Dell OptiPlex Gn Diagnostics and Troubleshooting Guide (.pdf) - Page 73
Troubleshooting System Memory, in the Dell Diagnostics. See Running
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10. Correct the system board's configuration jumper settings. Is the problem resolved? Yes. You have fixed the problem. No. Go to step 11. 11. Remove all expansion cards except the hard-disk drive controller card (if one is installed). See your system documentation for instructions. 12. Replace the computer cover, reconnect the system to AC power, and turn it on. 13. Enter the System Setup program, and update the system configuration information. 14. Insert the Dell Diagnostics Diskette into drive A, reboot the system, and run the RAM Test Group in the Dell Diagnostics. (See Chapter 4, "Running the Dell Diagnostics.") Do the tests complete successfully? Yes. Go to step 15. No. See Chapter 7, "Getting Help," for information on obtaining technical assistance. 15. Turn off the system, disconnect it from AC power, and remove the computer cover. 16. Reinstall one of the expansion cards you removed in step 11, and repeat steps 12 and 13. 17. Insert the Dell Diagnostics Diskette into drive A, and reboot the system. Run the RAM Test Group in the Dell Diagnostics. Do the tests complete successfully? Yes. Go to step 18. No. See Chapter 7, "Getting Help," for information on obtaining technical assistance. 18. Remove the Dell Diagnostics Diskette from drive A. Repeat steps 15, 16, and 17 for each of the remaining expansion cards that you removed in step 11. Have you reinstalled all of the expansion cards without encountering a test failure? Yes. You have fixed the problem. No. See Chapter 7, "Getting Help," for information on obtaining technical assistance. Troubleshooting System Memory A computer memory problem can be a faulty single inline memory module (SIMM), an improperly configured or faulty memory expansion card (if one is installed), or a faulty system board. If a random-access memory (RAM) error message appears, the computer probably has a memory problem. When you turn on or reboot the system, the Caps Lock and Scroll Lock indicators on the keyboard should flash momentarily and then turn off. If the Num Lock category in the System Setup program is set to On, the Num Lock indicator should flash momentarily and then remain on; otherwise, it should turn off. Abnormal operation of these indicators can result from a defective SIMM in socket A. Follow these steps to troubleshoot system memory: 1. Turn on the system, including any attached peripherals. Does an error message appear indicating invalid system configuration information after the memory count completes? Yes. Go to step 2. No. Go to step 8. 2. Enter the System Setup program to check the Total Memory or System Memory category. Does the amount of memory installed match the Total Memory or System Memory setting? Yes. Go to step 8. No. Go to step 3. Checking Inside Your Computer 6-5