Lenovo ThinkPad 770 Hardware Maintenance Manual for 770 series notebooks(Janua - Page 60

Bad Eeprom Crc #1, Symptom-to-fru Index

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SYMPTOM-TO-FRU INDEX Symptom / Error 17XX 1701: Hard disk controller failure. 1780, 1790: Hard disk 0 error. 1781, 1791: Hard disk 1 error. 183 (Incorrect password entered at the supervisor password prompt.) 184 (Power-on password check sum error.) 185 (The startup sequence is not valid. Suspect that power was off when the startup sequence was being updated.) 186 189 190 (A depleted battery pack was installed when the power was on.) 191XX (PM initialization error.) 195 (The configuration read from the hibernation area does not match the actual configuration.) 196 (A read error occurred in the hibernation area of the hard disk drive.) 199XX (Resume error.) 1XX 225 (Unsupported memory module.) 24XX FRU / Action in Sequence 1. Hard disk drive 2. System board Have the user examine the password. Reset the power-on password in Easy-Setup. Reset the startup sequence in Easy-Setup. 1. System Board (Bad EEPROM CRC #1 error) 1. System Board Go to "Checking the Battery Pack" on page 37. 1. System board Check if the configuration was changed. For example, check if the DIMM card is removed. 1. Run the hard disk drive test. 2. Hard disk drive 1. System board 1. System board 1. Check if a supported DIMM is installed. 2. DIMM card 3. System board 1. Video card 2. System board 54

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SYMPTOM-TO-FRU INDEX
Symptom / Error
FRU / Action in Sequence
17XX
1701: Hard disk
controller failure.
1780, 1790: Hard disk
0 error.
1781, 1791: Hard disk
1 error.
1.
Hard disk drive
2.
System board
183
(Incorrect password entered
at the supervisor password
prompt.)
Have the user examine
the password.
184
(Power-on password check
sum error.)
Reset the power-on
password in Easy-Setup.
185
(The startup sequence is
not valid.
Suspect that
power was off when the
startup sequence was being
updated.)
Reset the startup
sequence in Easy-Setup.
186
1.
System Board
189
(Bad EEPROM CRC #1
error)
1.
System Board
190
(A depleted battery pack
was installed when the
power was on.)
Go to “Checking the
Battery Pack” on page
37.
191XX
(PM initialization error.)
1.
System board
195
(The configuration read from
the hibernation area does
not match the actual
configuration.)
Check if the configuration
was changed.
For example, check if the
DIMM card is removed.
196
(A read error occurred in the
hibernation area of the hard
disk drive.)
1.
Run the hard disk
drive test.
2.
Hard disk drive
199XX
(Resume error.)
1.
System board
1XX
1.
System board
225
(Unsupported memory
module.)
1.
Check if a supported
DIMM is installed
.
2.
DIMM card
3.
System board
24XX
1.
Video card
2.
System board
54