Intel D848PMB Technical Product Specification - Page 38

Hardware Support

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Intel Desktop Board D848PMB Technical Product Specification 1.12.2 Hardware Support CAUTION Ensure that the power supply provides adequate +5 V standby current if LAN wake capabilities and Instantly Available PC technology features are used. Failure to do so can damage the power supply. The total amount of standby current required depends on the wake devices supported and manufacturing options. The Desktop Board D848PMB provide several power management hardware features, including: • Power connector • Fan connectors • LAN wake capabilities • Instantly Available PC technology • Resume on Ring • Wake from USB • Wake from PS/2 keyboard • PME# signal wake-up support LAN wake capabilities and Instantly Available PC technology require power from the +5 V standby line. The sections discussing these features describe the incremental standby power requirements for each. Resume on Ring enables telephony devices to access the computer when it is in a power-managed state. The method used depends on the type of telephony device (external or internal). ✏ NOTE The use of Resume on Ring and Wake from USB technologies from an ACPI state requires an operating system that provides full ACPI support. 1.12.2.1 Power Connector ATX12V-, SFX12V-, and TFX12V-compliant power supplies can turn off the system power through system control. When an ACPI-enabled system receives the correct command, the power supply removes all non-standby voltages. When resuming from an AC power failure, the computer returns to the power state it was in before power was interrupted (on or off). The computer's response can be set using the Last Power State feature in the BIOS Setup program's Boot menu. For information about The location of the power connector The signal names of the power connector The BIOS Setup program's Boot menu The ATX12V, SFX12V, and TFX12V specifications Refer to Figure 11, page 53 Table 26, page 56 Table 67, page 108 Section 1.4, page 17 38

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Intel Desktop Board D848PMB Technical Product Specification
38
1.12.2
Hardware Support
CAUTION
Ensure that the power supply provides adequate +5 V standby current if LAN wake capabilities
and Instantly Available PC technology features are used.
Failure to do so can damage the power
supply.
The total amount of standby current required depends on the wake devices supported and
manufacturing options.
The Desktop Board D848PMB provide several power management hardware features, including:
•
Power connector
•
Fan connectors
•
LAN wake capabilities
•
Instantly Available PC technology
•
Resume on Ring
•
Wake from USB
•
Wake from PS/2 keyboard
•
PME# signal wake-up support
LAN wake capabilities and Instantly Available PC technology require power from the +5 V
standby line.
The sections discussing these features describe the incremental standby power
requirements for each.
Resume on Ring enables telephony devices to access the computer when it is in a power-managed
state.
The method used depends on the type of telephony device (external or internal).
✏
NOTE
The use of Resume on Ring and Wake from USB technologies from an ACPI state requires an
operating system that provides full ACPI support.
1.12.2.1
Power Connector
ATX12V-, SFX12V-, and TFX12V-compliant power supplies can turn off the system power
through system control.
When an ACPI-enabled system receives the correct command, the power
supply removes all non-standby voltages.
When resuming from an AC power failure, the computer returns to the power state it was in before
power was interrupted (on or off).
The computer
’
s response can be set using the Last Power State
feature in the BIOS Setup program
’
s Boot menu.
For information about
Refer to
The location of the power connector
Figure 11, page 53
The signal names of the power connector
Table 26, page 56
The BIOS Setup program
’
s Boot menu
Table 67, page 108
The ATX12V, SFX12V, and TFX12V specifications
Section 1.4, page 17