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Intelligent Platform
Management Bus Header
(4-pin IPMB1)
(see p.7, No. 26)
Baseboard Management
Controller SMBus Header
(5-pin BMC_SMB1)
(see p.7, No. 27)
PSU SMBus Header
(PSU_SMB1)
(see p.7, No. 5)
Clear CMOS Pads
(CLRCMOS1)
(see p.7, No. 25)
30
IPMB_SDA
IPMB_SCL
No connect
GND
BMC_SMB_PRESENT_1_N
Power
BMC_SMBCLK
GND
BMC_SMBDATA
ALERT
SMBCLK
+3V
1
SMBDATA
GND
This 4-pin connector is used
to provide a cabled base-board
or front panel connection for
value added features and 3rd-
party add-in cards, such as
Emergency Management cards,
t h a t p r o v i d e m a n a g e m e n t
features using the IPMB.
The header is used for the SM
BUS devices.
PSU SMBus monitors the
status of the power supply, fan
and system temperature.
This allows you to clear the
data in CMOS. To clear CMOS,
take out the CMOS battery and
short the Clear CMOS Pad.
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