System maintenance switch
| Position | Default | Function |
|---|---|---|
| S1 | Off | Off = iLO 4 security is enabled. On = iLO 4 security is disabled. |
| S2 | Off | Off = System configuration can be changed. On = System configuration is locked. |
| S3 | Off | Reserved |
| S4 | Off | Reserved |
| S5 | Off | Off = Power-on password is enabled. On = Power-on password is disabled. |
| S6 | Off | Off = No function. On = ROM reads system configuration as invalid. |
| S7 | Off | Off = Set default boot mode to UEFI. On = Set default boot mode to legacy. |
| S8 | — | Reserved |
| S9 | — | Reserved |
| S10 | — | Reserved |
| S11 | — | Reserved |
| S12 | — | Reserved |
You can access the redundant ROM by setting S1, S5, and S6 to On.
When the system maintenance switch position 6 is set to the On position, the system is prepared to erase all system configuration settings from both CMOS and NVRAM.
CAUTION: Clearing CMOS, NVRAM, or both deletes configuration information. Be sure to configure the
node
properly to prevent data loss.
IMPORTANT: Before using the S7 switch to change to Legacy BIOS Boot Mode, be sure the HPE Dynamic Smart Array B140i Controller is disabled. Do not use the B140i controller when the
node
is in Legacy BIOS Boot Mode.