Intel® Server System R2000WF Product Family Technical Product Specification
62
8
Available only when PSU has PMBus
9
Calculated estimate
Figure 32 shows a high-level representation of the fan speed control structure that determines fan speed.
Figure 32. High-level fan speed control model
4.3
System Fans
Six (6) 60 x 38 mm system fans and embedded fans for each installed power supply module provide the
primary airflow for the system.
The system is designed for fan redundancy when configured with two power supply modules, all system fan
rotors are operational, and ambient air remains at or below ASHRAE class 2 limits. Should a single system fan
fail, platform management will adjust air flow of the remaining system fans and manage other platform
features to maintain system thermals. Fan redundancy is lost if more than one system fan is in a failed state.
The server board is capable of supporting up to a total of six system fans. On the server board, each system
fan includes a pair of fan connectors, a 1x10 pin connector to support a dual rotor cabled fan typically used
in 1U system configurations, and a 2x3 pin connector to support a single rotor hot swap fan assembly
typically used in 2U system configurations. Concurrent use of both fan connector types for any given system
fan pair is not supported.
Figure 33. Server board 2U system fan connector locations
Fan
speed
Events:
Intrusion
Fan failure
Power supply
failure
Memory
throttle
settings
Sensors:
Front panel
Processor
margin
Other sensors
(chipset, temp,
etc.)
Policy:
CLTT
Acoustic/
performance
Auto-profile
configuration
System Behaviors
