Laptop Memory Upgrade - Ram Frequency Configure

[bododavid]

Hi

Before some days you "unblock" my insayde bios in Lenovo G500 ->My Post  

So i upgrade my wireless card  , change IGD - DVMT Pre-Allocated 96 or 128 MB to solve Hackintosh problems.

In advanced Bios menu i found that i can change RAM memory frequency....! In that  image you understand what i mean.

My question...

So if i change frequncy is like to make Overclock?
Or is an option if i want to upgrade memory .....to know what is max frequency Ram to Buy?




My laptop is Lenovo G500

Intel COre i7 3610qm
Chipset HM 76

RAM:
Samsung 2x4GB
Max Bandwidth PC3-12800 (800 MHz)
Part Number M471B5173QH0-YK0