EPIA-M840 Operating Guide
July 27, 2010
- 15 -
Version 1.02
Power Specifications
The VIA EPIA-M840 mainboard is available with two power options: ATX and 12V DC. The ATX SKU utilizes an
industry standard 20-pin ATX power connector for connecting to the power supply. The DC-in SKU utilizes the
industry standard ATX12V DC connector.
ATX
SKU
DC-
IN
SKU
Pin
Signal
Pin
Signal
1
+3.3V
11
+3.3V
2
+3.3V
12
-12V
3
Gnd
13
Gnd
4
+5V
14
PS_ON
5
Gnd
15
Gnd
6
+5V
16
Gnd
7
Gnd
17
Gnd
8
PW_OK
18
-5V
9
+5V_SB
19
+5V
10
+12V
20
+5V
Pin
Signal
Pin
Signal
1
Gnd
3
+12VDC
2
Gnd
4
+12VDC
