Lenovo System x3100 M4 Installation And Service Manual page 42

Figure 10. Location and description of switches and jumpers
Table 3. System board jumpers
Jumper number
JP1
JP2
JP10
JP11
JP12
System x3100 M4 Installation and Service Guide
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Jumper name
Clear CMOS jumper
BIOS boot backup (boot block
jumper)
TPM physical presence jumper
TPM initialization jumper
IMM recovery jumper
Jumper setting
• Pins 1 and 2: Keep CMOS data
(default).
• Pins 2 and 3: Clear CMOS data.
• Pins 1 and 2: Boot from primary
BIOS page (default).
• Pins 2 and 3: Boot from backup
BIOS page.
• Pins 1 and 2: Normal (default).
• Pins 2 and 3: Pull down TPM.
• Pins 1 and 2: Normal (default).
• Pins 2 and 3: Initiate TPM.
• Pins 1 and 2: Loads the secondary
(backup) IMM firmware ROM
page.
• Pins 2 and 3: Normal (default)
Loads the primary IMM firmware
ROM page.