User guide

Troubleshooting Your System 119
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, go 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 47.
7 Ensure that the memory banks are populated correctly. See "Memory
Module Installation Guidelines" on page 76.
If the memory modules are populated correctly, continue to the next step.
8 Reseat the memory modules in their sockets. See "Installing a Memory
Module" on page 78.
9 Close the system. See "Closing the System" on page 47.
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 29.
If the amount of memory installed still does not match the system
memory setting, 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 47.
NOTE: Several configurations for the memory modules exist; see "Memory Module
Installation Guidelines" on page 76.
14 If a diagnostic test or error message indicates a specific memory module as
faulty, swap or replace the module. Otherwise, swap the memory module
in the first DIMM socket with a module of the same type and capacity that
is known to be good. See "Installing a Memory Module" on page 78.
15 Close the system. See "Closing the System" on page 47.
16 Reconnect the system to its electrical outlet, and turn on the system and
attached peripherals.
book.book Page 119 Wednesday, June 24, 2009 8:21 AM