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. A critical low battery condition occurs. . The PS2 HIBernation command is set in the ThinkPad Features program. ThinkPad 760 (9546, 9547) 357 The following event causes the computer to exit hibernation mode: . The power-on switch is turned on. When power is turned on, the hibernation history in the boot record on the hard disk is recognized and system status is restored from the hard disk to resume operation. Port Replicator Power Overload: If power shutdowns occur intermittently when using PCMCIA-2 devices via a port replicator, suspect a current overload. Some PCMCIA devices use much power; if the maximum usage of each device occurs simultaneously, the total current will exceed the limit, thereby causing a power shutdown. Isolate this problem by removing one of the devices, and use the computer under the same condition to see whether a power shutdown occurs. Do this procedure for all devices; then determine the cause. 358 IBM Mobile Systems - ThinkPad HMM Volume 3 Symptom-to-FRU Index The Symptom-to-FRU Index lists the symptoms and errors and the possible causes. The most likely cause is listed first. Note: Perform the FRU replacement or actions in the sequence shown in the “FRU/Action in Sequence” column. If a FRU did not solve the problem, put the original part back in the computer. Do not replace a nondefective FRU. This index can also be used to help you decide which FRUs to have available when servicing a computer. Numeric error codes show the errors detected in POST or system operation. In the following error codes, X can be any number. If no codes are available, use narrative symptoms. If the symptom is not listed, go to “Undetermined Problems” on page 371. Note: For IBM devices not supported by diagnostic codes in the ThinkPad notebook computers, see the manual for that device. Numeric Error Codes Symptom / Error FRU / Action in Sequence 10X . 101: Interrupt failure. . 102: Timer failure. . 103: Timer interrupt failure. . 104: Protected mode failure. . 105: Last 8042 command not accepted. . 107: NMI test failure. . 108: Timer bus test failure. . 109: Low meg-chip select test. 1. System board 110 (System board parity.) 1. Go to “Memory Checkout” on page 342. 2. DIMM Adapter Card and DIMM 3. The computer is attached to the expansion unit. 4. System board ThinkPad 760 (9546, 9547) 359 Symptom / Error FRU / Action in Sequence 111 (I/O parity.) 1. Go to “Memory Checkout” on page 342. 2. Expansion Unit/Port Replicator 3. System board 158 (HDP was not set even though the supervisor password is set.) 1. Set HDPs for both hard disk drives in the HDD bay and the UltraBay. 159 (HDP is not set the same as the supervisor password.) 1. Set correct HDPs for both hard disk drives in the HDD bay and the UltraBay. 161 (Dead battery.) 1. Go to “Checking the Backup Battery” on page 353. 2. Backup battery 3. System board 163 (Time and date were not set.) 1. Reseat the keyboard connector on the video card. 2. Set time and date. 3. System board 173 (Configuration data was lost.) 1. Reseat the keyboard connector on the video card. 2. Select OK in the error screen; then set the time and date. 3. Backup battery 4. System board 174 (Configuration error: Perform“Checking the Installed Devices List” on page 374 before changing any FRUs.) 1. Check device configuration. 2. System board 3. Diskette drive assembly 4. Hard disk drive assembly 175, 177, 178 . 175: EEPROM CRC #1 error. . 177: Supervisor password check sum error. . 178: EEPROM is not functional. 1. System board 183 (Incorrect password entered at the supervisor password prompt.) 1. Have the user examine the password. 184 (POP check sum error.) 1. Reset the POP (power-on password) in Easy-Setup. 360 IBM Mobile Systems - ThinkPad HMM Volume 3 Symptom / Error FRU / Action in Sequence 185 (The startup sequence is not valid. Suspect that power was off when the startup sequence was being updated.) 1. Reset the startup sequence in Easy-Setup. 186 1. System board 188 (EEPROM CRC #2 error.) 1. Set the system identification using the ThinkPad Hardware Maintenance Diskette Version 1.20. 190 (Depleted battery pack was installed when the power was on.) 1. Go to “Checking the Battery Pack” on page 351. 191XX (PM initialization error.) 1. System board 2. CPU card 195 (The configuration read from the hibernation area does not match the actual configuration.) 1. Check if the configuration was changed. For example, check if the disk drive is from another computer. 196 (Read error occurred in the hibernation area of the HDD.) 1. Run the hard disk drive test. 2. Hard disk drive 1XX 1. System board 2XX . 201: Memory data error. . 202: Memory line error 00–15. . 203: Memory line error 16–23. . 205: Memory test failure on on-board memory. . 221: ROM to RAM remap error. 1. Go to “Memory Checkout” on page 342. 2. DIMM, or DIMM Adapter 3. System board 301, 303, 304, 305, 3XX 1. Go to “Keyboard and (301: Keyboard error.) Auxiliary Input Device Checkout” on page 345. 2. Keyboard 3. Video card ...

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