I945P-A7 v1.x user's manual
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... SATA3 2 TX+ 3 TX- 1 4 Ground 5 RX- 4 6 RX+ 7 Ground Codec 7 SATA2 SATA1 JPANEL1: Front Panel Header This 24-pin connector includes Power-on button IrDA Connector 21 I945P-A7 SATA1~SATA4: Serial ATA Connectors The motherboard has a PCI to connect the PC case's front panel switch functions. RST HLED SPK 21 Function Pin Assignment... +5V 23 IRTX 24 23 IR IR On/Off PWR_LED SLP ++ +- It allows user to SATA Controller with 4 channels SATA interface, it satisfies the SATA 2.0 spec and with transfer rate of 3Gb/s.
... SATA3 2 TX+ 3 TX- 1 4 Ground 5 RX- 4 6 RX+ 7 Ground Codec 7 SATA2 SATA1 JPANEL1: Front Panel Header This 24-pin connector includes Power-on button IrDA Connector 21 I945P-A7 SATA1~SATA4: Serial ATA Connectors The motherboard has a PCI to connect the PC case's front panel switch functions. RST HLED SPK 21 Function Pin Assignment... +5V 23 IRTX 24 23 IR IR On/Off PWR_LED SLP ++ +- It allows user to SATA Controller with 4 channels SATA interface, it satisfies the SATA 2.0 spec and with transfer rate of 3Gb/s.