System-board switches
Use this information to locate and understand the system-board switches in the blade server.
The following illustration shows the location of the switch block and the IMM backup jumper on the system board.
The following table describes the function of the switches in the switch block (SW2).
| Switch number | Description | Switch setting | Definition |
|---|---|---|---|
| SW2 - 1 | Reserved | ||
| SW2 - 2 | Force power on | The default position is off. | Turning this switch to the on position forces the blade server to power on |
| SW2 - 3 | Trusted Platform Module (TPM) physical presence | The default position is off. | Turning this switch to the on position indicates a physical presence to the TPM. |
| SW2 - 4 | Password override switch | The default position is off. | Turn this switch to the on position overrides the power on password. |
| SW2 - 5 | Real time clock (RTC) reset | The default position is off. | Turning this switch to the on position resets the RTC. A momentary toggle is all that is required. To avoid excessive battery drain, do not leave this switch on. |
| SW2 - 6 | Reserved | ||
| SW2 - 7 | Flash bank select | The default position is off. | Turning this switch to the on position forces the blade to boot from the backup UEFI image. |
| SW2 - 8 | Wake on LAN (WOL) disable | The default position is off. | Turning this switch to the on position disables WOL. |
| SW2 - 9 | Force H8 update | The default position is off. | N/A |
| SW2-10 | Reserved |
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