Biostar A55ML+ Owner's Manual | Page 12

Biostar Motherboards Owner's Manual - A55ML+.
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Motherboard Manual 

10 

2.4 CONNECTORS AND SLOTS 

 

SATA1~SATA4: Serial ATA Connectors 

The motherboard has a PCI to SATA Controller with 4 channels SATA interface, 

it satisfies the SATA 2.0 spec and with transfer rate of 3.0Gb/s. 

 
 
 

Pin 

 
 
 
Assignment 

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

7

4

1

SATA1

SATA2  SATA4

SATA3

7

4

1

 

7 Ground 

 
 

ATXPWR2: ATX Power Source Connector 

This connector will provide +12V to CPU power circuit. 

 
 
 
 

Pin 

 
 

     

 
Assignment 

1 +12V 
2 +12V 
3 Ground 

 

4

1

2

3

 

4 Ground 

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