This is from their site:
ASRock Online Management Guard (OMG)
Fast, Easy and Free – ASRock OMG technology allows you to establish an internet curfew or restrict internet access at specified times. Administrators are able to schedule the starting and ending hours of internet access granted to other users. Normally, ISPs (Internet Service Provider) will charge for internet curfew service, which controls "all" the PCs connected at home. However, ASRock OMG is a free tool for controlling internet access of each single PC. Parents can easily control internet access through the BIOS setup to protect their kids from using the Internet at inappropriate times, and meanwhile, enjoy their own internet space.