Insert memory modules at a 45-degree angle to avoid damaging the connector. If the memory module is not installed properly, the computer may not boot properly. No error message indicates this failure.

For optimal performance, identical memory modules should be used in each connector.

Ground yourself and install the new memory module by aligning the notch in the module edge connector with the tab in the connector slot.

Slide the module firmly into the slot, and rotate the module down until it clicks into place. If you do not feel the click, remove the module and reinstall it.