Acer Aspire M3920 Service Guide - Page 73

Connecting Optional Devices Refer to the following for information on connecting the main board's optional devices: SATA0~5: Serial ATA connectors These connectors are used to support the new Serial ATA devices for the highest datatransfer rates (3.0 Gb/s), simpler disk drive cabling and easier PC assembly. It elimi-nates limitations of the current Parallel ATA interface. But maintains register com-patibility and software compatibility with Parallel ATA. Pin Signal Name Pin Signal Name 1 Ground 2 TX+ 3 TX- 4 Ground 5 RX- 6 RX+ 7 Ground AUDIOF_F: Front Panel Audio header This header allows the user to install auxiliary front-oriented microphone and line-out ports for easier access. Pin Signal Name 1 PORT 1L 3 PORT 1R 5 PORT 2R 7 SENSE_SEND 9 PORT 2L Pin Signal Name 2 AUD_GND 4 PRESENCE# 6 SENSE1_RETURN 8 KEY 10 SENSE2_RETURN Chapter 5 65