Something is not right. I have the Zalmen 7000-alcu and my temps droped when I switched from the stock hsf.
I would re-seat the hsf. Clean all the old paste and reapply. It must not be seated correctly. There is no way a Zalmen is going to give higher temps the a stock set-up if seated correctly.
I would re-seat the hsf. Clean all the old paste and reapply. It must not be seated correctly. There is no way a Zalmen is going to give higher temps the a stock set-up if seated correctly.