System-board switch
Use this information to locate and define system-board switch in the blade server.
The following illustration shows the location of the system-board switch.
The following table describes the function of each switch in the switch block.
| Switch number | Description | Switch setting | Definition |
|---|---|---|---|
| SW1 - 1 | Password override switch | Changing position of this switch resets the power on password. | This switch overrides the power on password. The system ships with this switch off, but it can be on or off in a functioning system. |
| SW1 - 2 | Host Trusted Platform Module (TPM) physical presence | The default position is off. | Turning this switch to the on position indicates a physical presence to the host TPM. |
| SW1 - 3 | Real Time Clock (RTC) reset | Normally open. Toggle to reset RTC. | Resets the RTC. A momentary toggle is all that is required. To avoid excessive battery drain, do not leave this switch closed. |
| SW1 - 4 | Boot using the backup IMM2 code | The default position is off, allowing the blade server to boot from the primary IMM2 firmware. | When the switch is in the default off position, the blade server will boot using the primary IMM2 firmware. When the switch is on, the blade server will boot using a backup of the IMM2 firmware. |
| SW1 - 5 | Boot block recovery | The default position is off, allowing the blade server to boot from the primary UEFI firmware. | When the switch is on, it allows the blade server to boot using the backup UEFI. |
| SW1 - 6 | IMM2 recovery mode | The default position is off. | When the switch in on, it allows the blade server to boot without permission from the AMM. |
| SW1 - 7 | IMM2 Trusted Platform Module (TPM) physical presence | The default position is off. | Turning this switch to the on position indicates a physical presence to the IMM2. |
| SW1 - 8 | Force H8 update | The default position is off. | N/A |
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