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S1564-001-01 www.tyan.com
Appendix: LM78 System Hardware Monitor and LANDesk Client
Manager (LDCM)
NOTICE:
If you purchased a S1564 without a LM78 monitoring chip
installed (it is a manufacturing option) , you can skip this section.
To enhance the performance of your computer system, Tyan has incor-
porated National Semiconductor's LM78 Microprocessor System Hard-
ware Monitor and LANDesk Client Manager (LDCM) into the S1564
board design. The LM78 is an Integrated Data Acquisition system,
designed to monitor power supply voltages, temperatures, and fan speeds.
To achieve this purpose, the LM78, a hardware monitor component, has
an on-chip temperature sensor, 5 positive analog inputs, two inverting
inputs and an 8-bit ADC. In addition, the LM78 also provides ISA and
Serial Bus Interfaces. A 32-byte auto-increment RAM is provided for
POST (Power On Self Test) code storage.
Features
The LM78 includes the following features:
• Temperature sensoring
• 5 positive voltage inputs
• 2 op amps for negative voltage monitoring
• 3 fan speed monitoring inputs
• Input for additional temperature sensors
• Chassis Intrusion Detector Input
The software program-- LDCM (LANDesk Client Manager) is used as
the LM78's drivers to accomplish monitoring computers' temperatures
and voltages. The LDCM Drivers use the LM78 to monitor critical
hardware components and enable remote sensing and diagnostics of the
system Board. Thus, by implementing both National Semiconductor's
LM78 and LDCM in the S1564 system, Tyan provides you with the best
quality board possible on the market.
For more information, please refer to Tyan's Web Page:
Http://www.tyan.com
