PX845EV1/ PX845EV1 PRO
24
Power Supply Attachments
ATX Power Connector: ATX_PWR & ATX_12V
This mainboard equipments two ATX power connections; a 20-pin connector and a 4-pin
connector, your power supply must have both connectors. Attach the 4-pin connector first,
then attach the 20-pin connector. Make sure the connectors are secure before applying
power.
The layout is PX845EV1 PRO
ATX_12V
PIN
Assignment
PIN
Assignment
1
Ground
3
+12V
2
Ground
4
+12V
ATX_PWR
PIN
Assignment
PIN
Assignment
1
+3.3V
11
+3.3V
2
+3.3V
12
-12V
3
Ground
13
Ground
4
+5V
14
PS_ON
5
Ground
15
Ground
6
+5V
16
Ground
7
Ground
17
Ground
8
PW_OK
18
-5V
9
5V_SB
19
+5V
10
+12V
20
+5V
So
ck
et
4
78
Int
el
8280
1D
B
U6
U1
8
BA
T1
Ph
o
en
ix
Bi
o
s
PC
I3
PC
I5
LA
N
CH
IP
PC
I4
Int
el
82
8
45
E
U1
0
AG
P
CPU
F
AN
AU
X
F
A
N
CH
A
S
F
A
N
DIMM1
DIMM2
DIMM3
SW
/L
ED
SP
E
A
K
E
R
Ir
D
A
ID
E
1
ID
E
2
FDC
US
B
2
U
S
B
3
CA
S
E
O
P
E
N
JP
1
SP
D
IF
FR
O
N
T
AU
D
IO
CD-
IN
ATX_PWR
ATX_12V
ATX_PWR
KB
/M
S
U
S
B/
LA
N
PR
T
/C
O
M
Wi
n
b
o
n
d
W
8362
7HF
SO
U
N
D
A
T
X
_12V
AL
C
65
0
PC
I1
PC
I2