I took it for cooling the Xeon E5450 installed in the LGA775 on an old computer, which I wanted to revive a little. The stock cooler could not cope with it, the processor heated up to 75 degrees during the stress test. It's not really scary in itself, but it's annoying. But due to poor air circulation in the old case, all the hot air was vigorously sucked in by the PSU fan and it also began to overheat. I stuck in two cheap case fans for circulation and this cooler. Now, when the load is above 60 degrees, it does not warm up, the PSU is a little warm.