HP ML570 ProLiant ML570 Generation 2 Server Maintenance and Service Guide - Page 120
Non-Maskable Interrupt Switch, System Configuration Settings
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Connectors, LEDs, and Switches Non-Maskable Interrupt Switch Crash dump analysis is an essential part of eliminating reliability problems such as hangs or crashes in operating systems, device drivers, and applications. Many crashes freeze a system requiring you to do a hard reset. Resetting the system erases any information that supports root cause analysis. When an operating system crashes, system administrators can perform a non-maskable interrupt (NMI) event by pressing a dump switch. The NMI event enables a hung system to once again become responsive. The NMI switch is used ONLY in the event of a service emergency that requires a complete data dump in preparation for recovering the system from a catastrophic event. System Configuration Settings It may be necessary at some time to clear and reset system configuration settings. 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. For additional information about locating the switch and switch settings, refer to "System Maintenance Switch" in this chapter. The default setting for all positions is off. IMPORTANT: Clearing CMOS and/or NVRAM deletes your configuration information. Refer to the HP ProLiant ML570 Generation 2 Server Setup and Installation Guide for complete instructions on configuring the server. IMPORTANT: The server serial number must be re-entered through RBSU after clearing the NVRAM. Refer to "Re-entering the Server Serial Number" in Chapter 2. To erase all system configuration settings: 1. Power down the server. 2. Remove the access panel. 3. Set the position 6 lever to the On position. 4. Power up the server, and wait for the system to display a message confirming that the maintenance switch has been set. 5. Power down the server. 6. Reset the position 6 lever to the default Off position. 7. Power up the server. 8. Press the F9 key to run RBSU and reset all system configuration settings. For instructions on using RBSU to reset system configuration settings, refer to the HP ProLiant ML570 Generation 2 Server Setup and Installation Guide. 4-24 HP ProLiant ML570 Generation 2 Server Maintenance and Service Guide HP CONFIDENTIAL Codename: Regret Part Number: 223958-005 Last Saved On: 12/29/03 9:45 AM