Use your fingers to pry the two black tabs on either side of the RAM stick outwards until the RAM swings upwards to rest at an angle.

Gently slide the RAM out from the port maintaining the angle at which it rests.

The images show the RAM stick being pried from the port without being unlocked by the tabs. Be sure to use the black tabs to release it and avoid damaging the RAM or the motherboard.

During reinstallation, be sure to insert the RAM stick at a similar angle to which it rested after being unlocked. Then just press the stick down into place. There should be a click as the black tabs reengage to lock it in place.