 M4 Installation and Service Guide ...
Page 74: ...60 Lenovo System x3250 M4 Installation and Service Guide ...
Page 98: ...84 Lenovo System x3250 M4 Installation and Service Guide ...
Page 136: ...122 Lenovo System x3250 M4 Installation and Service Guide ...
Page 144: ...130 Lenovo System x3250 M4 Installation and Service Guide ...
Page 418: ...404 Lenovo System x3250 M4 Installation and Service Guide ...
Page 596: ...582 Lenovo System x3250 M4 Installation and Service Guide ...
Page 604: ...Taiwan BSMI RoHS declaration 590 Lenovo System x3250 M4 Installation and Service Guide ...
Page 612: ...598 Lenovo System x3250 M4 Installation and Service Guide ...
Page 613: ......
Page 614: ......