MMB501 LGA1151 ATX Motherboard
Board and Pin Assignments
19
ATX1 24-pin power input connector (CN16):
2.4.9
SMBus Header (CN18)
The CN18 (5x1-pin p=2.00mm) is for SMBus (System Management Bus) interface.
2.4.10
Fan Connectors (CN19~CN21)
This motherboard has three fan connectors. Find fan speed option(s) at BIOS Setup
Utility: Advanced\HW Monitor\PC Health Status.
The CN19 (4x1-pin p=2.54mm) is for CPU fan connector.
The CN20 and CN21 (4x1-pin p=2.54mm) are for system fan connectors.
Pin CN34 Signal
Pin CN34 Signal
1
3.3V
13
3.3V
2
3.3V
14
-12V
3
GND
15
GND
4
+5V
16
PS_ON
5
GND
17
GND
6
+5V
18
GND
7
GND
19
GND
8
PWR OK
20
-5V
9
5VSB
21
+5V
10
+12V
22
+5V
11
+12V
23
+5V
12
3.3V
24
GND
Pin
Signal
Pin Signal
1
SMB_SCL
2
N/C
3
GND
4
SMB_SDA
5
+5V
Pin
Signal
1
GND
2
+12V
3
FAN Speed Detection
4
FAN Speed Control
Pin
Signal
1
GND
2
+12V
3
FAN Speed Detection
4
FAN Speed Control
Summary of Contents for MMB501
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