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PCI Express Full-/Half-Mini Card Connector (continued) Pin Signal Name Additional Signal Name 39 +3.3 Vaux (mSATA) Vendor 40 GND 41 +3.3 Vaux (mSATA) Vendor 42 LED_WWAN# 43 Reserved 44 LED_WLAN# 45 Reserved (mSATA) Vendor 46 LED_WPAN# 47 Reserved (mSATA) Vendor 48 +1.5V 49 Reserved (mSATA) DA/DSS 50 GND 51 Reserved (mSATA) Presence Detection 52 +3.3V NOTE NOTE The mSATA signals are routed only to the PCI Express Full-Mini Card connector and not to the Half-Mini Card connector. These signals are required to support mSATA modules. Table 15. Dual-Port Front Panel USB 2.0 Header Pin Signal Name Pin Signal Name 1 +5 V DC 2 +5 V DC 3 D. 4 D. 5 D+ 6 D+ 7 Ground 8 Ground 9 KEY (no pin) 10 No Connect Table 16. SATA Connector Pin Signal Name 1 Ground 2 TXP 3 TXN 4 Ground 5 RXN 6 RXP 7 Ground Table 17. SATA Power Connector Pin Signal Name 1 3.3 V DC 2 3.3 V DC 3 3.3 V DC 4 Ground 5 Ground 6 Ground 7 5 V DC 8 5 V DC 9 5 V DC 10 Ground 11 Ground 12 Ground 13 N/A 14 N/A 15 N/A Table 18. System ID / Custom Solutions Header (2.0 mm Pitch) Pin Signal Name Pin Signal Name 1 Prog_LED 2 GND 3 HDMI_CEC 4 DMIC_CLK 5 3.3 Vsby 6 DMIC_DATA 7 Key (no pin) 8 SCI/SMI GPIO 9 5 Vsby (2A) 10 WDTO#/GPIO 2.2.3.2 Add-in Card Connectors The board has the following add-in card connectors: • One PCI Express Half-Mini Card • One PCI Express Full-Mini Card 2.2.3.3 Power Supply Connectors The board has the following power supply connectors: • External Power Supply – the board can be powered through a 12-19 V DC connector on the back panel. The back panel DC connector is compatible with a 5.5 mm/OD (outer diameter) and 2.5 mm/ID (inner diameter) plug, where the inner contact is +19 (±10%) V DC and the shell is GND. The maximum current rating is 10 A. NOTE External power voltage, 12-19 V DC, is dependent on the type of power brick used. • Internal Power Supply – the board can alternatively be powered via the internal 12-24 V DC 1 x 2 power connector, where pin 1 is GND and pin 2 is +19 (±10%) V DC. Table 19. 12-24 V Internal Power Supply Connector Pin Signal Name 1 Ground 2 +19 V (±10%) For information about Refer to Power supply considerations Section 2.5.1, page 52 2.2.3.4 Front Panel Header (2.0 mm Pitch) This section describes the functions of the front panel header. Table 20 lists the signal names of the front panel header. Figure 11 is a connection diagram for the front panel header. Table 20. Front Panel Header (2.0 mm Pitch) Pin Signal Name Description Pin Signal Name Description 1 HDD_POWER_LED Pull-up resistor (750 .) to +5V 2 POWER_LED_MAIN [Out] Front panel LED (main color) 3 HDD_LED# [Out] Hard disk activity LED 4 POWER_LED_ALT [Out] Front panel LED (alt color) 5 GROUND Ground 6 POWER_SWITCH# [In] Power switch 7 RESET_SWITCH# [In] Reset switch 8 GROUND Ground 9 +5V_DC Power 10 Key No pin Figure 11. Connection Diagram for Front Panel Header (2.0 mm Pitch) 2.2.3.4.1 Hard Drive Activity LED Header Pins 1 and 3 can be connected to an LED to provide a visual indicator that data is being read from or written to a hard drive. Proper LED function requires a SATA hard drive or optical drive connected to an onboard SATA connector. 2.2.3.4.2 Reset Switch Header Pins 5 and 7 can be connected to a momentary single pole, single throw (SPST) type switch that is normally open. When the switch is closed, the board resets and runs the POST. 2.2.3.4.3 Power/Sleep LED Header Pins 2 and 4 can be connected to a one- or two-color LED. Table 21 shows the possible LED states. Table 21. States for a One-Color Power LED LED State Description Off Power off Blinking Standby Steady Normal operation NOTE The LED behavior shown in Table 21 is default – other patterns may be set via BIOS setup. 2.2.3.4.4 Power Switch Header Pins 6 and 8 can be connected to a front panel momentary-contact power switch. The switch must pull the SW_ON# pin to ground for at least 50 ms to signal the power supply to switch on or off. (The time requirement is due to internal debounce circuitry on the board.) At least two seconds must pass before the power supply will recognize another on/off signal. 2.2.3.5 System ID / Custom Solutions Header (2.0 mm Pitch) The System ID / Customs Solution header is provided to aid customers in developing custom applications. • Prog_LED#: general purpose signal output that indicates when an event was triggered by the operating system. Signal is amplified by a transistor. Intel can provide sample code for customers who may want to write their own applications leveraging this signal. • SMB_CLK and SMB_DATA: SMBus interface, reserved for future support of All-In- One chassis detection. General SMBus information can be found on the platform EDS and at • 3.3 V Standby: can be used to monitor the presence of 3.3 V standby power. • PWRBT#: power button signal (functions in the same manner as the power button pin on the front panel header). • HDMI Consumer Electronics Control (CEC): standard communication signal from the Mini HDMI connector...
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