What does this mean on a motherboards spec sheet..should be easy

[MrMatt]

ASUS M4A785TD-V EVO AM3 AMD 785G

Memory Standard: DDR3 1800(O.C.)/1600(O.C.)/1333/1066/800 ECC,Non-ECC,Un-buffered Memory

What does the (O.C.) mean???

 

[MrMatt]

ASUS M4A79XTD EVO AM3 AMD 790X ATX AMD Motherboard

Also I noticed here only the 1800 has the O.C. by it. Is this a better motherboard than the one in my OP?

 

[ekoostik]

OC = overclock. It means it supports RAM OCed to 1600.

 

[MrMatt]

what if I have RAM that runs at 1600 naturally...do I have to still OC it in the bios?

 

[tcsenter]

It means the chipset and/or memory controller is not approved to run at this speed, but the motherboard manufacturer has designed the board to do it by overclocking.

 

[MrMatt]

oooh ok, thanks!~