Dell OptiPlex GL Service Manual - Page 37
System Error Messages, Incompatible Processors: Cache sizes different
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Table 3-1. POST Beep Codes (continued) Beep Code Error Probable Causes 4-3-3 Timer-chip counter 2 failure Defective system board 4-3-4 Time-of-day clock stopped Bad battery or defective system board 4-4-1 Serial/parallel port test failure Faulty I/O chip (defective system board) System Error Messages Table 3-2 lists (in alphabetical order) system error messages that can appear on the monitor screen. These messages can help you find the source of a problem. Some of these error messages indicate fatal errors. When a fatal error occurs, the system usually cannot be rebooted until an appropriate hardware change has been made. The following messages indicate a fatal error: • Bad error-correction code (ECC) on disk read • Controller has failed • Data error • Gate A20 failure • Hard disk controller failure • Hard disk drive read failure • Hard disk failure • Incompatible Processor: CPU0 is B0 step or below • Incompatible Processor: CPU1 is B0 step or below • Incompatible Processors: Cache sizes different • Keyboard clock line failure • Keyboard controller failure • Keyboard data line failure • Keyboard stuck key failure • No timer tick interrupt • Shutdown failure • Terminator/processor card not installed! System HALTED! • Timer chip counter 2 failed • Unexpected interrupt in protected mode Beep Codes and Error Messages 3-3