AXIOMTEK MMB501, User Manual

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MMB501 LGA1151 ATX Motherboard
8 Board and Pin Assignments
Note
To identify the first pin of a header or jumper, please refer to the following
information:

Usually, there is a thick line or a triangle near the header or jumper pin 1.

Square pad, which you can find on the back of the motherboard, is usually
used for pin 1.
2.3 Jumper Settings
Jumper is a small component consisting of jumper clip and jumper pins. Install jumper clip on 2
jumper pins to close. And remove jumper clip from 2 jumper pins to open. The following
illustration shows how to set up jumper.
Before applying power to MMB501 Series, please make sure all of the jumpers are in factory
default position. Below you can find a summary table of all jumpers and onboard default
settings.
Note
Once the default jumper setting needs to be changed, please do it under power-off
condition.
Jumper Description Setting
JP1
Clear CMOS
Default: Normal Operation
1-2 Close
JP2
AT/ATX Power Mode Select
Default: ATX Mode
1-2 Close
JP3
COM1/2 RS-232/422/485 Mode Select
Default: RS-232
1-2 Close
JP5 3-5, 4-6 Close
JP6 3-5, 4-6 Close
JP4/8
COM1/2 Data/Power Select
Default: RS-232 Data
3-5 Close
4-6 Close