I have an i5 2500 CPU, no overclocking, with a stock cooler. I was recently introduced to my CPU temperatures, my CPU reaches high temperatures during the game - 65~67 degrees in Crysis 2. I ran OCCT test, and 3 minutes later the temperatures jumped up to ~73.
I realized that as long as the computer isn't shutting itself down, it's fine. I haven't had any problems with my computer over the three weeks, it's been running as beautifully as it can.
I can't overclock my CPU, i have an i5 2500 without "K" suffix. The non "K" models are hard to overclock.
If you didn’t buy a K-series chip and instead got a Core i7-2600, Core i5-2500, -2400, or -2300 (along with a P67,Z77-based motherboard), you’ll still have access to “limited unlocking.”
This basically means you can set clock rates up to four speed bins above the highest Turbo Boost frequency setting available at any given level of processor activity.
So, take a Core i7-2600 as an example. The chip’s base clock is 3.3 GHz. With four cores active, it gets one bin worth of additional performance—3.4 GHz. Four bins above that would be 3.8 GHz. With two cores active, Turbo Boost bumps it up two bins, to 3.5 GHz. Limited overclocking makes 3.9 GHz available in that case. In a best-case scenario, only one core is active. Turbo Boost adds four bins of frequency, yielding 3.7 GHz, and Intel’s overclocking scheme lets you run at up to 4.1 GHz.
Anyone with a K-series CPU overclocking on air is going to be in good shape. Thomas and I both have Core i7-2600Ks that’ll do 4.7 GHz at 1.35 V all day long. More mainstream folks with non-K i5s and i7s will at least have an extra 400 MHz to milk from their chips. It’s the value-oriented buyers with processor budgets between $100 and $150 (where AMD offers some of its best deals) who get screwed. The only two Sandy Bridge-based options under $175 are the Core i3-2100 and -2120 at 3.1 and 3.3 GHz, respectively. No Turbo, no BCLK option, no limited unlock—those chips are quite literally stuck.