Front USB
# | Pin Definition | Description | |
1 | VREG_FP_USBPWR0 | Front panel USB power (ports 0 & 1) | |
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2 | VREG_FP_USBPWR0 | Front panel USB power (ports 0 & 1) | |
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3 | USB_FP_P0- | Front panel USB port 0 negative signal | |
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4 | USB_FP_P1- | Front panel USB port 1 negative signal | |
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5 | USB_FP_P0+ | Front panel USB port 0 positive signal | |
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6 | USB_FP_P1+ | Front panel USB port 1 positive signal | |
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7 | GND | Ground | |
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8 | GND | Ground | |
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9 | Key | Key | |
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10 | USB_FP_OC0 | Front panel USB over current signal (port 0 | |
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| & 1) |
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Front Audio (AC’97)
# | Pin Definition | Description | |
1 | AUD_MIC | Front panel microphone input signal | |
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2 | AUD_GND | Ground used by analog audio circuits | |
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3 | AUD_MIC_BIAS | Microphone power | |
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4 | AUD_VCC | Filtered +5V used by analog audio circuits | |
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5 | AUD_FPOUT_R | Right channel audio signal to front panel | |
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6 | AUD_RET_R | Right channel audio signal return from | |
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| front panel |
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7 | HP_ON | RSVD for future use to control headphone | |
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| amplifier |
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8 | Key | No pin | |
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9 | AUD_FPOUT_L | Left channel audio signal to front panel | |
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10 | AUD_RET_L | Left channel audio signal return from | |
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| front panel |
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57 | Chapter 5 |
