Lenovo ThinkPad X220 4287 Hardware Maintenance Manual page 50

Table 2. Numeric error codes (continued)
Symptom or error
0199
System Security— Security password retry count
exceeded.
01C8
Two or more modem devices are found. Remove all but
one of them. Press <Esc> to continue.
01C9
Two or more Ethernet devices are found. Remove all but
one of them. Press <Esc> to continue.
01C9
More than one Ethernet devices are found. Remove one
of them. Press <Esc> to continue.
01CA
More than one Wireless LAN devices are found. Remove
one of them.
0200
Hard disk error—The hard disk is not working.
021x
Keyboard error.
0220
Monitor type error—Monitor type does not match the one
specified in CMOS.
0230
Shadow RAM error—Shadow RAM fails at offset nnnn.
0231
System RAM error—System RAM fails at offset nnnn.
0232
Extended RAM error— Extended RAM fails at offset nnnn.
0250
System battery error—System battery is dead.
0251
System CMOS checksum bad— Default configuration
used.
0252
Password checksum bad—The password is cleared.
0260
System timer error.
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ThinkPad X220 and X220i Hardware Maintenance Manual
FRU or action, in sequence
1. Run BIOS Setup Utility, and then save the current
setting by pressing F10.
2. System board.
1. Remove either a Mini-PCI Card or a modem
daughter card. Otherwise, press Esc to ignore
the warning message.
2. System board.
1. Remove either a Mini PCI Ethernet card or an
Ethernet daughter card. Otherwise, press Esc to
ignore the warning message.
2. System board.
1. Remove the Ethernet device that you installed; or
press Esc to ignore the warning message.
2. System board.
1. Remove the wireless LAN device that you
installed.
2. System board.
1. Reseat the hard disk drive.
2. Load Setup Defaults in BIOS Setup Utility.
3. Hard disk drive.
4. System board.
Run interactive tests of the keyboard and the auxiliary
input device.
Load Setup Defaults in BIOS Setup Utility.
System board.
1. DIMM.
2. System board.
1. DIMM.
2. System board.
1. Charge the backup battery for more than 8 hours
by connecting the ac power adapter.
2. Replace the backup battery and run BIOS Setup
Utility to reset the time and date.
1. Charge the backup battery for more than 8 hours
by connecting the ac power adapter.
2. Replace the backup battery and run BIOS Setup
Utility to reset the time and date.
Reset the password by running BIOS Setup Utility.
1. Charge the backup battery for more than 8 hours
by connecting the ac power adapter.
2. Replace the backup battery and run BIOS Setup
Utility to reset the time and date.
3. System board.