Gigabyte GA-H55M-S2V Manual - Page 21

CPU_FAN/SYS_FAN Fan Headers, SATA2_0/1/2/3/4/5 SATA 3Gb/s Connectors, Controlled by H55 Chipset

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Page 21 highlights

3/4) CPU_FAN/SYS_FAN (Fan Headers) The motherboard has a 4-pin CPU fan header (CPU_FAN) and a 3-pin system fan header (SYS_FAN). Most fan headers possess a foolproof insertion design. When connecting a fan cable, be sure to connect it in the correct orientation (the black connector wire is the ground wire). The motherboard supports CPU fan speed control, which requires the use of a CPU fan with fan speed control design. For optimum heat dissipation, it is recommended that a system fan be installed inside the chassis. 1 CPU_FAN CPU_FAN: Pin No. Definition 1 GND 2 +12V / Speed Control 3 Sense 4 Speed Control 1 SYS_FAN SYS_FAN: Pin No. 1 DefinitioDnEBUG GND PORT DEBUG PORT DEBUG PORT 2 +12V 3 Sense DEBUG DEBUG DEBUG PORT PORT PORT • Be sure to connect fan cables to the fan headers to prevent your CPU and system from overheating. Overheating may result in damage to the CPU or the system may hang. • These fan headers are not configuration jumper blocks. Do not place a jumper cap on the headers. 5) SATA2_0/1/2/3/4/5 (SATA 3Gb/s Connectors, Controlled by H55 Chipset) The SATA connectors conform to SATA 3Gb/s standard and are compatible with SATA 1.5Gb/s standard. Each SATA connector supports a single SATA device. SATA2_2 SATA2_1 SATA2_0 7 7 7 1 1 1 SATA2_5 SATA2_4 SATA2_3 Pin No. 1 2 3 4 5 6 7 Definition GND TXP TXN GND RXN RXP GND - 21 - Please connect the L-shaped end of the SATA cable to your SATA hard drive. Hardware Installation

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- 21 -
Hardware Installation
3/4) CPU_FAN/SYS_FAN (Fan Headers)
The motherboard has a 4-pin CPU fan header (CPU_FAN) and a 3-pin system fan header (SYS_FAN).
Most fan headers possess a foolproof insertion design. When connecting a fan cable, be sure to connect
it in the correct orientation (the black connector wire is the ground wire). The motherboard supports CPU
fan speed control, which requires the use of a CPU fan with fan speed control design. For optimum heat
dissipation, it is recommended that a system fan be installed inside the chassis.
•
Be sure to connect fan cables to the fan headers to prevent your CPU and system from over-
heating. Overheating may result in damage to the CPU or the system may hang.
•
These fan headers are not configuration jumper blocks. Do not place a jumper cap on the
headers.
CPU_FAN
1
CPU_FAN:
Pin No.
Definition
1
GND
2
+12V / Speed Control
3
Sense
4
Speed Control
SYS_FAN
SYS_FAN:
Pin No.
Definition
1
GND
2
+12V
3
Sense
1
5)
SATA2_0/1/2/3/4/5 (SATA 3Gb/s Connectors, Controlled by H55 Chipset)
The SATA connectors conform to SATA 3Gb/s standard and are compatible with SATA 1.5Gb/s standard.
Each SATA connector supports a single SATA device.
Pin No.
Definition
1
GND
2
TXP
3
TXN
4
GND
5
RXN
6
RXP
7
GND
1
7
SATA2_3
1
7
1
7
SATA2_4
SATA2_5
SATA2_0
SATA2_1
SATA2_2
Please connect the L-shaped end of
the SATA cable to your SATA hard
drive.