Re: USB won't recognize sophisticated devices.


"Gary Sams" <gary_sams@xxxxxxxxxxx> wrote in message
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"Ian D" <taurus@xxxxxxxxxxx> wrote in message
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"Gary Sams" <gary_sams@xxxxxxxxxxx> wrote in message
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Yes they do, and I have installed the latest drivers. As I say, they
work fine, including all bells and whistles, as long as I connect them
to the PS/2 ports, rather than the USB ports,

Gary



Even without drivers, they should be recognized as legacy devices
same as the 3 button mouse you say worked. If they work through
the PS/2 ports use them that way. I have USB keyboard and mouse
and have them connected via PS/2. I find the mouse to be a bit more
responsive, and it saves USB ports for other devices.

Back to your problem, it sounds like a motherboard issue. When you
plug the keyboard and mouse into USB ports, do they show any signs
of life, ie., operating LEDs? It almost looks as if your MB USB ports
can't supply sufficient power for the devices.


As for showing signs of life, its variable. The red optical light under
the mouse sometimes lights up and sometimes doesn't - either way it
doesn't work at all. Same with the keyboard, it sometimes shows the lights
which should come on, and sometimes doesn't. In fact on one occasion,
after a lot of unplugging and plugging, I got the keyboard recognized and
working. This produced another problem - windows refused to shut down.
When I tried to shut down it insisted on restarting. I had to disconnect
it to turn off the computer!

As you say, I now have no problems, due to using adapters to the PS/2
ports. I am just concerned that there is clearly a USB problem, which
could cause difficulties with other devices in the future. I also suspect
a power problem, which is why I upgraded the PSU.

I bought the motherboard from Maplin, and have queried the problem with
them. They have no idea what the problem could be. Do I really need the
hassle of trying to get the motherboard replaced, and then having to fit a
new one?

Gary


Here's another thought. Can you enter and navigate the BIOS after
bootup with that keyboard plugged into a USB port, and will the
mouse LEDs light at the same time? If not, it's definitely a motherboard
issue, and if they do work at POST, but not after XP starts, it looks like
a motherboard USB driver issue. Also, did you check in Device
Manager to see if the USB2 or Enhanced USB is enabled? I assume you
installed the motherboard drivers.

ID


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