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Chapter 2: Installation
Fan Headers
There are two fan headers on the motherboard. FANC1 is the CPU fan, and FANS1 is the
system fan. These are 4-pin fan headers; pins 1-3 are backward compatible with traditional
3-pin fans. The onboard fan speeds are controlled by Thermal Management (via Hardware
Monitoring) in the BIOS. When using Thermal Management setting, please use all 3-pin fans
or all 4-pin fans.
Headers
Fan Header
Pin Definitions
Pin#
Definition
1
Ground
2
+12V (Red)
3
Tachometer
4
PWM Control
Speaker Header
SPK1 is the internal audio speaker header.
I-SATA0
I-SATA1
PCHDR1
BUZ1
NGFFB1
DBGH1
TPMH1
CN1
I-SATA5
I-SATA4
I-SATA3
USB2/3 (2.0)
CRF1
WP1
PCH SLOT5 PCI-E 3.0 X1
PCH SLOT6 PCI-E 3.0 X1
CPU SLOT7 PCI-E 3.0 X16
AUDF1
SPK1
CSOPN1
OBR1
USB8/9 (3.0)
CMOS1
GPIO1
GPIO2
COM1
LEDH1
BT1
CN2
FANC1
FANS1
FANS2
DIMMA2
DIMMB1
KB/MOUSE
USB0/1
LAN1
USB4/5/6/7
(3.0)
AUDIO
HS1
C7C232-CB-ML
DIMMA1
DIMMB2
Rev. 1.00
CPU
PCH
USB2F1
USB3F1
1. FANC1
2. FANS1
3. Speaker Header
1
2
Speaker header
Pin Definitions
Pin#
Definition
Pin#
Definition
1
MONO_L
2
AUDIO_GROUND
3
MONO_R
4
X
5
AUDIO_GROUND
6
AUDIO_GROUND
7
MUTE_C
8
5V
3
