Dell OptiPlex 390 Small Form Factor Owner's Manual page 70

add the peripheral cards back one by one until you find
. Power connector not installed properly
Re-seat the 2x2 power connector from the power
Possible peripheral card or system board failure has
Remove all peripheral cards from the PCI and PCI-E
slots and re-start the computer. If the computer boots,
add the peripheral cards back one by one until you find
. A possible system board failure has occurred
Disconnect all internal and external peripherals,
and re-start the computer. If the computer boots,
add the peripheral cards back one by one until you
. the bad one
. supply unit
. occurred
. the bad one
. find the bad one
Power Button
Problem Description
Troubleshooting Steps
Power Button
Problem Description
Troubleshooting
Power Button
Problem Description
Troubleshooting
•
LED
LED
Steps
LED
Steps
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