MSI MS-9A59, Manual, Page: 19 / 64

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Overview
MS-9A59
Clear CMOS Jumper: JCMOS1
There is a CMOS RAM onboard that has a power supply from an 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, set the jumper to clear data.
1 1
Normal Clear CMOS
Important
You can clear CMOS by shorting 2-3 pin while the system is off. Then return to
1-2 pin position. Avoid clearing the CMOS while the system is on; it will damage
the motherboard.
AT/ATX Select Jumper: JATX1
This jumper allows users to select between AT and ATX power.
1 1
ATX AT
Serial Port Power Jumper: JCOMP1
This jumper specifies the operation voltage of the COM serial port.
1 1
+5V +12V