Hi all. I've been doing a lot of overclocking and testing with my i5. My main goal is to be able to use turbo and all the power saving features on. On my ASUS P7P55D PRO mobo it's so far a lot easier to OC than on my MSI P55GD65 (which I had to exchange for the ASUS). Anyway, I've noticed a wierd phenomenon. So, I wanted to get 180bclk to make the most of my CL9 memory timing (certified for 1600mhz CL8, so this is 1800mhz CL9). It required 1.35 Vcore and 1.2 Vtt. I decided that I didn't really like it tho because temps were up to about 71C in Intel Burn Test. So I set all the voltages back to auto and 170 bclk... booted fine, passed IBT. Then, I opened up ASUS TurboV EVO which is an overclocking app in windows. Basically I like it for quick tests and then I make the permanent changes in the BIOS. Anyway, I didn't touch voltages but set the bclk to 175. Passed IBT. 177 passed. 178 passed. 179 passed. 180 crash. Does this seem wierd? I should point out as well that the auto vcore is 1.26V and the Vtt is 1.17V iirc (I'll check it in a moment) but anyway, does this seem odd?