Biostar B350GT3 Manual - page 15

Chapter 2: Hardware installation | 15

B350GT3 & X370GT3

ATXPWR2: ATX Power Source Connector

The connector provides +12V to the CPU power circuit. If the CPU power plug is 4-pin, please

plug it into Pin 1-2-5-6 of ATXPWR2.

Pin Assignment

1

+12V

2

+12V

3

+12V

4

+12V

5

Ground

6

Ground

7

Ground

8

Ground

Note

»

   Before you power on the system, please make sure that both ATXPWR1 and ATXPWR2 connectors

have been plugged-in.

»

   Insufficient power supplied to the system may result in instability or the peripherals not functioning

properly. Use of a PSU with a higher power output is recommended when configuring a system with

more power-consuming devices.

PANEL1: Front Panel Header

This 16-pin header includes Power-on, Reset, HDD LED, Power LED, and speaker connection.

Pin Assignment Function

Pin Assignment

Function

1

+5V

Speaker 

Connector

9

N/A

N/A

2

N/A

10 N/A

3

N/A

11 N/A

N/A

4

Speaker

12 Power LED (+)

Power 

LED

5

HDD LED (+) Hard drive 

LED

13 Power LED (+)

6

HDD LED (-)

14 Power LED (-)

7

Ground

Reset 

button

15 Power button Power-on 

button

8

Reset control

16 Ground

SATA3_1/3_2/3_3/3_4: Serial ATA 6.0 Gb/s Connectors

These connectors connect to SATA hard disk drives via SATA cables.

Pin Assignment

1

Ground

2

TX+

3

TX-

4

Ground

5

RX-

6

RX+

7

Ground