why dose the usb port stay power up then i turn of the computer at the case.

Bekuz yer speling suks?

BTW, the button in front doesn't turn off your PC.

With ATX systems, as against the older AT system, the front
power button does not fully turn off power from the PSU.
For reasons that I won't go into, there's still a trickle of standby
power flowing into the motherboard. A part of that standby
power is fed to the USB ports.

On Wed, 16 Feb 2005 18:29:22 -0000, "lindon"
<lin***@heaven0.wanadoo.co.uk> wrote:

... because your motherboard has it's USB ports and/or USB
pin-headers jumpered to use 5VSB instead of 5V (see the
motherboard manual).

lindon wrote:
Because the logic for running the power switch (poke or hold) needs power.

One of the standardized features of ATX boards is remote control (power up).
Herefor some connections like USB or LAN cards have to remain powered.

AoA,
you can also see if your motherboard has some power flowwing in by
looking at your motherboard inside the casing. There is a little
light (LED) on even if your  computer is turned off and still pluged
on
Bye

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