Technical product specification

Intel Desktop Board D2550MUD2 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 8. 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

Boards with AA# G81497-700 or higher support ErP Lot 6, Tier 2 requirements through

the 2-pin header at position J30. ErP Lot 6, Tier 2 support will disable all wake events

in the S4 sleep state (hibernate) and the S5 sleep state except for the power button.

The system will only wake from the S4 sleep state or the S5 sleep state with the power

button. Removing the jumper from the header at position J30 will disable ErP Lot 6,

Tier 2 support and will re-enable wake events.

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.