K8N WinXP Other Devices

On a new-installed K8N, setup with a RAID-0 (nVidia drivers), using Windows
XP (Homie). After initial setup, went into Device Manager and found several
yellow question marks under Other Devices:

Mass Storage Controller
Other PCI Bridge Device
Universal Serial Bus (USB) Controller

I searched the K8N CD-ROM to now avail. What are these items, and where
would I find the drivers for them?

The system runs fine, but I like things neat and tidy, y'unnerstand.

Thanks!


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