Headers & Connectors - Biostar Z490GTA EVO User Manual

LN2_SW1: LN2 Mode Switch
When the LN2 mode is ON, the CPU will run at its lowest frequency (e.g., 800MHz) to avoid
unexpected system shutdown.
Note
» We are not responsible for the damages or risks caused by overclocking.
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.
OFF (Default)
ON
Pin Assignment Pin Assignment
13 +3.3V 1 +3.3V
14 -12V 2 +3.3V
15 Ground 3 Ground
16 PS_ON 4 +5V
17 Ground 5 Ground
18 Ground 6 +5V
19 Ground 7 Ground
20 NC 8 PW_OK
21 +5V 9 Standby Voltage+5V
22 +5V 10 +12V
23 +5V 11 +12V
24 Ground 12 +3.3V
Chapter 2: Hardware installation | 15
Z490GTA EVO