IBM 847691U Hardware Maintenance Manual - Page 50

Erasing lost or forgotten passwords Note To set, change, or delete a password, see "System security" on page 27. The server uses complementary metal-oxide semiconductor (CMOS) memory on the system board for storing configuration and setup information. CMOS memory maintains information about: Date and time Security features Power-management devices Storage devices Keyboard and mouse ISA legacy configuration information Plug and Play configuration information Port assignments I/O addresses and interrupts Other selectable features Within the security features are the settings for the power-on and administrator passwords. If you need to erase a lost or forgotten administrator password, you must erase all configuration and setup information by moving the jumper designated for CMOS memory. This jumper is known as the Clear CMOS Request jumper. Attention Administrator Password Users: 1. If enhanced security is enabled, and you forget or lose the administrator password, you must replace the system board in the server to regain access to the Configuration/Setup Utility program. For more information, see "Using the enhanced security features" on page 32. 2. Clearing CMOS memory erases the configuration of the server. Therefore, you must reconfigure the server after clearing CMOS memory. If possible, record the server configuration information before moving the Clear CMOS Request jumper. The jumper is located on the system board with the label Clear CMOS Request. To locate this jumper, see "System board illustration" on page 142, or refer to the label inside the server. 42 Netfinity Server HMM