Lenovo THINKPAD E40 Hardware Maintenance Manual

Also see for 01994JU: Brochure

Contents

Table 2. Numeric error codes (continued)Symptom or error (beeps, if any) FRU or action, in sequence0211Keyboard error(two short beeps)Run interactive tests of the keyboard andthe auxiliary input device.0230Shadow RAM error—Shadow RAM fails atoffset nnnn.(two short beeps)System board.0231System RAM error—System RAM fails atoffset nnnn.(two short beeps)1. DIMM.2. System board.0232Extended RAM error— Extended RAM failsat offset nnnn.(two short beeps)1. DIMM.2. System board.0250System battery error—System battery isdead.(two short beeps)1. Charge the backup battery for morethan 8 hours by connecting the acadapter.2. Replace the backup battery and run BIOSSetup Utility to reset the time and date.0251System CMOS checksum bad— Defaultconfiguration used.(two short beeps)1. Charge the backup battery for morethan 8 hours by connecting the acadapter.2. Replace the backup battery and run BIOSSetup Utility to reset the time and date.0254System NV7 Volume checksum bad- Defaultconfiguration used(two short beeps)Turn off the computer and dischargeCMOS. Then restart the computer.0260System timer error.(two short beeps)1. Charge the backup battery for morethan 8 hours by connecting the acadapter.2. Replace the backup battery and run BIOSSetup Utility to reset the time and date.3. System board.0270Real-time clock error.(two short beeps)1. Charge the backup battery for morethan 8 hours by connecting the acadapter.2. Replace the backup battery and run BIOSSetup Utility to reset the time and date.3. System board.0271Date and time error—Neither the date northe time is set in the computer.(two short beeps)Run BIOS Setup Utility to reset the timeand date.0280Previous boot incomplete— Defaultconfiguration used.(two short beeps)1. Load “Setup Default” in BIOS SetupUtility.2. DIMM.3. System board.02D0System cache error.(two short beeps)1. CPU.2. System board.64 ThinkPad Edge 14″, Edge 15″, E40, and E50 Hardware Maintenance Manual