Dell POWEREDGE R805 Hardware Owner's Manual page 151

3 Turn on the system and attached peripherals and, as the system boots,
note the messages on the screen.
If an error message appears indicating a fault with a specific memory
module, go to step 12.
If you receive any other system message that indicates a nonspecific
memory problem, continue to the next step.
4 Enter the System Setup program and check the system memory setting.
See "Using the System Setup Program" on page 47. Make any changes to
the memory settings, if needed.
If the installed memory does not match the amount of memory shown in
the System Setup program, proceed to the next step.
If the memory settings and installed memory indicate no problems,
proceed to step 12.
5 Turn off the system and attached peripherals, and disconnect the system
from the electrical outlet.
6 Open the system. See "Opening the System" on page 71.
7 Check the memory banks and ensure that they are populated correctly. See
"General Memory Module Installation Guidelines" on page 114. Make any
necessary changes.
If the memory modules are populated correctly, continue to the next step.
8 Reseat the memory modules in their sockets. See "Installing Memory
Modules" on page 117.
9 Close the system. See "Closing the System" on page 71.
10 Reconnect the system to its electrical outlet, and turn on the system and
attached peripherals.
11 Enter the System Setup program and check the system memory setting.
See "Using the System Setup Program" on page 47.
If the amount of memory installed still does not match the system
memory setting, then proceed to the next step.
12 Turn off the system and attached peripherals, and disconnect the system
from its electrical outlet.
13 Open the system. See "Opening the System" on page 71.
Troubleshooting Your System
151