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have you tried installing the AMT driver?
if you have already personally i would suggest doing a freshinstall of the OS and installing the drivers from here:http://downloadcenter.intel.com/SearchResult.aspx?lang=eng&ProductFamily=Desktop+Boards&ProductLine=Intel%C2%AE+5+Series+Chipset+Boards&ProductProduct=Intel%C2%AE+Desktop+Board+DQ57TM
Be sure to install them in this order chipset; AMT ; audio ; video ; lan.
installing the AMT driver did take care of the two (2) not recognized devices. sorry it took so long for me to get back to you, but the commute and hours i work precluded any time before today.
thanks for your prompt courteous and correct answers.
thanks again for your help! it was correct.