After installation of windows server 2008 sp2 to a intel-S3000AH motherboard based server , two "?" display in the Device Manager window. PCI serial prot / XXXX ( forget it ).
Then follow the link :
According to the guide I tried such download from S3000AH-related miscellaneous downloading page :
Driver / Intel® On Board Network Driver for Windows
Download , unzip , running "Auto Update" against the wield device , everything is OK.