Turning on USB device hangs system

>-----Original Message-----
>Hi,
>
>The USB hub only supply upto 500mA; if you connect more
>than 1 USB device into the same hub and the USB devices
>consume more than 500mA, problems will be happened.
>Also, if your power pack is less than 350watt, it may not
>be able to supply sufficient current on the 12V cables
>and in turn affected the current supply to the USB HUBs.
>
>
>I use MS wireless optical mouse, though I have plenty USB
>hubs in my OS (4 USB1.1 and 6 USB2.0) and I can use the
>USB connection for the mouse without any problem, I still
>follow MS suggestion to use the USB/PS2 adapter and it
>works fine.
>
>Peter
>

>>-----Original Message-----
>>Hi. I have a weird problem on a new system with Asus
>>P4P800 and Windows XP Pro SP1. I have a USB mouse and a
>>PS2 keyboard. The mouse works great in USB connection.
>>If I then turn on another device like my printer (and

>yet

>>another type of device connected via USB - no hub), the
>>system slows down, CPU goes to 100 % and locks up in

>about

>>45 s - 1 min.
>>
>>If I plug the USB mouse via an PS2 adapter in the PS2
>>mouse port, this above problem does not occur.
>>
>>What could be wrong? I wouldn't mind using the mouse in
>>USB port instead....
>>.
>>

>.
>

> No, I don't think it has anything to do with this. I have
> 430W (true) power supply and I have no HUB. Just the
> standard motherboard connections and I only have 2 USB
> devices (my optical mouse and that other device being my
> printer or digital camera).
>
> Again, I can use the PS2 adapter for the mouse and problem
> goes away but I still would like to know what is wrong and
> supposedly using the USB mouse is a bit better for fast 3D
> game play than the PS2 mouse.
>
> My previous XP system worked fine with the same
> drivers/combination....
>

>> -----Original Message-----
>> Hi,
>>
>> The USB hub only supply upto 500mA; if you connect more
>> than 1 USB device into the same hub and the USB devices
>> consume more than 500mA, problems will be happened.
>> Also, if your power pack is less than 350watt, it may not
>> be able to supply sufficient current on the 12V cables
>> and in turn affected the current supply to the USB HUBs.
>>
>>
>> I use MS wireless optical mouse, though I have plenty USB
>> hubs in my OS (4 USB1.1 and 6 USB2.0) and I can use the
>> USB connection for the mouse without any problem, I still
>> follow MS suggestion to use the USB/PS2 adapter and it
>> works fine.
>>
>> Peter
>>

>>> -----Original Message-----
>>> Hi. I have a weird problem on a new system with Asus
>>> P4P800 and Windows XP Pro SP1. I have a USB mouse and a
>>> PS2 keyboard. The mouse works great in USB connection.
>>> If I then turn on another device like my printer (and yet
>>> another type of device connected via USB - no hub), the
>>> system slows down, CPU goes to 100 % and locks up in about
>>> 45 s - 1 min.
>>>
>>> If I plug the USB mouse via an PS2 adapter in the PS2
>>> mouse port, this above problem does not occur.
>>>
>>> What could be wrong? I wouldn't mind using the mouse in
>>> USB port instead....
>>> .
>>>