Technical Data
40
EPC-2322 (P3000(D)BX2 Series)
Service Manual
System Management
Overview
The P3000(D)BX2 contains a series of System Management (SM) sensors and
controllers that monitor prominent functions of the SBC. The SM components are
interconnected through an SM Bus (
). When an SM component detects a
critical event, it sends a message to be stored in the System Event Log (SEL).
System Event
Log (SEL)
The SEL is intended to capture only critical events. Critical events are immediately
captured and logged in the SEL so that they will be available for quick system response
or for later analysis. The SEL can be viewed at the next Power-On Self Test (POST) via
the SM Control menu in the Setup Utility. See below.
System events are logged through the System Management Interrupt (SMI) Handler.
The SMI Handler is a routine loaded into a protected area of RAM during POST. This
allows the SMI Handler to function independently of the Operating System.
Up to twenty (20) events can be logged, and each event is timestamped. When the event
log is full, the oldest event will be overwritten.
Currently, the following events are logged:
•
System temperature reached the threshold or returned to normal
•
CPU1 temperature reached the threshold or returned to normal
•
CPU2 temperature reached the threshold or returned to normal
•
Single-bit or Multi-bit ECC memory error was detected at DIMM#
xx
Note:
For Single and Multi-bit ECC errors, the DIMM number will be noted by
xx
.
Setup Utility
The SM Control menu in the Setup Utility allows the event log to be viewed or cleared.
The SM Control menu also displays the status of the following functions:
•
System and CPU temperature
•
CPU operating voltage (VCORE)
•
Voltage supplied to the SBC (+3.3 V, +5 V, -5 V, +12 V, and -12 V)
The SM Control menu allows the user to set the threshold for the system and CPU
temperatures. If either the system or CPU temperature reaches the threshold, the LED
on the I/O bracket will be lit and an event will be logged in the SEL. If the CPU
temperature reaches the threshold, the CPU’s will attempt to cool down by slowing the
CPU clock according to the rate set for the Thermal Duty Cycle.
Any changes to settings will take effect at the next POST. The POST display will
announce the logging of a new event or the clearing of the log.
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Summary of Contents for P3000BX2 Series
Page 14: ...Introduction 6 EPC 2322 SBC P3000 D BX2 Series Service Manual Notes S t o c k C h e c k c o m...
Page 62: ...Technical Data 54 EPC 2322 P3000 D BX2 Series Service Manual Notes S t o c k C h e c k c o m...
Page 64: ...Technical Data 56 EPC 2322 P3000 D BX2 Series Service Manual Notes S t o c k C h e c k c o m...
