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installed, try moving it to a
different DIMM connector
and re-start the computer.
• If available, install verified
working memory of the same
type into your computer.
A possible graphics card failure has
occurred.
• Ensure that the display/
monitor is plugged into a
discrete graphic card.
• Re-seat any installed graphics
cards.
• If available, install a working
graphics card into your
computer.
A possible hard drive failure has
occurred.
• Re-seat all power and data
cables.
A possible USB failure has occurred
• Reinstall all USB devices and
check all cable connections.
No memory modules are detected.
• If two or more memory
modules are installed, remove
the modules, then reinstall
one module and restart the
computer. If the computer
starts normally, continue to
install additional memory
modules (one at a time) until
you have identified a faulty
module or reinstalled all
modules without error.
• If available, install working
memory of the same type into
your computer.
Power connector not installed
properly.
• Re-seat the 2x2 power
connector from the power
supply unit.
Memory modules are detected, but a
memory configuration or compatibility
error has occurred.
• Ensure that no special
requirements for memory
module/connector placement
exist.
• Ensure that the memory you
are using is supported by your
computer.
A possible system board resource
and/or hardware failure has occurred.
• Clear CMOS (Re-seat the
coin-cell battery. See
Removing and Installing Coin-
cell Battery).
• Disconnect all internal and
external peripherals, and
restart the computer. If the
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