Symptom-To-Fru Index; Numeric Error Codes - Lenovo E470 Hardware Maintenance Manual

If you have defined one of the following actions as the event that causes the system to go into hibernation
mode, perform that action.
• Closing the lid.
• Pressing the power button.
Also, the computer goes into hibernation mode automatically after a period of inactivity specified in power
plan settings.
When the power is turned on, the computer returns from hibernation mode and resumes operation. The
hibernation file in the boot record on the hard disk drive, hybrid drive, or solid-state drive is read, and system
status is restored from the hard disk drive, hybrid drive, or solid-state drive.

Symptom-to-FRU index

This section contains following information:
• "Numeric error codes" on page 39
• "Error messages" on page 41
• "Beep symptoms" on page 41
• "No-beep symptoms" on page 41
• "LCD-related symptoms" on page 42
• "Intermittent problems" on page 42
• "Undetermined problems" on page 42
The symptom-to-FRU index in this section lists symptoms and errors and their possible causes. The most
likely cause is listed first, in boldface type.
Note: Do the FRU replacement or other actions in the sequence shown in the column headed "FRU or
action, in sequence." If replacing a FRU does not solve the problem, put the original part back in the
computer. Do not replace a nondefective FRU.
This index can also help you determine, during regular servicing, what FRUs are likely to need to be replaced
next.
A numeric error is displayed for each error detected in POST or system operation. In the displays, n can be
any number.
If no numeric code is displayed, check the narrative descriptions of symptoms. If the symptom is not
described there, go to "Intermittent problems" on page 42.
Note: For a device not supported by diagnostic codes in the ThinkPad notebook computers, see the manual
for that device.

Numeric error codes

Table 2. Numeric error codes
Symptom or error
0177
Bad SVP data, stop POST task— Checksum of the
supervisor password in the EEPROM is not correct.
0183
Bad CRC of Security Settings in EFI Variable. Enter the
ThinkPad Setup program. – The checksum of the Security
settings in the EFI Variable is not correct.
FRU or action, in sequence
Replace the system board.
1. Run the ThinkPad Setup program. The settings
will be corrected automatically. Then save the
current settings by pressing F10.
2. Replace the system board.
Chapter 4
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Related service information
39