Dell optiplex 210l light codes lights 2 and 3

DELL OPTIPLEX 210L LIGHT CODES LIGHTS 2 AND 3 INSTALL

Disconnect all internal and external peripherals, and restart the computer.

If the computer starts normally, troubleshoot the last card removed from the computer for resource conflicts.ДЄ possible system board resource and/or hardware failure has occurred.

Repeat this process for each expansion card installed.

If the problem persists, reinstall the card you removed, then remove a different card and restart the computer.

Determine if a conflict exists by removing an expansion card (not a graphics card) and restarting the computer.

Ensure that the memory you are using is supported by your computer.ДЄ possible expansion card failure has occurred.

Ensure that no special requirements for memory module/connector placement exist.

Memory modules are detected, but a memory configuration or compatibility error has occurred.

DELL OPTIPLEX 210L LIGHT CODES LIGHTS 2 AND 3 INSTALL

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 two or more memory modules are installed, remove the modules, then reinstall one module and restart the computer.Re-install all USB devices and check all cable connections.Memory modules are detected, but a memory failure has occurred.ДЄ possible hard drive failure has occurred. Remove the coin cell battery for one minute, reinstall the battery, and restart.ДЄ possible processor failure has occurred.If the computer boots, add the peripheral cards back one by one until you find the bad one.ДЄ possible coin cell battery failure has occurred. Disconnect all internal and external peripherals, and re-start the computer.Possible peripheral card or system board failure has occurred.ДЄ possible system board failure has occurred Re-seat the 2x2 power connector from the power supply unit.If the computer boots, add the peripheral cards back one by one until you find the bad one. Remove all peripheral cards from the PCI and PCI-E slots and re-start the computer.If only one memory module is installed, try moving it to a different DIMM connector and re-start the computer.

If two or more memory modules are installed, remove the modules, then re-install one module and re-start the computer.

Memory modules are detected, but a memory power failure has occurred. If it illuminates, there could be a problem with the system board.

If the LED still does not illuminate, remove the PSU connections from the system board, then press and hold the power supply button.

If it illuminates, there could be a problem with a peripheral. If the LED next to the switch does not illuminate, disconnect all internal and external peripherals, and press and hold the power supply test button.If the LED next to the switch illuminates, the problem may be with your system board. Press and hold the power supply test button at the rear of the power supply unit. Power off computer, leaving the computer plugged in.Unplug the CPU for 1 minute then reconnect and power on.ДЄ possible system board, power supply, or peripheral failure has occurred.

Plug the computer into a working electrical outlet and press the power buttonДЄ possible system board failure has occurred.

The computer is off or not receiving power Each combination corresponds to a particular error which can be seen in the below chart. In addition the power button can be blank, orange, or blue. There are 4 diagnostic lights on the Dell 990 CPUВ numbered 1, 2, 3, and 4.

Dell optiplex 210l light codes lights 2 and 3