your overlocking a mother board when your letting more volts into the cpu.............
overlock : Overclocking is the process of making a computer or component operate faster than the clock frequency specified by the manufacturer by modifying system parameters. One of the most important techniques is running at a higher clock rate (more clock cycles per second; hence the name "overclocking"), but other parameters, such as CPU multiplier and memory timings, can also be changed and would be considered to be overclocking. Operating voltages may also be changed (increased), which can increase the speed at which operation remains stable. Most overclocking techniques increase power consumption, generating more heat, which must be dispersed if the chip is to remain operational.
overclocking - if even possible - comes with high risk of system instability. Undervolting is possible to some extent (depending on motherboard design and CPU quality)
http://www.pcstats.com/articleview.cfm?articleID=1804
just to drop a simple easy example of overclocking a motherboard
thats just because darkstar will argue that you can only overclock if you got cycles, np bro ill give you more cycles of what any motherboard already can perform by 2 pci slot
cof cof owned ..........
0 cycles < expander with gpu <3
perfect example of overlocking a motherboard