What OS were you running before Windows 8.1?
Somebody may be able to pinpoint that error, but I would just assume that it's a driver problem; and would install the latest drivers (beginning with the chipset) from the PC (0r motherboard) manufacturer's web site.
Somebody may be able to pinpoint that error, but I would just assume that it's a driver problem; and would install the latest drivers (beginning with the chipset) from the PC (0r motherboard) manufacturer's web site.