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| Symptom/Error | FRU/Action |
|---|---|
| Power-on password is not | 1. Check the power-on password |
| reactivated. | switch position. |
| Problem occurs only when port | 1. Port Replicator |
| replicator installed. | |
| No beep and a blank or unreadable | 1. See 'Power Systems Checkout' |
| display during POST. | before replacing any FRUs. |
| 2. Processor Card | |
| 3. System Board | |
| 4. Video Card | |
| 5. Hard Disk Drive | |
| 6. Base Memory Card | |
| 7. Any option or device | |
| 8. Power source in use when failure occurs | |
| 9. Voltage Converter | |
| 10 Speaker | |
| No beep with a blinking cursor. | 1. System Board |
| 2. Processor Card | |
| 3. Any Option or Device | |
| No beep with a normal | 1. Speaker |
| display during POST. | 2. System Board |
| 3. Keyboard Control Card | |
| 4. Voltage Converter | |
| No beep and the system hangs with | 1. System Board |
| CP XX at the right-bottom | 2. Processor Card |
| corner of the screen. | |
| No beep and the system hangs | 1. System Board |
| after displaying the memory count. | 2. Processor Card |
| 3. Hard Disk Drive | |
| 4. Coprocessor | |
| No boot with blank screen. | 1. System Board |
| Extra horizontal or vertical | 1. LCD |
| lines displayed on upper | 2. Video Card |
| or lower half of the LCD. | 3. System Board |
| LCD screen unreadable | 1. See important note for |
| or characters missing pels. | 'LCD FRU Replacement Notice' |
| 2. LCD Assembly | |
| 3. System Board | |
| LCD too dark, unable to | 1. LCD |
| adjust contrast or brightness. | 2. Video Card |
| LCD slightly dims when | 1. Normal operation |
| changing to battery power. | (Dimming of LCD conserves battery power.) |
| LCD unreadable, illegible, | 1. LCD |
| or distorted. | 2. Video Card |
| 3. System Board | |
| LCD cannot be powered-on or off. | 1. Video Card |
| 2. System Board | |
| Voltage Converter | |
| Blank screen, or extra | 1. LCD |
| horizontal or vertical lines | 2. Video Card |
| displayed on upper or lower | 3. System Board |
| half of the LCD with no | |
| beep or one short beep. | |
| System status indicator is | 1. System Board |
| incorrectly blinking or stays on. | 2. Related Device |
| 3. Indicator Assembly | |
| System status indicator stays | 1. System Board |
| off, but the POST ends without | 2. Related Device |
| an error. | 3. Indicator Assembly |
| No keys on the keyboard work. | 1. Keyboard Control Card |
| See '1080 Keyboard Unit' | 2. Keyboard |
| 3. External Keyboard or Numeric | |
| Keypad (if attached) | |
| 4. System Board | |
| Keypad problems. | 1. Reseat cable |
| 2. External Keypad | |
| 3. Keyboard Control Card | |
| 4. System Board | |
| One or more keys do not work. | 1. See '1080 Keyboard Unit' |
| before replacing any FRUs. | |
| 2. Keyboard | |
| 3. External Keyboard or Numeric | |
| Keypad (if attached) | |
| 4. Keyboard Control Card | |
| Mouse and Pointing Stick problems. | 1. See '1080 Keyboard Unit' |
| before replacing any FRUs. | |
| 2. Disable Trackpoint and test Mouse | |
| The Trackpoint | |
| can interfere with the operation | |
| of some Mouse devices. | |
| 3. Mouse | |
| 4. Keyboard Control Card | |
| 5. Keyboard | |
| Cursor floats or moves erratically. | 1. See 'TrackPoint II Checkout' |
| before replacing any FRUs. | |
| 2. Mouse | |
| 3. Keyboard | |
| External display problems. | 1. See 'External Display Self-Test' |
| before replacing any FRUs. | |
| 2. External Display | |
| 3. Video Card | |
| 4. System Board | |
| Incorrect memory size during POST. | 1. See 'Memory Checkout' |
| before replacing any FRUs. | |
| 2. Base Memory Card | |
| 3. IC DRAM Card | |
| System hang or Intermittent hang. | 1. See 'Undetermined Problems' |
| before replacing any FRUs. | |
| 2. System Board | |
| 3. Hard Disk Drive | |
| 4. Replace the last device being tested | |
| 5. Voltage Converter | |
| The system goes into suspend | 1. System Board |
| mode after the POST. | 2. Voltage Converter |
| 3. Keyboard Control Card | |
| The system does not | 1. Check the Suspend/Resume switch operation. |
| suspend or resume. | If broken, replace the Voltage Converter. |
| 2. System Board | |
| 3. Voltage Converter | |
| 4. Keyboard Control Card | |
| 5. Keyboard | |
| The computer does not power-off. | 1. Voltage Converter |
| 2. System Board | |
| Real-time clock inaccurate. | 1. See 'Checking the Backup Battery' |
| before replacing any FRUs. | |
| 2. Backup Battery | |
| 3. System Board | |
| Printer problems. | 1. See 'Printer Checkout' |
| Serial or serial port device problems. | 1. Device |
| 2. Cable | |
| 3. Serial Adapter (if attached) | |
| 4. System Board | |
| Parallel or parallel port device problem | 1. Device/printer |
| 2. Cable | |
| 3. Parallel Adapter (if attached) | |
| 4. System Board | |
| Internal Data/Fax modem does not | 1. See 'Fax/Modem Checkout' |
| communicate with a remote modem or | |
| a facsimile machine. | |
| PS2 command cannot power-off | 1. Create new PS2 setup program |
| internal modem unless computer is | using UINSTALL command. |
| powered-off. | (Reference Diskette must be 1.10 or later.) |
Please see the LEGAL - Trademark notice.
Feel free - send a 
for any BUG on this page found - Thank you.