ASROCK SPC741D8QM3-NL User Manual page 38

Intelligent Platform
Management Bus Header
(4-pin IPMB1)
(see p.6, No. 46)
ATX 12V Power
Connectors
(8-pin ATX12V1)
(see p.6, No. 13)
(8-pin ATX12V2)
(see p.6, No. 16)
(8-pin ATX12V3)
(see p.6, No. 18)
Micro-Fit ATX 4Pin
Power Connector
(4-pin ATX4PIN1
(ATX 24pin-to-4pin)
(see p.6, No. 12)
30
IPMB_SDA
GND
8
4
1
5
4
PSON#
GND
) 2
This 4-pin connector is used
IPMB_SCL
to provide a cabled base-board
or front panel connection for
No connect
value added features and 3rd-
party add-in cards, such as
Emergency Management cards,
that provide management
features using the IPMB.
This motherboard provides
12V
three 8-pin ATX 12V power
5
connectors.
1
GND
GND
4
8
12V
The motherboard provides one
3
4-pin power/signal connector
ATX_+5VSB
which is a required input for
ATX_PWROK
1 ATX power source.
When using ATX power, it is
necessary to use a 24pin-to-
4pin power cable to connect
between the 24pin power
connector of PSU and the
ATX12V1, ATX12V2 or
ATX12V3 connector on the
motherboard for power supply
and signal communication.