Troubleshooting System Memory - Dell PowerEdge 6600 Installation And Troubleshooting Manual

Troubleshooting System Memory

Problem
Faulty memory module
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Faulty memory riser card
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Faulty microprocessor board
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Action
1. Turn on the system, including any attached peripherals.
If there are no error messages, go to step 18.
2. Enter the System Setup program to check the system memory setting (see "Using the System Setup Program" in the User's Guide for instructions).
3. If the amount of memory installed in the system matches the system memory setting, go to step 18.
4. Turn off the system, including any attached peripherals, and disconnect the system from its electrical outlet.
5. Remove the front cover (see
NOTICE: See "Protecting Against Electrostatic Discharge" in the safety instructions in your System Information document.
6. Remove the two memory riser cards (see
7. Reseat the memory modules in their sockets.
8. Reinstall the two memory riser cards (see
9. Replace the front cover (see
10. Enter the System Setup program and check the system memory again.
If the amount of memory installed does not match the system memory setting, perform the following steps:
a. Turn off the system.
b. Remove the back cover.
c. Remove the front cover.
d. Go to step 11.
11. Reboot the system and observe the monitor screen and the Num Lock, Caps Lock, and Scroll Lock indicators on the keyboard.
If the monitor screen remains blank and the Num Lock, Caps Lock, and Scroll Lock indicators on the keyboard remain on, perform the following steps:
a. Turn off the system.
b. Remove the back cover.
c. Remove the front cover.
d. Remove the memory riser cards.
e. Go to step 12.
If the monitor screen does not remain blank and the Num Lock, Caps Lock, and Scroll Lock indicators on the keyboard remain on, continue to step 18.
NOTE: There are multiple configurations for the memory modules; see
Options." The following steps are an example of one configuration.
12. Swap the memory module pair in bank 1 (sockets A and B) of both memory riser cards with another pair of the same capacity.
13. Reinstall the memory riser cards (see
14. Replace the front cover.
15. Replace the back cover, reconnect the system to its electrical outlet, and turn on the system.
16. Reboot the system, and observe the monitor screen and the indicators on the keyboard.
17. If the problem still exists, perform the following steps:
a. Turn off the system.
b. Remove the back cover.
c. Remove the front cover.
d. Remove the memory riser cards.
e. Repeat steps 12 through 16 for each memory module pair installed on each riser card.
If the problem is not resolved, see
"Removing the Front Cover").
"Removing the Memory Riser
"Replacing the Memory Riser
"Replacing the Front Cover").
"Replacing the Memory Riser
"Getting Help."
Cards" in "Installing System Options").
Cards" in "Installing System Options").
"Memory Module Installation
Cards").
Guidelines" in "Installing System Board