Error Symptoms List
NOTE: To diagnose a problem, first find the error symptom in the left column. If directed to a check procedure, replace the FRU indicated in the check procedure. If no check procedure is indicated, the first Action/ FRU listed in right column is the most likely cause
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| Error Symptom |
| Action/FRU |
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| Processor / Processor Fan |
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NOTE: Normally, the processor fan should be operative, and the processor clock setting should be exactly set to match its speed requirement before diagnosing any processor problems.
Processor fan does not run but power | 1. | Ensure the system is not in power saving mode. See |
supply fan runs. |
| “Power Management” in chapter 2. |
| 2. | With the system power on, measure the voltage of |
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| processor fan connector. Its reading should be +12Vdc. |
| 3. | System board. |
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Processor test failed. | 1. | Processor |
| 2. | System board |
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System Board and Memory
NOTE: Ensure the memory modules are installed properly and the contact leads are clean before diagnosing any system problems.
Memory test failed. | 1. | See "Memory" |
| 2. | System board |
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Incorrect memory size shown or | 1. | Insert the memory modules in the DIMM sockets properly, |
repeated during POST. |
| then reboot the system. |
| 2. | Memory module. |
| 3. | System board. |
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System works but fails to enter power | 1. | Enter BIOS Setup and load default settings. |
saving mode when the Power |
| In Windows 98, check settings in Power Management |
Management Mode is set to Enabled, |
| Property of Control Panel. |
and power saving timer set in BIOS has | 2. | Reload software from Recovery CD. |
elapsed. |
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System hangs before system boot. | 1. | See "Index of Symptoms" |
| 2. | See "Undetermined Problems" |
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System hangs after system boot. | 1. | Execute a system test and set it to stop at “Halt on Error” |
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| to see the potential cause of the problem. |
| 2. | See “Undetermined Problems”. |
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Blinking cursor only; system does not | 1. | Diskette/IDE drive connection/cables |
work. | 2. | Diskette/IDE disk drives |
| 3. | See “Undetermined Problems”. |
| 4. | System board |
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Diskette Drive
NOTE: Ensure the diskette drive is configured correctly in BIOS Setup and its read/write head is clean before diagnosing any diskette drive problems.
Media and drive are mismatched.
1.Ensure the diskette drive is configured correctly in the Disk Drives of BIOS Setup.
2.Ensure the diskette drive is correctly formatted.
3.Diskette drive connection/cable
4.Diskette drive
5.System board
Chapter 4 | 71 |
