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Desktop Board Features
19
Hardware Management
• Power connectors
• Fan connectors
• Resume on Ring
• Wake from USB
• Wake from PS/2 keyboard/mouse
• PME# wakeup support
Power Connectors
The Desktop Boards D845EPT2 and D845EBG2 have two power connectors. See Figure 15 on
page 64 for the location of the power connectors.
Fan Connectors
The Desktop Boards D845EPT2 and D845EBG2 have two chassis fan connectors and one
processor fan connector. See Figure 15 on page 64 for the location of the fan connectors.
Resume on Ring
The operation of Resume on Ring can be summarized as follows:
• Resumes operation from either ACPI S1 or ACPI S3 state
• Requires only one call to access the computer
• Detects incoming call similarly for external and internal modems
• Requires modem interrupt be unmasked for correct operation
Wake from USB
USB bus activity wakes the computer from an ACPI S1 or S3 state.
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NOTE
Wake from USB requires the use of a USB peripheral that supports Wake from USB.
Wake from PS/2 Keyboard/Mouse
PS/2 keyboard/mouse activity wakes the computer from an ACPI S1 or S3 state.
PME# Wakeup Support
When the PME# signal on the PCI bus is asserted, the computer wakes from an ACPI S1, S3, or
S5 state.