HP Kayak XU04 Features Manual page 2

HP MaxiLife® Hardware Monitoring
HP MaxiLife is a hardware monitoring chip which is resident on the system
board. Its responsibility includes On/Off and reset control, status panel
management (Lock button, LEDs), hardware monitoring (temperature and
voltage), early diagnostics (CPU, DIMMs, PLLs, boot start), run-time
diagnostics (CPU errors, package intrusions), and other miscellaneous
functions (such as special OK/FAIL symbols based on a smiling face).
HP MaxiLife Architecture
The HP MaxiLife chip continuously monitors temperature and voltage
sensors located in critical regions on the system board. This chip receives
2
data about the various system components via a dedicated I C bus, which is
a reliable communications bus to control the integrated circuit boards.
LCD Status Panel
Serial EEPROM
Speed up/slow down
PLLs (clocks)
System Fans
2
I C bus
HP MaxiLife
Package
DIMM
Intrusion
Temperature Voltage
Intel 440GX
DIMM
Sensor
Pentium II
Sensors Sensors
AGPset DIMM
Xeon
DIMM
Processor
2