Biostar G31M+ Owner's Manual | Page 17

Biostar Motherboards Owner's Manual - G31M+.
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G31M+ 

15 

 

JCMOS1: Clear CMOS Header 

Placing the jumper on pin2-3 allows user to restore the BIOS safe setting and 
the CMOS data, please carefully follow the procedures to avoid damaging the 

motherboard. 

1

3

 

 
Pin 1-2 Close: 
Normal Operation 
(Default). 

1

3

 

1

3

 

 
Pin 2-3 Close: 
Clear CMOS data. 

  Clear CMOS Procedures: 

1. 

Remove AC power line. 

2. 

Set the jumper to “Pin 2-3 close”. 

3. 

Wait for five seconds. 

4. 

Set the jumper to “Pin 1-2 close”. 

5. 

Power on the AC. 

6. 

Reset your desired password or clear the CMOS data. 

 

SATA1~SATA4: Serial ATA Connectors 

The motherboard has a PCI to SATA Controller with 4channels SATA interface, it 
satisfies the SATA 2.0 spec and with transfer rate of 3Gb/s. 

 

 

Pin Assignment 

1 Ground 
2 TX+ 
3 TX- 
4 Ground 
5 RX- 
6 RX+ 

1

4

7

SATA1  SATA2

SATA4

SATA3

 

7 Ground 

 

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