Table 4. System board jumpers (continued)
Jumper
number
Jumper name
Jumper setting
IMM_SPI_EN
IMM_SPI_HALF_ROM_EN_N
To allow override of the boot half (Default: jumper
open)
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 UEFI boot recovery 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.
3. 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.
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 v and “Installation
guidelines” on page 34, “Handling static-sensitive devices” on page 36, and “Turning off the server”
on page 24.
2. Any system-board switch or jumper blocks that are not shown in the illustrations in this document
are reserved.
System-board LEDs
This section contains information about the system-board LEDs.
Any error LED can be lit after ac power has been removed from the system-board tray so that you can isolate
a problem. After ac power has been removed from the system-board tray, power remains available to these
LEDs for up to 90 seconds. To view the error LEDs, press and hold the light path button on the system board
to light the error LEDs. The error LEDs that were lit while the system-board tray was running will be lit again
while the button is pressed. The following illustration shows the LEDs and controls on the system board.
The following illustration shows the light-emitting diodes (LEDs) on the system board.
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Summary of Contents for x3300 M4 7382
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