USB traffic causing mouse lag?

[RyanH]

I just recently purchased a 1TB WD My Book Essential Ed. Ext. Hd and have it hooked up to a USB 2.0 port on my PC. I also have a USB 2 Logitech G5 mouse and G15 keyboard as well as a USB 2 mic all hooked up to USB 2.0. ports. It feels like my mouse isn't as responsive as before I installed the HD, and I'm wondering if it could be because the mouse data transfers are getting slowed down by other USB transfers from the HD. I have the latest Logitech drivers installed and I increased the polling rate to 1000Hz and I have my Mobo updated with the latest chipset drivers and BIOs version too if that even matters. In the BIOS i have the USB host controller set to Hi Speed. I was transferring a bunch of media files over to my new HD and noticed the transfer rate was only about 25-30 MBps, Im wondering if all my USB devices are taking up too many resources, or if theres a way I can monitor USB traffic. Is there any way I can set my mouse to a higher priority as far as USB resources goes. The PC im using is in my sig and my Vista is fully updated.

 

[jeremyshaw]

Hi speed just means USB 2.0, instead of forced 1.1 only.

How about empirically? If they all run off of a hub (internally or externally), then it could definately slow it down.