Chapter 3 | Hardware |
Table
Pin # | Signal | Description | |
64 | PCI_GNT#A | Reserved | |
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66 | PCI_REQ#A | Reserved | |
90 | FAN_TACHOIN | Fan Tachometer Input – This signal provides the speed (or tachometer) | |
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| input from the fan. |
92 | FAN_PWMOUT | Fan Speed Control Out – This output signal uses the Pulse Width | |
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| Modulation (PWM) technique to control the fan's RPM. |
48 | WDTRIG | Watch Dog Trigger Input – This signal provides a watchdog (WDT) | |
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| trigger signal to the system. |
49 | SLP_S3* | S3 (Suspend to RAM) Sleep Control – Signal shuts off power to all non- | |
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| critical systems when in S3, S4, or S5 states |
32 | SUS_STAT* | Suspend Status – This signal indicates the system will be entering a low | |
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| power state soon. |
14, 20 |
| 5V_SB | +5 Volt Standby – Additional suspend voltage. If power supply does not |
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| provide standby voltage, connect this pin to VCC (+5V). |
19, 51, 52, | VCC | DC Power – +5VDC, ±5% | |
74, 80, 83, |
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84 |
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1, 2, 7, 8, | GND | Ground | |
13, 26, 29, |
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35, 36, 42, |
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57, 67, 68, |
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73, 99, 100 |
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34, 60, 62, | NC | Not connected (Reserved) | |
65, 70, 72, |
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76, 78, |
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Notes: The shaded area denotes power or ground. The signals marked with * = Negative true logic.
Table
Pin # | Signal | Description |
1, 2 | GND | Ground |
3 | PCIE_CLK_REF+ | PCI Express Reference Clock, Positive Differential Line |
4 | SATA0_RX+ | Serial ATA Channel 0, Receive Input, Positive Differential Line |
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5 | PCIE_CLK_REF- | PCI Express Reference Clock, Negative Differential Line |
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6 | SATA0_RX- | Serial ATA Channel 0, Receive Input, Negative Differential Line |
7, 8 | GND | Ground |
9 | PCIE3_TX+ | PCI Express Lane 3, Transmit Output, Positive Differential Line |
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10 | SATA0_TX- | Serial ATA Channel 0, Transmit Output, Negative Differential Line |
11 | PCIE3_TX- | PCI Express Lane 3, Transmit Output, Negative Differential Line |
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12 | SATA0_TX+ | Serial ATA Channel 0, Transmit Output, Positive Differential Line |
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13 | GND | Ground |
14 | 5V_SB | +5 Volt Standby – Additional suspend voltage. |
15 | PCIE3_RX+ | PCI Express Lane 3, Receive Input, Positive Differential Line |
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16 | SATA1_RX+ | Serial ATA Channel 1, Receive Input, Positive Differential Line |
32 | Reference Manual | XTX 820 |