58
Chapter 2
System Board
Devices on the SMBus
As a monitoring chip, MaxiLife reports critical errors at start-up, and is therefore powered
by Vstandby (3.3V) power. For MaxiLife to work correctly, the Personal Workstation must
always be connected to a grounded outlet. This enables the Personal Workstation’s
hardware monitoring chip to be active, even if the system has been powered off.
Test Sequence and Error Messages
Refer to the section “MaxiLife Test Sequence and Error Messages” in the chapter “Tests
and Error Messages” for detailed information about the different test sequences and error
messages.
MaxiLife Architecture
The MaxiLife chip continuously monitors temperature and voltage sensors located in
critical regions on the system board. This chip receives data about the various system
components via a dedicated I2C bus, which is a reliable communications bus to control the
integrated circuit boards.
Figure 2-7. MaxiLife Chip Architecture
LCD Status Panel
Serial
PLLs
Speed up/slow down
System Fans
I
2
C bus
HP MaxiLife
Pentium II
Processor
Intel 440GX
AGPset
DIMM
DIMM
DIMM
DIMM
Package
Intrusion
Sensor
Temperature
Sensors
Voltage
Sensors
Содержание X Class 500/550MHz
Страница 6: ...6 Contents ...
Страница 8: ...8 Figures ...
Страница 15: ...15 1 System Overview ...
Страница 66: ...66 Chapter2 System Board Devices on the ISA Bus ...
Страница 96: ...96 Chapter3 Interface Boards and Mass Storage Drivers Connectors and Sockets ...
Страница 134: ...134 Chapter5 Tests and Error Messages Beep Codes ...
Страница 135: ...135 A Regulatory Information and Warranty ...
Страница 146: ...146 AppendixA Regulatory Information and Warranty HP Hardware Warranty ...