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Intel Desktop Board D2700MUD Technical Product Specification 1.11.1.2 Wake-up Devices and Events Table 8 lists the devices or specific events that can wake the computer from specific states. Table 9. Wake-up Devices and Events Devices/events that wake up the system… …from this sleep state Power switch S3, S4, S5 (Note 1) RTC alarm S3, S4, S5 (Note 1) LAN S3, S4, S5 (Note 1) USB S3 (Note 2) WAKE# S3, S4, S5 (Note 1) PME# signal S3, S4, S5 (Note 1) Serial port S3 PS/2 devices S3, S4, S5 (Notes 1 and 3) Notes: 1. S4 implies operating system support only. 2. USB ports must be turned off during S4/S5 states. 3. PS/2 wake from S5 should have a selection in the BIOS to enable wake from a combination key (Alt + Print Screen) or the keyboard power button. NOTE The use of these wake-up events from an ACPI state requires an operating system that provides full ACPI support. In addition, software, drivers, and peripherals must fully support ACPI wake events. Product Description 1.11.2 Hardware Support The board provides several power management hardware features, including: • Power connector • Fan header • LAN wake capabilities • Instantly Available PC technology • Wake from USB • Wake from PS/2 devices • Power Management Event signal (PME#) wake-up support • WAKE# signal wake-up support • +5V Standby Power Indicator LED LAN wake capabilities and Instantly Available PC technology require power from the +5 V standby line. NOTE The use of Wake from USB technologies from an ACPI state requires an operating system that provides full ACPI support. 1.11.2.1 Fan Header The function/operation of the fan header is as follows: • The fan is on when the board is in the S0 state. • The fan is off when the board is off or in the S3, S4, or S5 state. • The system fan header supports closed-loop fan control that can adjust the fan speed and is wired to a fan tachometer input. • The fan header supports +12 V, 3-wire fans at 1 A maximum. For information about Refer to The locations of the fan header and thermal sensors Figure 6, page 29 The signal names of the system fan header Table 17, page 46 1.11.2.2 LAN Wake Capabilities LAN wake capabilities enable remote wake-up of the computer through a network. The LAN subsystem network adapter monitors network traffic at the Media Independent Interface. The board supports LAN wake capabilities with ACPI in the following ways: • By Ping • By Magic Packet Upon detecting the configured wake packet type, the LAN subsystem asserts a wake- up signal that powers up the computer. Intel Desktop Board D2700MUD Technical Product Specification 1.11.2.3 Instantly Available PC Technology Instantly Available PC technology enables the board to enter the ACPI S3 (Suspend-to- RAM) sleep-state. While in the S3 sleep-state, the computer will appear to be off (the hard drive(s) and fan will power off, the front panel LED will blink). When signaled by a wake-up device or event, the system quickly returns to its last known state. Table 8 on page 32 lists the devices and events that can wake the computer from the S3 state. The board supports the PCI Bus Power Management Interface Specification. Add-in boards that also support this specification can participate in power management and can be used to wake the computer. 1.11.2.4 Wake from USB USB bus activity wakes the computer from an ACPI S3 state. NOTE Wake from USB requires the use of a USB peripheral that supports Wake from USB and support in the operating system. 1.11.2.5 PME# Signal Wake-up Support When the PME# signal on the PCI bus is asserted, the computer wakes from an ACPI S3, S4, or S5 state (with Wake on PME enabled in the BIOS). 1.11.2.6 Wake from PS/2 Devices PS/2 keyboard activity wakes the computer from an ACPI S3, S4, or S5 state. However, when the computer is in an ACPI S4 or S5 state, the only PS/2 activity that will wake the computer is the Alt + Print Screen or the Power Key available only on some keyboards. 1.11.2.7 WAKE# Signal Wake-up Support When the WAKE# signal on the PCI Express bus is asserted, the computer wakes from an ACPI S3, S4, or S5 state. 1.11.2.8 Wake from Serial Port Serial Port activity wakes the computer from an ACPI S3 state. Product Description 1.11.2.9 +5 V Standby Power Indicator LED The +5 V standby power indicator LED shows that power is still present even when the computer appears to be off. Figure 7 shows the location of the standby power indicator LED. CAUTION If AC power has been switched off and the standby power indicator is still lit, disconnect the power cord before installing or removing any devices connected to the board. Failure to do so could damage the board and any attached devices. Figure 7. Location of the Standby Power Indicator LED Intel Desktop Board D2700MUD Technical Product Specification Technical Reference 2.1 Memory Map 2.1.1 Addressable Memory The board utilizes 4 GB of addressable system memory. Typically the address space that is allocated for Conventional PCI bus add-in cards, PCI Express config...