I have fairly good PWM temp w/ stock cooler+40mm fan (<60c after 1 hour prime stress test, idle ~35c)
Also
I don't think HR-09 (either U or S) will fit (it's too narrow to cover all the chips)


Quote Originally Posted by Retro View Post
I am going to try to do something similar on my build in progress. I have a stack of Thermalright boxes patiently waiting on my desk with an HR-03+,Ultra 120EX,and both of the HR-05's, for my IP35 Pro from which I have removed the heatpipe system. Also an Antec 900 case
I currently use an 80mm fan on my HR-05 and will try to put one on both if they fit, depending on if it works with a push-pull setup on the Ultra120EX.
I am debating about putting two rows of copper ramsinks on the pwm chips and mounting a 40mm delta fan beside it, to avoid cutting the heatpipe on the stock cooler and using that instead. Don't know if that would provide effective cooling to the pwm though