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Intel H55 series Motherboard
Speaker Header-SPK1
Serial-ATA (SATA) Connectors (SATA1~5)
The Serial ATA connector is used to connect the Serial
ATA device to the motherboard. These connectors
support the thin Serial ATA cables for primary storage
devices. The current Serial ATA interface allows up to
300 MB/s data transfer rate. There are six serial ATA
connectors on the motherboard that support AHCI
conguration.
SPK1-Pin Denition
PIN Assignment
1 VCC
2 NC
3 NC
4 SPK-
SATA-Pin Denition
Pin Signal
1 GND
2 TXP
3 TXN
4 GND
5 RXN
6 RXP
7 GND
Fan Connectors
There are three fan connectors on the motherboard,
including system fan connectors-SYSFAN1 and
SYSFAN2, CPU fan connector-CPUFAN1.
SPK1
1