| Error code | Symptom or error | Field replaceable unit or action, in sequence |
| 0175 | Bad CRC1, stop POST task. The EEPROM checksum is not correct. | System board |
| 0176 | System Security. The system has been tampered with. | 1.Run BIOS Setup Utility, and then save current setting by pressing F10. 2.System board. |
| 0177 | Bad SVP data, stop POST task. | System board. |
| 0182 | Bad CRC2. Enter BIOS Setup and load Setup Defaults. | Run the BIOS Setup Utility and Load Setup Defaults. |
| 0185 | Bad startup sequence settings. Enter BIOS Setup and load setup defaults. | Run the BIOS Setup Utility and Load Setup Defaults |
| 0187 | EAIA data access error. The access to EEPROM has failed. | System board |
| 0188 | Invalid RFID serialization information area or bad CRC2. The EEPROM checksum is not correct. | System board |
| 0189 | Invalid RFID configuration information area. The EEPROM checksum is not correct. | System board |
| 0190 | Critical low battery error. | 1.Charge the battery pack 2.Battery pack |
| 0191 | System Security. Invalid Remote Change requested. | 1.Run BIOS Setup Utility, and then save current setting by pressing F10. 2.System board. |
| 0192 | System Security. Embedded Security hardware tamper detected. | System board. |
| 0195 | Security hardware tamper detected | 1.Enter BIOS Setup Utility by entering supervisor password, and select Config, select Security Chip, then select Clear Security Chip to clear this error. 2.Security chip. 3.System board |
| 0196 | Security hardware removed | 1.Enter BIOS Setup Utility by entering supervisor password, and select Config, select Security Chip, then select Clear Security Chip to clear this error. 2. Security chip. 3.System board |
| 0197 | Invalid Remote change requested. | The remote configuration for the security chip has failed. Confirm the operation and try again. |
| 0199 | System Security. Security password retry count exceeded. | 1.Run BIOS Setup Utility, and then save current setting by pressing F10. 2. System board. |
| 01C8 | More than one modem devices are found. Remove one of them. Press ESC to continue. | 1.Remove either a Mini PCI modem card or an modem daughter card; or press Esc to ignore the warning message. 2.System board. |
| 01C9 | More than one Ethernet devices are found. Remove one of them and press the Esc key to continue. | 1.Remove either a Mini PCI Ethernet card or an Ethernet daughter card, other wise press the Esc key to ignore the warning message. 2. System board |
| 0200 | Hard disk drive error. The hard disk is not working. | 1.Remove and reinstall the hard disk drive. 2.Load Setup Defaults in BIOS Setup Utility. 3.Hard disk drive. 4.System board |
| 021x | Keyboard error | Run an interactive tests of the keyboard and the auxiliary input device. |
| 0220 | Monitor type error. Monitor type does not match the one specified in CMOS. | Load Setup Defaults in BIOS Setup Utility. |
| 0230 | Shadow RAM error. The shadow RAM failure at offset nnnn. | System board. |
| 0231 | System RAM error. System RAM failure at offset nnnn. | 1.DIMM. 2. System board. |
| 0232 | Extended RAM error. Extended RAM failure at offset nnnn. | 1.DIMM. 2. System board |
| 0250 | System battery error. System battery is dead | Replace the backup battery and run BIOS Setup Utility to reset the time and date. |
| 0251 | System CMOS checksum bad. Default configuration used | Replace the backup battery and run BIOS Setup Utility to reset the time and date. |
| 0252 | Password checksum bad. The password is cleared. | Reset the password by running BIOS Setup Utility. |
| 0260 | System timer error | 1.Replace the backup battery, and run BIOS Setup Utility to reset the time and date. 2.System board. |
| 0270 | Real time clock error | 1.Replace the backup battery, and run BIOS Setup Utility to reset the time and date. 2.System board |
