10-4 Solving System ProblemsNote When the NEC Versa detects an error related to display devices, it cannotdisplay on either the LCD or a CRT. The system warns you by beeping.Post Error MessagesThe NEC Versa LXi computer has a built-in checking program that automatically testsits components when you turn the system power on. This diagnostic test is called thePower-On Self-Test (POST). If the system finds a problem during the POST, thesystem displays an error message or emits a series of beep signals. If this happens,follow the instructions in the POST Error Messages table or the Beep Code table, asappropriate.If an error message appears before the operating system starts, look up the errormessage in the following table. Follow the instructions. If you see other error messages,the hardware might need repair.Post Error MessagesMessage ResolutionAddress line is short Error in the address decoding circuitry on the systemboard. Contact your service representative for service.C: Drive Error Hard disk drive C: does not respond. Confirm that C:hard disk type in Setup is correct.C:Drive Failure Hard disk drive C: does not respond. You may need toreplace the hard disk drive. Contact your servicerepresentative for service.Cache Memory Bad, DoNot Enable CacheCache memory is defective. It must be replaced.Contact your service representative for service.CH-2 Timer Error Most ISA computers include two timers. There is anerror in timer 2. Contact your service representative forservice.CMOS Battery State Low CMOS RAM is powered by a battery. The batterypower is low. Connect the system to AC power tocharge the CMOS battery. If the battery does notcharge, contact your service representative to replacethe CMOS battery.CMOS Checksum Failure After CMOS RAM values are saved, a checksum valueis generated for error checking. The previous value isdifferent from the current value. Run Setup to reset thevalue.