RAM upgrade

[blessedreport]

Hey again

I'm planning on upgrading my RAM from 4G to 8G and need help understanding all the types and models etc.
If your in the mood for creating a ram buying guide, please, feel free to share below.

Motherboard: asus p7p55d pro

Primary use is heavy gaming...

 

[Leaps-from-Shadows]

Look inside your computer and get the same kind (brand, speed, timings, voltage) as you have now.