13
1.3 Motherboard Layout
1
Power Fan Connector (PWR_FAN1)
2
ATX 12V Power Connector (ATX12V1)
3
1155-Pin CPU Socket
4
CPU Fan Connector (CPU_FAN1)
5
2 x 240-pin DDR3 DIMM Slots
(DDR3_A1, DDR3_B1, Black)
6
ATX Power Connector (ATXPWR1)
7
SATA3 Connector (SATA3_A0, Gray)
8
SATA3 Connector (SATA3_A1, Gray)
9
SATA3 Connector (SATA3_0, Gray)
10
Chassis Fan Connector (CHA_FAN1)
11
USB 3.0 Header (USB3_2_3, Black)
12
Intel B75 Chipset
13
SPI Flash Memory (64Mb)
14
SATA2 Connector (SATA2_1, Black)
15
SATA2 Connector (SATA2_3, Black)
16
SATA2 Connector (SATA2_4, Black)
17
Chassis Speaker Header (SPEAKER1, Black)
18
SATA2 Connector (SATA2_5, Black)
19
SATA2 Connector (SATA2_2, Black)
20
System Panel Header (PANEL1, Black)
21
USB 2.0 Header (USB6_7, Black)
22
USB 2.0 Header (USB8_9, Black)
23
Consumer Infrared Module Header
(CIR1, Gray)
24
Infrared Module Header (IR1)
25
COM Port Header (COM1)
26
Print Port Header (LPT1)
27
Chassis Intrusion Header (CI1)
28
PCI Express 2.0 x16 Slot (PCIE2, Black)
29
PCI Slot (PCI2, Black)
30
PCI Slot (PCI1, Black)
31
PCI Express 3.0 x16 Slot (PCIE1, Black)
32
Front Panel Audio Header
(HD_AUDIO1, Black)
33
Clear CMOS Jumper (CLRCMOS1)
Intel
B75
64Mb
BIOS
D
D
R
3
_
A
1
(6
4
b
it
,
2
4
0
-p
in
m
o
d
u
le
)
CMOS
Battery
Super
I/O
A
T
X
P
W
R
1
PCI1
D
D
R
3
_
B
1
(6
4
b
it
,
2
4
0
-p
in
m
o
d
u
le
)
PCIE1
PCIE2
PCI2
ATX12V1
P
S
2
K
e
y
b
o
a
rd
P
S
2
M
o
u
s
e
V
G
A
1
D
V
I1
H
D
M
I1
AUDIO
CODEC
LAN
PHY
Top:
RJ-45
USB 2.0
T: USB4
B: USB5
T
o
p
:
L
in
e
In
C
e
n
te
r:
F
ro
n
t
B
o
tt
o
m
:
M
ic
In
USB 3.0
T: USB0
B: USB1
USB 2.0
T: USB2
B: USB3
H
D
_
A
U
D
IO
1
1
COM1
1
IR1
1
USB8_9
1
CIR1
1
USB6_7
1
HDLED RESET
PLED PWRBTN
PANEL1
1
SATA2_1
1
SPEAKER1
SATA2_2
SATA2_3
SATA2_4
SATA2_5
S
A
T
A
3
_
0
S
A
T
A
3
_
A
0
S
A
T
A
3
_
A
1
PWR_FAN1
CPU_FAN1
CHA_FAN1
CLRCMOS1
1
B75M
PCI Express 3.0
X
Fast USB
X
Fast LAN
X
Fast RAM
E
r
P
/E
u
P
R
e
a
d
y
RoHS
Front USB 3.0
D
D
R
3
LPT1
2
4
.4
c
m
(9
.6
in
)
8.4cm (21.3 in)
1
2
3
4
5
6
7
8
11
9
12
10
14
13
15
16
18
19
17
20
21
22
23
24
25
26
27
28
29
30
31
USB3_2_3
1
CI1
32
33