Intel Z68: ASUS P8Z68-V PRO
Overclocking – Auto and Manual
Now this is where things start to get really interesting, in the Auto Overclocking section. There are three ways to auto overclock your system: OC Tuner (or the onboard TPU switch), Auto Tuning in AI Suite II, and manual adjustments (either in BIOS or TurboV EVO).
First off, the OC Tuner in the BIOS. After hitting the OC Tuner in the BIOS, the system will restart and reboot, taking about 20 seconds or so. Below is the result we achieved with a 2600K in Auto Tuning.
Finishing with a 1GHz overclock for just clicking a single button is awfully impressive. Running a 2600K at 4.4GHz produces some amazing performance increases.
Next we went into the Auto Tuning section of the TurboV EVO in the AI Suite II software. Essentially what happens is you hit the Start button at the bottom of the screen and let TurboV EVO do its thing. It will bring up a display/progress screen that will show you the incremental overclock increases, and when the system finally becomes unstable, it will automatically reboot and finish off the previous stable sequence. This takes about 5 minutes, so it’s not as fast as the BIOS OC Tuner, but It’s not a big deal, as you really show only ever need to do this once and then leave it alone if you choose to go this route.
There are two presets for Auto Tuning: Fast and Extreme. Obviously, we chose Extreme.
We let the Auto Tuning run for about 5 minutes to find fully stable clocks and ended up with the following result.
Hitting over 4.7GHz on air without pushing the voltage or multi to its absolute maximum is awfully impressive. Remember, this was achieved on Auto Overclocking, in less than 10 minutes, on a board that costs only $210. That is nothing short of outstanding.
Manual overclocking can yield slightly higher results with the multiplier and bus speeds (BCLK) but as mentioned, you won’t go much higher than the base 100 MHz. There will be some wiggle room, and playing with the voltages will extract a bit more out of the board and allow some people to hit 5.0GHz with great CPUs, but with the Auto Tuning will produce extremely impressive results in a few minutes and one click of a mouse. Frankly, it may sound blasphemous to some, but ASUS may have made manual overclocking no longer necessary.
That being said, we tweaked the voltages a bit and manually overclocked the system. We fared a bit better, breaking the illustrious 5.0GHz barrier.
We know this particular chip really doesn’t have much more in the tank as far as multiplier goes, so the P8Z68-V PRO essentially topped out the CPU, which is very encouraging to see.