Biostar A320MH User Manual

14 | Chapter 2: Hardware installaon
2.7 Headers & Connectors
ATXPWR1: ATX Power Source Connector
For beer compability, we recommend to use a standard ATX 24-pin power supply for this
connector. Make sure to nd the correct orientaon before plugging the connector.
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
ATXPWR2: ATX Power Source Connector
The connector provides +12V to the CPU power circuit.
Pin Assignment
1 +12V
2 +12V
3 Ground
4 Ground
Note
»
 Beforeyoupoweronthesystem,pleasemakesurethatbothATXPWR1andATXPWR2connectors
havebeenplugged-in.
»
 Insucientpowersuppliedtothesystemmayresultininstabilityortheperipheralsnotfunconing
properly.UseofaPSUwithahigherpoweroutputisrecommendedwhenconguringasystemwith
morepower-consumingdevices.

Biostar A320MH Specifications

General

Form Factor	Micro ATX
Chipset	AMD A320
CPU Socket	AM4
Memory Slots	2 x DIMM
Max Memory	32 GB
Video Outputs	1 x HDMI, 1 x VGA
LAN	Realtek RTL8111H Gigabit LAN
Memory Speed	DDR4 1866/2133/2400/2667 MHz