Intel D845GVAD2 Product Guide - Page 17

Hardware Management, Power Connectors, Fan Connectors, Resume on Ring, Wake from USB

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Desktop Board Features CAUTION Power supplies used with this board must be able to provide enough standby current to support the standard Instantly Available (ACPI S3 sleep state) configuration. If the standby current necessary to support multiple wake events from the PCI and/or USB buses exceeds power supply capacity, the Intel desktop board may lose register settings stored in memory. For more information on standby current requirements for this desktop board, refer to the TPS by selecting the Technical Documentation link at: http://developer.intel.com/design/motherbd/ Hardware Management • Power connectors • Fan connectors • Resume on Ring • Wake from USB • Wake from PS/2 keyboard/mouse • PME# wake up support Power Connectors Desktop Board D845GVAD2 has two power connectors. See Figure 13 on page 62 for the location of the power connectors. Fan Connectors Desktop Board D845GVAD2 has two chassis fan connectors and one processor fan connector. See Figure 13 on page 62 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. ✏ NOTE Wake from USB requires the use of a USB peripheral that supports Wake from USB. 17

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Desktop Board Features
17
CAUTION
Power supplies used with this board must be able to provide enough standby current to support the
standard Instantly Available (ACPI S3 sleep state) configuration.
If the standby current necessary
to support multiple wake events from the PCI and/or USB buses exceeds power supply capacity,
the Intel desktop board may lose register settings stored in memory.
For more information on standby current requirements for this desktop board, refer to the TPS by
selecting the Technical Documentation link at:
Hardware Management
•
Power connectors
•
Fan connectors
•
Resume on Ring
•
Wake from USB
•
Wake from PS/2 keyboard/mouse
•
PME# wake up support
Power Connectors
Desktop Board D845GVAD2 has two power connectors.
See Figure 13 on page 62 for the location
of the power connectors.
Fan Connectors
Desktop Board D845GVAD2 has two chassis fan connectors and one processor fan connector.
See
Figure 13 on page 62 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.
✏
NOTE
Wake from USB requires the use of a USB peripheral that supports Wake from USB.