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| Symptom/Error: | FRU/Action. |
|---|---|
| Drive letters changed unexpectedly | 1. This is a normal condition. |
| after installing OS/2 or a SCSI adapter. | Use the configuration program |
| to change the drive letters back | |
| to the desired settings. | |
| Intermittent failures. | 1. Power Supply |
| (See Undetermined Problems before | 2. Power Supply Fans |
| replacing FRUs) | 3. Any Device or Adapter |
| Diskette drive LED stays on. | 1. Diskette Drive |
| Hard Disk LED stays on. | 1. Hard Disk Drive |
| 2. System Board | |
| Hard Disk LED not working, but | 1. Control/Speaker Assembly |
| computer is completely functional. | 2. System Board |
| Reference Diskette does not start. | 1. Diskette Drive |
| 2. System Board | |
| 3. Diskette Drive Cable | |
| 4. Reference Diskette | |
| Read / write errors on a 2.88MB diskette | 1. Use View Configuration to |
| drive. (If the drive was just installed, | determine if the diskette drive |
| either the computer has down level IML | is listed as a 2.88MB. If not, |
| code loaded or that model does not support | the latest level Reference |
| a 2.88MB drive.) | Diskette code must be loaded |
| onto the system Partition. | |
| Image Adapter/A Memory Test failure | 1. Memory Module (shown in graphic) |
| indicated by graphic representation | |
| of adapter. | |
| IML image has been updated and the | 1. Verify an operating system |
| Diskette and F1 error prompt | has been loaded onto the |
| appears on the screen. | default hard disk. |
| IML image has been updated, the | 1. Verify an operating system |
| Diskette icon appears on the display, | has been loaded onto the |
| and a I99903XX appears on the | default hard disk. |
| information panel (95). | |
| Internal Data/Fax modem does not | 1. Check that setup data |
| communicate with a remote modem or fax. | defined by communication |
| NOTE: Make sure the serial device | software is suitable for |
| power option is set to on in the | communication. |
| Set Features program. | 2. Internal Data/Fax Modem |
| 3. System Board | |
| Internal Data/Fax modem does not | 1. Check in power configuration |
| respond to software, and diagnostics | and verify the modem is turned on. |
| does not find the problem. | |
| Program load error during remote IPL | 1. Network Adapter |
| from the file server. | |
| Program loads from the hard disk or a | 1. Diskette Drive |
| non system disk or disk error (with | 2. System Board |
| the Reference Diskette in drive A). | 3. Power Supply |
| 4. Reference Diskette | |
| No colors on a color display. | 1. Display (any type) |
| (Connect display to the VGA port and | 2. VGA terminator |
| run the Enhanced VGA test to see if | |
| the display is the problem) | |
| Screen colors change. | 1. Display (any type) |
| 2. Display Adapter | |
| 3. System Board | |
| One or more keys do not work and the | 1. Keyboard |
| computer is otherwise functional. | 2. Keyboard Cable |
| (Check keyboard) | 3. System Board |
| Power Supply appears to fail at | 1. Motor Start Jumper |
| power-on, but if you disconnect optional | (Remove the motor start jumper |
| hard disks, the problem goes away | from one or more option drives.) |
| (load problem). | |
| See 'Setting the Motor-Start-Jumper'. | |
| Power-on indicator does not come on, | 1. Control/Speaker Assembly |
| fan runs, and computer is functional. | |
| Power-on indicator does not come on, | 1. System Board |
| fan runs, and computer is not functional. | 2. Power Supply |
| Power-on indicator does not come on, | 1. Power Supply |
| fan runs, and computer is not functional. | 2. System Board |
| (See Undetermined Problems | |
| before replacing FRUs) | |
| Operating system does not work, or the | 1. Default Hard Disk Drive |
| system starts up in BASIC. | |
| (See 'IML and IPL Errors' before | |
| replacing FRUs) | |
| Real Time Clock loses time. | 1. Default Hard Disk Drive |
| (This is not always a hardware failure. | |
| See 'Real-Time Clock Problems') | |
| Computer cannot be powered-off. | 1. Control/Speaker Assembly |
| 2. System Board | |
| 3. Power Supply | |
Please see the LEGAL - Trademark notice.
Feel free - send a 
for any BUG on this page found - Thank you.