User`s manual

MINIX
890GX/880G-USB3 User's Manual
- 17 -
3
4
GND
GND
+12V
+12V
1 2
PWR12V
9/11- ATX Power Input Connectors
ATXPWR (ATX Power) connector
We recommend to use our motherboard with a power supply that complies with the ATX12V
Power Supply Design Guide Version 1.1. Every ATX12V power supply unit has a standard
24-pin ATX main power connector that must be plugged into this connector. If you would like
to use an old power supply with only a 20-pin ATX main power connector, then please plug
the 20-pin ATX main power connector along with pin 1 and pin 13.
PWR12V (+12V Power) connector
Your power supply unit may come with a 4-pin or 8-pin +12V power connector. The +12V
power enables the delivery of more +12VDC current to the CPU's Voltage Regulator Module
(VRM). If available, please use the 8-pin power; otherwise please connect the 4-pin power
to this connector.
1
13
10
20
+ .3 3V
+5 V
GND
PWRG D
PS ON-
N C/
+ .3 3V
GND
+1 2V
+5 V
GND
+5 VSB
+ .3 3V
-1 2V
GND
GND
GND
GND
+5 V
+5 V
ATXPWR
6-JCOM1(Serial Port Header)
This JCOM1 header supports a serial port module.
Pin No. Denition Pin No. Denition
1 DCD 2 RXD
3 TXD 4 DTR
5 GND 6 DSR
7 RTS 8 CTS
9 RI
8- BT1(Battery)
Install the motherboard battery.