Specifications

System BIOS and Resources
System BIOS
Chapter 4 45
System BIOS
The HP x4000 Workstation BIOS is based on a Phoenix BIOS and is
compliant with:
• ACPI 1.0
• PCI 2.2
• PnP 1.0a
• DMI 2.0
• WFM 2.0
• MPS 1.4
• PC 99 (fast boot)
The BIOS supports:
• up to six processor microcodes
• boot block recovery mode
• administrator and user passwords
• configuration summary screen
• setup program
• temporary boot priority
• fast boot
• POST routines
The system ROM contains the Power-On Self-Test (POST) routines and
the BIOS: the system BIOS, video BIOS, and low-option ROM. This
chapter gives an overview of the following:
• Menu-driven Setup with context-sensitive help.
• POST routines, which are a sequence of tests the computer performs
to ensure that the system is functioning correctly
BIOS Identification
The system BIOS is identified by the version number XX.YM.mm, where:
• XX is a two-letter code indicating the system
• Y is a one-letter code indicating the HP entity
• M is the major BIOS version
• mm is the minor BIOS version