Intel AIMB-253 - Manual (Page 21)

11 Chapter 2 Hardware Setup
2.4 Power Supply
2.4.1 ATX 20-Pin System Power Connector: ATX1
This connector allows you to connect to an ATX power supply. To con-
nect to the ATX power supply, make sure the plug of the power supply is
inserted in the proper orientation and the pins are aligned. Then push
down the power supply firmly into the connector.
Figure 2.2: ATX 20-Pin System Power Connector: ATX1
Table 2.1: ATX1 Pin Definition
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
Note Power supply of 350 watts (and above) is highly recommended
for system stability.
ATX1
10 1
20 11