http://downloadmirror.intel.com/18357/eng/D510MO_ProductGuide01_English…
Ez alapján az USB-n kikapcsolt gép mellet nem ad 5V-ot.
De a PS2-s perifériák akkor is kapnak.
Wake from PS/2 Device
PS/2 keyboard activity wakes the computer from an ACPI S1, 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 key combination or the Power key
available only on some keyboards.
Akkor csak egy ps/2 tápelosztó kábel kell.