Systemax Computer, XP-Pro, Trend Net wireless network link. Internet service by ATT U-verse, 32Mbp
Background - and Initial problem:
Drop in down load speed, resulting often in time outs. Speed test recorded rates as Low as 1Mbp, Previous highs 11 to 13, average about 10Mbp. Tried cable ethernet connection, continued to get open cable error. Known good cable. There was a determination that the registry was corrupt via an unknown virus. Several attempts to clean system resulted in no improvement. Recommendation to reformat and load new system. Elected to installed new hard drive and reload XP-Pro from my original disk. Many hours doing updates, loading drivers and software. No significant improvement, and in fact appears to be degrading steadily.
A driver scan indicated several drivers outdated, and in one case missing. This is the problem I am seeking help on. The missing driver is SM Buss controller which is firmware in the chipset. The mother board is no longer in production. Board number-K9N6SGM-V MCP61 mATX
How do I find a source for the missing Buss Control driver. Could the fact that the Ethernet circuit does not work be caused by the Buss control driver?
I suspect this computer is not worth all the effort, but a lot of time and effort (money too) has been expended, so now it is a challenge.
all suggestions and help will be appreciated-