They will replace them for you. They have excellent customer serive. I had a defective fan too and they send me a replacement immediately. I send an email descibing the problem and that was it! I didn't even have to send them the defective product back. If the place where you bought the Noctuas is n...

It depends on the load. If the load is not too big then you will have the same noise from both models.(if they use the same fan and the same fan controller). If the load goes higher then the bigger model will be quieter. Check for example the review of the Seasonic models 430W and 600W. You will not...

I own a Seasonic S12 430W REV. A1 for 1,5 year. A few months ago I begun to hear a clicking noise coming from the fan. After a period of time (I don't know how many weeks) it stopped. But...it seems that the fan became louder after that. Does anybody know what kind of fan rev. A1 used? Was it a YL s...

vaiski I would like to help you with this situation. I have a newlly bought Noctua NHU12F cooling my Athlon 64 3500. From what i have read in some reviews E6300 consumes less power than my Athlon. The box I have is a Thermaltake Shark.(Similar in dimensions with the P150) It has two 12cm Noctuas(SF1...

If you can get your hands on these new noctuas don't hesitate! I bought them and installed them yesterday and they ARE quiet!

Just like the review from SPCR showed

Hello to all the people here in SPCR! I have been watching this site for too many months and I have to congratulate each and everyone for the nice job they do. Well I am about to buy a heatsink for my AMD 64 3500 (AM2) and I have the same dilemma too. Thermalright Ultra 120 or the Noctua NH-U12F. I ...