| 0271 | Date and time error. Neither the date nor the time is set in the computer. | Run BIOS Setup Utility to reset the time and date. |
| 0280 | Previous boot incomplete. Default configuration used | 1.Load Setup Defaults in BIOS Setup Utility. 2. DIMM. 3.System board |
| 02B2 | Incorrect drive A type. | 1.Diskette drive.2.External FDD cable.3. I/O card |
| 02D0 | System cache error | 1.CPU |
| 02F4 | EISA CMOS not writable. | 1.Load Setup Defaults in BIOS Setup Utility. 2. Replace the backup battery. 3. System board |
| 02F5 | DIMM test failure | 1.DIMM. 2. System board |
| 02F6 | Software NMI failure | 1..DIMM. 2. System board |
| 02F7 | Fail-safe timer NMI failure | 1..DIMM. 2. System board |
| 1801 | Attached docking station is not supported | Shut down the computer and remove it from the docking station. |
| 1802 | Unauthorized network card is plugged in. Power off and remove the Mini PCI network card. | 1.Remove Mini PCI network card. 2.Remove Mini PCI network card. 2. |
| 1803 | Unauthorized daughter card is plugged in. Power off and remove the daughter card. | 1.Remove the daughter card that you installed. 2. System board. |
| 1804 | Unauthorized WAN card is plugged in. Power off and remove the WAN card. | 1.Remove the WAN card that you installed. 2. System board |
| 1810 | Hard disk partition layout error | 1.If the Access IBM Predesktop Area has been previously disabled, then go the the BIOS Setup Utility by pressing F1 to open the BIOS Setup Utility. Select Security, select Predesktop Area, and then select Access IBM Predesktop Area. Set this item to Disabled. Save and exit. 2.If the Access IBM Predesktop Area has not been previously disabled, press Enter to load Access IBM Predesktop Area. Then run RECOVER TO FACTORY CONTENTS in Access IBM Predesktop Area. 3. If item 2 failed, press F3 in welcome screen in RECOVER TO FACTORY CONTENTS. Run FDISK, and then delete all partitions. Run RECOVER TO FACTORY CONTENTS in Access IBM Predesktop Area again. 4. If item 3 failed, select CD-ROM boot in Startup in Access IBM Predesktop Area. Boot from Recovery CD and perform full recovery from it. 5. If item 4 failed, replace the hard disk drive |
| 1820 | More than one external fingerprint reader is attached. Power off and remove all but the reader that you set up within your main operating system. | Remove all but the reader that you set up for the authentication. |
| 2000 | Hard Drive Active Protection sensor diagnostics failed.Press ESC to continue.Press F1 to enter SETUP | 1.Undock docking station or port replicator if it is attached to the ThinkPad computer, and place the computer on a horizontal surface. Do not apply any physical shock to the computer. 2.Run Diagnostics, select Other Devices then select Hard Drive Active Protection Test. |
| 2010 | Warning: Your internal hard disk drive (HDD) may not function correctly on this system. Ensure that your HDD is supported on this system and that the latest HDD firmware is installed. | If in the primary bay the customer is using a non-IBM or non-Lenovo hard drive, or an old generation IBM hard drive which is not supported by this system, with the risk in mind, the customer can still use it by pressing ESC.If in the primary drive bay the customer is using a supported IBM or Lenovo hard drive with an old firmware, then update its firmware to the latest. |
| 2100 | Initialization error on HDD0 (Main hard disk drive) | 1.Reseat the hard disk drive. 2.Main hard disk drive. 3. System board |
| 2102 | Initialization error on HDD1 (Ultrabay hard disk drive) | 1..Reseat the hard disk drive. 2.Main hard disk drive. 3. System board |
| 2110 | Read error on HDD0 (Main hard disk drive) | 1..Reseat the hard disk drive. 2.Main hard disk drive. 3.System board |
| 2112 | Read error on HDD1 (Ultrabay hard disk drive) | 1..Reseat the hard disk drive. 2.Main hard disk drive. 3. System board |
