Lenovo ThinkPad 770 Hardware Maintenance Manual for 770 series notebooks(Janua - Page 59

Installed Devices List on, PerformChecking - error 174

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SYMPTOM-TO-FRU INDEX Symptom / Error 110 (Planar parity.) 111 (I/O parity.) 11XX 1101: Serial_A test failure. 12XX 1201: Serial_B test failure. 158 (The hard disk password was not set even though the supervisor password is set.) 159 (The hard disk password is not set the same as the supervisor password.) 161 (Dead battery.) 163 (Time and date were not set.) 173 (Configuration data was lost.) 174 (Configuration error: Perform"Checking the Installed Devices List" on page 43 before changing any FRUs.) 175, 177, 178 175: EEPROM CRC #1 error. 177: Supervisor password check sum error. 178: EEPROM is not functional. FRU / Action in Sequence 1. Go to "Memory Checkout" on page 33. 2. DIMM card 3. Detach the expansion unit if it is attached to the computer. 4. System board 1. Go to "Memory Checkout" on page 33. 2. Expansion unit or port replicator 3. System board 1. Serial device 2. Communication cable 3. System board 1. System board (infrared) Set the password for the hard disk drive. Set the correct password for the hard disk drive. 1. Go to "Checking the Backup Battery" on page 38. 2. Backup battery 3. System board 1. Set time and date. 2. System board 1. Select OK in the error screen; then set the time and date. 2. Backup battery 3. System board 1. Check device configuration. 2. Hard disk drive assembly 3. System board 1. System board ThinkPad 770, 770E, 770X and 770Z 53

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SYMPTOM-TO-FRU INDEX
Symptom / Error
FRU / Action in Sequence
110
(Planar parity.)
1.
Go to “Memory
Checkout” on
page 33.
2.
DIMM card
3.
Detach the expansion
unit if it is attached to
the computer.
4.
System board
111
(I/O parity.)
1.
Go to “Memory
Checkout” on
page 33.
2.
Expansion unit or port
replicator
3.
System board
11XX
1101:
Serial_A test failure.
1.
Serial device
2.
Communication cable
3.
System board
12XX
1201:
Serial_B test failure.
1.
System board
(infrared)
158
(The hard disk password
was not set even though the
supervisor password is set.)
Set the password for the
hard disk drive.
159
(The hard disk password is
not set the same as the
supervisor password.)
Set the correct password
for the hard disk drive.
161
(Dead battery.)
1.
Go to “Checking the
Backup Battery” on
page 38.
2.
Backup battery
3.
System board
163
(Time and date were not
set.)
1.
Set time and date
.
2.
System board
173
(Configuration data was
lost.)
1.
Select OK in the error
screen; then set the
time and date.
2.
Backup battery
3.
System board
174
(Configuration error:
Perform“Checking the
Installed Devices List” on
page
43 before changing
any FRUs.)
1.
Check device
configuration.
2.
Hard disk drive
assembly
3.
System board
175, 177, 178
175: EEPROM CRC
#1 error.
177: Supervisor
password check sum
error.
178:
EEPROM is not
functional.
1.
System board
ThinkPad 770, 770E, 770X and 770Z
53