Reference Guide
49
Using the Baseboard Management Controller
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m
Power Throttling Configuration in BIOS Setup Utility
Before enabling
the
power throttling feature,
you must set the Power
Management option
to
Active Power Controller or Node
Management. Access
this
option through
the
BIOS
setup
utility’s
Server
menu.
Then from the Server menu you can
enable
or
disable power throttling
and
power
CAP, and set the
chassis
CAP value.
Only MB4 can
display
the
power throttling behavior setting
in the
BIOS setup
menu.
Additional Power Throttling Information
• The
power throttling feature
takes
advantage
of the node
management function
to
control
CPU
frequency.
• If the
chassis
CAP
function
is
disabled
and
power throttling
is
enabled,
the
BMC
will
set a
power supply
unit
(PSU)
limit of one as the
chassis
CAP value.
•
After
the
power throttling
and
chassis CAP settings
are
changed,
the
main logic board
(MLB)
must be
restarted.
• The
power
cap
feature cannot
be
enabled concurrently
with the Intel
®
Data Center
Manager
(DCM).
Power Throttling Protection
The
power throttling feature
is a full
power redundancy feature.
This
feature adjusts
CPU
frequency
via a
PROCHOT#
signal to
reduce
the
MLB's power
consumption.
Information From the Fan Control Board
BMC
can get the
following information
from the fan
control
board:
• FW version
•
Board
ID
•
Ambient1
Reading
•
Ambient2
Reading
• Fan
Tach1
Reading
• Fan
Tach2
Reading
• Fan
Tach3
Reading
• Fan
Tach4
Reading
• PSU
Current
Reading