USB devices

[Hobo]

Is there a limit to the number of USB devices a computer
can support? If the computer doesn't recognize all the
USB ports, can this be corrected?

I am running a P4 1.6Ghz PC with an Asus m/b, with 4 USB
ports. I appear to have access to only 2 USB ports at a
time.

I have alogitech camera hooked up on one port, and a USB
memory stick on another. This weekend I added a logitech
cordless mouse to the 3rd port, but the memory stick was
unplugged.

This morning, when I plugged in the stick, my computer
rebooted and kept rebooting, until I unplugged the memory
stick, then it booted up normally.

When I check hardware devices, I can only "see" 2 USB
ports even though there are actually 4 on the PC.

Is it pssible to reconfigure the system, so that all four
are recognized?

Anyone?

 

[Jerry]

The limit on USB devices is 126

 

[Cari \(MS-MVP\)]

Each Root Hub usually controls two USB ports.

 

[Guest]

thank you. I was able to figure that out this morning
(about the 2/root hub), however, as soon as I plug in the
memory stick, into a USB port that worked fine (before I
added the cordless mouse), my system reboots repeatedly.

Next, I'm going to try and move the 3 devices around
between the 4 ports and see if any other combination will
work.

Thanks for your input.