Other Devices - Yellow Question Marks

Having fixed the modem issue, I still have 4 issues in the Device Manager:
Ethernet Controller
Multimedia Video Controller
SM Bus Controller
Unknown Device
I know through CPU-Z that the chipset of my PC is Intel 945P Rev. A1.
Using this website http://www.intel.com/support/chipsets/sb/CS-020683.htm , there is an Intel 945P Express Chipset.
Clicked Download, Selected Windows XP Home Edition, and directed to:
http://downloadcenter.intel.com/Filter_ ... ll&Produ...
Nothing mentioned about the 945P. There is mention of Pentium 3 900 series in the archives:
http://downloadcenter.intel.com/Filter_ ... ll&Produ...
Now what?
Ethernet Controller
Multimedia Video Controller
SM Bus Controller
Unknown Device
I know through CPU-Z that the chipset of my PC is Intel 945P Rev. A1.
Using this website http://www.intel.com/support/chipsets/sb/CS-020683.htm , there is an Intel 945P Express Chipset.
Clicked Download, Selected Windows XP Home Edition, and directed to:
http://downloadcenter.intel.com/Filter_ ... ll&Produ...
Nothing mentioned about the 945P. There is mention of Pentium 3 900 series in the archives:
http://downloadcenter.intel.com/Filter_ ... ll&Produ...
Now what?