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| Error messages | 
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| Symptom or error | FRU or action, in sequence | |
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| Device address conflict. | 1. | Load Setup Defaults in | 
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 | IBM BIOS Setup Utility. | 
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 | 2. | Backup battery. | 
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 | 3. | System board. | 
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| Allocation error for device. | 1. | Load Setup Defaults in | 
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 | IBM BIOS Setup Utility. | 
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 | 2. | Backup battery. | 
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 | 3. | System board. | 
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| Failing bits: nnnn. | 1. | DIMM. | 
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 | 2. | System board. | 
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| Invalid system configuration | 1. | DIMM. | 
| data. | 2. | System board. | 
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| I/O device IRQ conflict. | 1. | Load Setup Defaults in | 
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 | IBM BIOS Setup Utility. | 
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 | 2. | Backup battery. | 
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 | 3. | System board. | 
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| Operating system not found. | 1. | Check that the operating | 
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 | system has no failure and | 
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 | is installed correctly. | 
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 | 2. | Enter IBM BIOS Setup | 
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 | Utility and see whether the | 
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 | diskette drive are properly | 
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 | identified. | 
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 | 3. | Reseat the  | 
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 | 4. | Reinstall the operating | 
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 | system. | 
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 | 5. | If the diskette drive is | 
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 | connected and the | 
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 | operating system is located | 
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 | on/in the drive, replace the | 
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 | diskette drive. | 
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 | 6. | |
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 | 7. | System board. | 
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| Hibernation error. | 1. | Restore the system | 
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 | configuration to what it | 
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 | was before the computer | 
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 | entered hibernation mode. | 
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 | 2. | If memory size has been | 
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 | changed,  | 
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 | hibernation file. | 
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| Fan error. | Fan. | |
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