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ATX Power Connector
(24-pin ATXPWR1)
(see p.35, No. 3)
ATX 12V Power
Connector
(8-pin ATX12V1)
(8-pin ATX12V2)
(see p.35, No. 4, 5)
HDD Power Connector
(12-pin PWR_HDD1)
(see p.35, No. 2)
PMBus Connector
(5-pin PSU_SMB1)
(see p.35, No. 1)
1
13
3V
3V
3V
N/A
GND
GND
PSON#
5V
12V
GND
5V
GND
12V
GND
PWROK_PS
N/A
5VSB
5V
12V
GND
12V
GND
3V
GND
12
24
5
1
8
4
6
12
7
1
+3VSB
GND
ALERT
SMBDATA
SMBCLK
1
1U2FH-4L
The PDB provides a 24-pin ATX
power connector. To use a 20-pin
ATX power supply, please plug it
along Pin 1 and Pin 13.
The PDB provides two 8-pin
ATX 12V power connectors..
This connector is used
to connect BPB and the
power connector on the
power distribution board.
PSU SMBus monitors the
status of the power supply.
37
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