Asus KFSN4-DRE/SAS - Manual (Page 48)

2-28 Chapter 2: Hardware information
8. ATX power connectors (24-pin ATXPWR1, 8-pin ATX12V1)
These connectors are for an ATX power supply plugs. The power supply
plugs are designed to fit these connectors in only one orientation. Find the
proper orientation and push down firmly until the connectors completely fit.
• DO NOT forget to connect the 8-pin ATX +12 V power plug; otherwise, the
system will not boot.
• Use of a PSU with a higher power output is recommended when
configuring a system with more power-consuming devices. The system
may become unstable or may not boot up if the power is inadequate.
• Make sure that your power supply unit (PSU) can provide at least the
minimum power required by your system. See the table below for details.
®
KFSN4-DRE Series ATX power connectors
8-pin
GN
D
12V2
GN
D
12V2
GN
D
12V1
GN
D
12V1
24-pin Power Connector
ATXPWR1
ATX12V1
+3
Vo
lts
+3
Vo
lts
Ground +5
Vo
lts
+5
Vo
lts
Ground Ground Power OK +5V Standby +12
Vo
lts
-5
Vo
lts
+5
Vo
lts
+3
Vo
lts
-12
Vo
lts
Ground Ground Ground PSON# Ground +5
Vo
lts
+12
Vo
lts
+3
Vo
lts
+5
Vo
lts
Ground
9. Power Supply SMBus connector (5-pin PSUSMB1)
This connector allows you to connect SMBus (System Management Bus) to
the power supply unit to read PSU information. Devices communicate with an
SMBus host and/or other SMBus devices using the SMBus interface.
®
KFSN4-DRE Series Power supply SMBus connector
PSUSMB1
+3.3V Remote Sense GND NC I2C_7_D
AT
A#
I2C_7_CLK
#