AST RESEARCH TECHNICAL BULLETIN TB-0291 8/11/87 Premium 286/Clock For clarification, listed below is the acceptance specification for the clocks in the Premium 286 product line: 1. Resident clock + or - 2 minutes per month 2. DOS clock + or - 3 minutes per month Resident Clock: Stored in CMOS memory and maintained by battery backup. DOS Clock: When the system is booted, DOS reads the "resident clock" once and transfers the information into the operating system. At that point, system "time" is maintained by DOS. If the clocks do not fall within these specifications, contact customer support for further instructions.