Headers & Connectors - Biostar Z490T-SILVER Manual

2.7 Headers & Connectors
ATX: ATX Power Source Connector
For better compatibility, we recommend to use a standard ATX 24-pin power supply for this
connector. Make sure to find the correct orientation before plugging the connector.
ATX_12V_2X1: 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 ATX_12V_2X1.
Note
» Before you power on the system, please make sure that both ATX and ATX_12V_2X1 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.
PANEL: Front Panel Header
This connector includes Power-on, Reset, HDD LED and Power LED connections. It allows user
to connect the PC case's front panel switch functions.
Pin Assignment Pin
13 +3.3V 1
14 -12V 2
15 Ground 3
16 PS_ON 4
17 Ground 5
18 Ground 6
19 Ground 7
20 NC 8
21 +5V 9
22 +5V 10
23 +5V 11
24 Ground 12
Pin Assignment
1 +12V
2 +12V
3 +12V
4 +12V
5 Ground
6 Ground
7 Ground
8 Ground
Pin Assignment Function Pin Assignment
1 HDD LED(+) HDD
LED
3 HDD LED(-)
5 Ground Reset
7 Reset Control Button
9 NC NC
Chapter 2: Hardware installation | 15
Z490T-SILVER
Assignment
+3.3V
+3.3V
Ground
+5V
Ground
+5V
Ground
PW_OK
Standby Voltage+5V
+12V
+12V
+3.3V
Function
2 Power LED (+) Power
LED
4 Power LED (-)
6 Power Button Power-On
8 Ground Button
10 NA NA