You might be able to connect an LGA1155 Xeon with ECC RAM to your Dell OptiPlex 390, but it depends on compatibility and configuration. Check if the motherboard supports ECC and verify the compatibility between the processor socket and memory type.
You might be able to connect an LGA1155 Xeon with ECC RAM to your Dell OptiPlex 390, but it depends on compatibility and configuration. Check if the motherboard supports ECC and verify the compatibility between the processor socket and memory type.