Offset mode overclocking?

Hardware Overclocking
1

Hi

I recently overclocked my i7 2600k to 4.4ghz and I choose to set the voltage using offset instead of just a constant manual voltage. However under full load cpu-z reads 1.272-1.288V but when it's not under 100% load ie just browsing the web I've seen the voltage go as high as 1.34V, though it only goes high for a short time it is usually around 1-1.2V? So what I'm wondering are these voltage spikes normal and safe? BIOS settings that I set, load line calibration = regular, Phase Control = Optimized, CPU voltage = offset mode +0.010V.

Cheers.

System specs

Intel Core i7 2600K

Coolermaster hyper 212 EVO

ASUS P8P67 Deluxe

HIS HD6970

8gb G.Skill ripjaws CL9 @ 1600mhz

Enermax NAXN 850W

Cosair Force 3 120gb SSD

Western Digital 2tb Cavair Black

Antec 902 V3 Case

2

Just wondering, is there any particular reason why you went with offset mode?

As long as the voltage jump doesn't cause the temps to go mental then I think those voltages should be fine.

3

that is called Vdroop