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M S-7250 M ainboard
20
Clear CMOS Button
The CMOS RAM onboard has a power supply from external battery to keep the data of system configuration. With the CMOS
RAM, the system can automatically boot OS every time it is turned on. If you want to clear the system configuration, use the
Clear CMOS Button to clear data. Press the button in the middle of the connector top side to clear the data.
Important
Make sure that you power off the system before clearing CMOS data.
Power Supply Attachment
Before inserting the power supply connector, always make sure that all components
are installed properly to ensure that no damage will be caused. All power connectors
on the mainbnoard have to connect to the ATX power supply and have to work to-
gether to ensure stable operation of the mainboard.
21
ATX 24-Pin Power Connector
This connector allows you to connect an ATX 24-pin power supply. T o connect the ATX
24-pin power supply, make sure the plug of the power supply is inserted in the proper
orientation and the pins are aligned. Then push down the power supply firmly into the
connector.
10 20
12V
5V
5VSB
5V
PWR OK
-5V
GND
GND
5V
GND
GND
GND
5V
PS-ON
GND
GND
-12V
3.3V
3.3V
3.3V
1
11
ATX 12V Power Connector (2x2-Pin)
23
These 12V power connectors is used to provide power to the CPU.
24
ATX 12V Power Connector (2x4-Pin)
These 12V power connectors is used to provide power to the CPU.
25
ATX 12V Power Connector (1x4-Pin)
These 12V power connectors is used to provide power to the graphics card.
En-10
22
ATX 20-Pin Power Connector
This connector allows you to connect an ATX 20-pin power supply. To connect the ATX
20-pin power supply, make sure the plug of the power supply is inserted in the proper
orientation and the pins are aligned. Then push down the power supply firmly into the
connector.
12 24
+3.3V
+12V
+12V
5VSB
PWR OK
GND
+5V
GND
+5V
GND
+3.3V
+3.3V
1
13
1
2
GND
GND
12V
12V
4
3
5
1
+12V
GND
+12V
GND
+12V
GND
+12V
GND
8 4
5V
1
2
GND
3
GND
12V
4
GND
+5V
+5V
+5V
NC
GND
GND
GND
PS-ON#
GND
-12V
+3.3V
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