Super fan at a good price

Came as a replacement for my getting on in years Arctic Freezer 64 LP. The manufacturer-box is something extremely tight, so that I have slightly bent fins 2 to unpack, but could easily turn grade again.
The assembly (for AMD) was easy thanks to the enclosed instructions. It is the original holder used the board I had to remove it for my old cooler. Here's a clue in the product description would be good, because I had my canceled by chance. Or you could to put the plastic bracket and make the fan for 0.50 to 1.00 more expensive to play it safe.
The mounting of the cooler is pretty simple. Neither I had the board expand or remove the RAM module and the graphics card would hardly disturbed (on an Asus M4A785TD-V Evo with Phenom X4 945).
Attach the fan with the right thin wire clips back in the housing then something fiddly and was only possible with a helping hand.
Whether this is a lot easier with developed board, I doubt almost because the strap sit pretty tight. And while holding the fan, the wire on one side hangs up and then will hang on the other, the wire like slipping into the middle of the guide. All in all, the effort but justifiable. I appreciate the built-in permanent housing in less than 10 minutes.

After rebooting, I was a little disappointed because I noticed no difference in volume, only the temperature was 15 ° cooler than Idle immediately voher. After I enabled the PWM control in the BIOS, the fan out of the closed housing is barely listening. A slight noise is also while playing the loudest what is heard. While the play is the temperature nearly 25 ° lower than with the old fan without the fan is louder recognizable.

All in all, the Katana 4 a super cooler to a (in my opinion) even better price. My computer is overclocked but not due to the Temp-improvement should also make still standing capacity.