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| Message/Symptom | FRU/Action |
|---|---|
| Changing colors. | 1. Display |
| Computer will not power-off. | 1. Power Switch |
| See 'Power Systems Checkout' | 2. System Board |
| 3. DC/DC card | |
| Dead computer. | 1. Power Switch |
| See 'Power Systems Checkout' | 2. Power Supply |
| 3. System Board | |
| Diskette drive in-use light | 1. Diskette Drive |
| remains on or does not light | 2. System Board |
| when drive is active. | 3. Diskette Drive Cable |
| Flashing cursor with an | 1. System Board |
| otherwise blank display. | 2. Primary Hard Disk Drive |
| 3. Hard Disk Drive Cable | |
| Incorrect memory size during POST. | 1. Run the Memory tests. |
| 2. Memory Module | |
| 3. System Board | |
| 'Insert a Diskette' icon | 1. Diskette Drive |
| appears with a known-good | 2. System Board |
| diagnostics diskette in | 3. Diskette Drive Cable |
| the first 3.5-inch diskette | 4. Network Adapter |
| drive. | |
| Intensity or color varies | 1. Display |
| from left to right of | 2. System Board |
| characters and color bars. | |
| No power, or fan not running. | 1. Check power supply |
| Nonsystem disk or disk | 1. Diskette Drive |
| error-type message | 2. System Board |
| with a known-good | 3. Diskette Drive Cable |
| diagnostic diskette. | |
| Other display symptoms not | 1. Check Display. |
| listed above | 2. System Board |
| (including blank or | 3. Display |
| illegible display). | |
| Power-on indicator or hard | 1. Power Supply |
| disk drive in-use light | 2. System Board |
| not on, but computer | 3. LED Cables |
| works correctly. | |
| Printer problems. | 1. Check printer |
| Program loads from the hard disk | 1. Run Setup |
| with a known-good diagnostics | 2. Diskette Drive |
| diskette in the first 3.5-inch | 3. Diskette Drive Cable |
| diskette drive. | 4. System Board |
| 5. Power Supply | |
| Serial or parallel port | 1. External Device Self-Test OK? |
| device failure | 2. External Device |
| (system board port). | 3. Cable |
| 4. System Board | |
| Serial or parallel port | 1. External Device Self-Test OK? |
| device failure | 2. External Device |
| (adapter port). | 3. Cable |
| 4. System Board | |
| Some or all keys on the | 1. Keyboard |
| keyboard do not work. | 2. Keyboard Cable |
| 3. System Board | |
| Clock Battery inaccurate. | 1. System Board |
Please see the LEGAL - Trademark notice.
Feel free - send a 
for any BUG on this page found - Thank you.