IBM 8651RM0 Hardware Maintenance Manual - Page 158

System-Board Configuration Switch Settings: Some configuration actions are controlled through switches on the system board. Table 9 summarizes the switch settings that correspond to these actions. Table 9. Configuration Switch Settings Switch Position Function S6A1-1 On Resets NVRAM and the Real-Time Clock (RTC) to the factory defaults on system startup. Off1 Retains current CMOS settings on system startup. S6A1-2 S6A1-3 On Clears the user and administrative passwords on Off1 system startup. Passwords can be entered or changed. Off1 Reserved Notes: 1. This is the factory default. 2. Do not change the settings for switches S6A1-4, S6A1-5, S6A1-6, or S6A1-8. These switch settings should remain as set at the factory. NVRAM and RTC Settings (Switch S6A1-1): Setting the CMOS switch to On clears the current values of NVRAM and the RTC when the server is reset. This returns NVRAM and the RTC to the factory default. When the CMOS switch is set to Off, the default, the current settings are preserved during system reset. To reset the server's NVRAM and RTC settings to the factory default values: 1. Power-off the server and peripheral devices and remove the top cover (see "Cover (Top)" on page 72). 2. If the primary processor board blocks access to the switch, remove it (see "Processor or Memory Board" on page 121). 3. Locate the configuration switches on the system board. 150 Netfinity Server HMM