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SKY-8260S Manual V02 20220411
Copyright 2022 Advantech Co. Ltd. All rights reserved.
Page 47
- Improved thermal management to cover special scenarios as well as fan degradation
/ failure
- Chassis intrusion and FRU presence detection
- Redundant BMC and BIOS flashes for maximum reliability
- Fail safe BMC and BIOS upgrades using industry standard HPM.1 mechanisms and
tools including automatic rollback on an upgrade failure
- Remote updates of firmware as long as primary power is connected to the unit
- BIOS Watchdog for reliable POST process and improved POST code sensor
- Time synchronization between the BMC and x86 host at startup for consistent event
logs
- System FRU Information synchronization to the host via standard DMI tables
- Large system event log for efficient troubleshooting
- Capability to log system events from the x86 host
- Enhanced security (more information available under NDA)
For a detailed description of Advanced Platform Management features, the BMC
commands and sensor lists please refer to the SKY-8260S BMC User
’s Guide.
2.4.13.1 Hardware and Environmental Monitoring
BMC monitors all critical voltages on the SKY-8260S:
- Main system voltages (12V, 5V, 3.3V)
-
Standby voltages (5V_SB, 3.3V_SB)
-
RTC battery
-
CPU core and IO voltages
-
DRAM voltages
Moreover, the following temperatures are supervised:
- Air inlet and outlet temperatures
-
CPU temperatures
- PSU temperature (via PMBus)
2.4.13.2 Thermal Management
The system thermals are managed by the BMC using a Smart Fan algorithm. Smart
Fan is a fan control algorithm that provides proper cooling to the system while
minimizing noise and maximizing fan MTBF. The Smart Fan parameters have been
optimized for the SKY-8260S and are automatically loaded at system start time.
The Smart Fan algorithm uses the CPU temperatures as basis as the CPUs are the
hottest elements in the system under normal circumstances. Advanced platform
management introduces a special safe guard mechanism to assure normal operation
under special conditions: Should any other thermal sensor than the CPUs cross an
upper threshold, the BMC will override the Smart Fan control and turn all fans to full on
as long as such special condition applies. Advanced Platform Management takes
similar actions when it detects a fan failure or severe degradation.