User Guide
Page 110
n 110 N Upgrading Your VAIO Computer 8 Slide the memory module into the memory module slot and push it in until it may cause damage to insert the connector edge of ... any other components on the module with the small projection in a wrong orientation, as it clicks into the slot while aligning the notch on the motherboard. Do not force the memory module into the slot in the open slot.
n 110 N Upgrading Your VAIO Computer 8 Slide the memory module into the memory module slot and push it in until it may cause damage to insert the connector edge of ... any other components on the module with the small projection in a wrong orientation, as it clicks into the slot while aligning the notch on the motherboard. Do not force the memory module into the slot in the open slot.