In article <>,
news-50.giganews.com wrote:
> I already know now that the A8N-SLI Premium has a power LED that stays
> lit when the computer is off and it is normal but when I shut down the
> computer the Microsoft Intelli-mouse light stays lit, what gives and
> how do I rectify it?
>
> HST
>
> geezzz, one problem after the other
)
For many other motherboards, the answer to this question would be
simple. Usually an Asus motherboard has USBPWxx jumper blocks.
The xx would be 12, 34, 56, as appropriate for the pair of USB
ports it controls. USBPW jumper blocks allow the user to select
powering of the USB port by the +5V source of power (which switches
off when the computer sleeps) or by the +5VSB source of power (which
continues to run when the computer sleeps).
+5VSB is the one to use, when you need a USB keyboard powered, to
do "wake by keyboard" or the like.
Now, we come back to the A8N-SLI. Lo and behold, I see no USBPWxx
jumper blocks! It sounds like your USB headers and rear USB ports are
permanently wired to +5VSB, and that is why the mouse is still
lit. On the plus side, this makes the "wakeup" function easier
to get working (and Asus saves a whole $0.15, by not having to
place 15 jumper pins on the board for five USBPWxx header blocks).
I wonder if the selection of +5V or +5VSB is now made in software ?
I'd say you have a good deal of research ahead of you, to find an
answer to that :-(
Phone up Asus tech support and ask them if there is an option to
change how USB is powered. I don't see any mention of this issue
on the Asus FAQ page. If all ten of the USB ports have been
set up to run from +5VSB, and each one draws 500 milliamps (the
spec max), this will crush all power supplies (most PSUs only have
2 amps to offer on +5VSB), so if the USB powering option cannot be
changed, this strikes me as a dumb design decision.
http://support.asus.com.tw/faq/faq.aspx?SLanguage=en-us
Paul