14
Description
Hardware Management Subsystem
The Hardware Management features enable the board to be compatible with the Wired for
Management (WfM) specification. The board has several hardware management features,
including the following:
• Fan monitoring
• Thermal and voltage monitoring
• Chassis intrusion detection
Hardware Management ASIC
The Hardware Management ASIC provides low-cost instrumentation capabilities. The features
of the component include:
• Internal ambient temperature sensing
• Remote thermal diode sensing for direct monitoring of processor temperature
• Power supply monitoring (+5 V, +3.3 V, +1.5 V, 3.3 VSB, and Vccp) to detect levels above
or below acceptable values
• SMBus interface
Fan Monitoring
The Hardware Management ASIC provides four fan tachometer inputs. Monitoring can be
implemented using Intel
®
LANDesk Client Manager or third-party software.
Real-Time Clock, CMOS SRAM, and Battery
The real-time clock provides a time-of-day clock and a multi-century calendar with alarm
features. The real-time clock supports 256 bytes of battery-backed CMOS SRAM in two
banks that are reserved for BIOS use.
A coin-cell battery (CR2032) powers the real-time clock and CMOS memory. When the
computer is not plugged into a wall socket, the battery has an estimated life of three years.
When the computer is plugged in, the standby current from the power supply extends the life
of the battery. The clock is accurate to ± 13 minutes/year at 25º C with 3.3 VSB applied.
The time, date, and CMOS values can be specified in the BIOS Setup program. The CMOS
values can be returned to their defaults by using the BIOS Setup program.
NOTE
If the battery and AC power fail, custom defaults, if previously saved, will be loaded into
CMOS RAM at power-on.
Summary of Contents for FUSION 6000 I
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