Dell Dimension YH242 Owner's Manual page 67

Light Pattern Problem Description
No memory modules are detected.
Memory modules are detected, but a
memory configuration or compatibility
error has occurred.
A possible expansion card failure has
occurred.
Suggested Resolution
• If two or more memory modules are
installed, remove the modules (see
"Removing Memory" on page 85), then
reinstall one module (see "Installing
Memory" on page 83) and restart the
computer. If the computer starts
normally, continue to install additional
modules (one at a time) until you have
identified a faulty module or
reinstalled all modules without error.
• If available, install properly working
memory of the same type into your
computer (see "Installing Memory" on
page 83).
• If the problem persists, contact Dell
(see "Contacting Dell" on page 137).
• Ensure that no special requirements
for memory module/connector
placement exist (see "Memory" on
page 82).
• Ensure that the memory you are using
is supported by your computer (see
"Memory" on page 123).
• If the problem persists, contact Dell
(see "Contacting Dell" on page 137).
1
Determine if a conflict exists by
removing a card (not a graphics card)
and restarting the computer (see
"Cards" on page 86).
2
If the problem persists, reinstall the
card that you removed, then remove a
different card and restart the computer.
3
Repeat this process for each card
installed. If the computer starts
normally, troubleshoot the last card
removed from the computer for
resource conflicts (see "Resolving
Software and Hardware
Incompatibilities" on page 72).
4
If the problem persists, contact Dell
(see "Contacting Dell" on page 137).
Troubleshooting Tools
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