Dell 390 owner manual Problem Description

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

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