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Desktop Board Features
21
Security Passwords
The BIOS includes security features that restrict whether the BIOS Setup program can be accessed
and who can boot the computer. A supervisor password and a user password can be set for the
Setup and for booting the computer, with the following restrictions:
• The supervisor password gives unrestricted access to view and change all Setup options. If
only the supervisor password is set, pressing <Enter> at the password prompt of Setup gives
the user restricted access to Setup.
• If both the supervisor and user passwords are set, you must enter either the supervisor
password or the user password to access Setup. Setup options are then available for viewing
and changing depending on whether the supervisor or user password was entered.
• Setting a user password restricts who can boot the computer. The password prompt is
displayed before the computer is booted. If only the supervisor password is set, the computer
boots without asking for a password. If both passwords are set, you can enter either password
to boot the computer.
Speaker
A 47 Ω inductive speaker is mounted on the desktop boards. The speaker provides audible error
code (beep code) information during the Power-On Self-Test (POST).
LAN Subsystem (Optional)
The Intel 82562ET (in conjunction with the Intel 82801BA ICH2) provides a Fast Ethernet Wired
for Management (WfM) PCI LAN subsystem providing both 10Base-T and 100Base-TX
connectivity. Features include:
• 32-bit, 33-MHz direct bus mastering on the PCI bus
• Shared memory structure in the host memory that copies data directly to/from host memory
• 10Base-T and 100Base-TX capability using a single RJ-45 connector with connection and
activity status LEDs
• IEEE 802.3u Auto-Negotiation for the fastest available connection
• Jumperless configuration; the LAN subsystem is completely software configurable
Intel
®
82562ET Platform LAN Connect Device
The Intel 82562ET LAN component provides an interface to the back panel RJ-45 connector with
integrated LEDs. The physical interface may alternatively be provided through the CNR
connector.
The Intel 82562ET provides the following functions:
• Basic 10/100 Ethernet LAN connectivity
• Supports RJ-45 connector with status indicator LEDs
• Full driver compatibility
• Advanced Power Management (APM) support
• Programmable transit threshold
• Configurable EEPROM that contains the MAC address