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Chapter 2
2.4 Power Supply
The system is equipped with a 250W(PFC) ATX power supply. The power
cord of power supply has been connected to the connector JWR1 on the mainboard
when shipped out. Except the 20-pin connector JWR1, you can find another
4-pin power connector JPW1 on the mainboard.
JWR1 Pin Definition
PIN
SINGAL
1
3.3V
2
3.3V
3
GND
4
5V
5
GND
6
5V
7
GND
8
PW_OK
9
5V_SB
10
12V
JPW1 Pin Definition
PIN
1
2
3
4
Power Supply Specification
D i m e n s i o n
P F C
W a t t a g e
E l e c t r i c a l D e s i g n
S p e c i f i c a t i o n
C e r t i f i c a t e
2-6
PIN
SIGNAL
11
3.3V
12
-12V
13
GND
14
PS_ON
15
GND
16
GND
17
GND
18
19
5V
20
5V
SINGAL
GND
GND
12V
12V
7 0 ( H ) x 1 4 5 0 ( W ) x 1 0 5 ( D ) m m
Y e s ( p a s s i v e )
2 5 0 W M a x
A C O u t p u t : 1 0 0 - 1 2 7 / 2 0 0 - 2 4 0 V A C ,
S w i t c h S e l e c t a b l e , A u t o P r o t e c t i o n
D C O u t p u t : + 3 . 3 V 1 7 A
: + 5 V 1 2 A
: + 1 2 V
1 3 . 5
: - 1 2 V 0 . 5 A
: + 5 V s b 3 A
: + 1 2 V s b 2 . 5 A
8 0 m m P W M F a n
F C C / U L / C U L / B S M I / C B / N E M K O / T U V
10
20
1
11
JWR1
3
4
1
2
JPW1
A
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