I currently have a ASUS K53SM laptop computer.
It came from factory with 4GB of DDR3 ram. It was fine in the beginning but then when I started extreme graphic designing with 3DS max I can see there was lot of latency and memory usage in task manager bumped up to 3.6GB.
Since my computer has 64-bit i5 processor and I'm running 64-bit win7 OS I know I can upgrade it to 8GB RAM memory (total 2 slots available) I also checked with manufacturer's website to ensure that motherboard can support 8GB
However I'm confused in determining the correct RAM card needed !
I installed cupid cpu-z to check the ram I have (better than opening up my computer )