The HE01 was tested at both Q and P modes. At its low setting (Q) the HE01 realised a worthy contender against NH-D14 and K2. Throughout this test the 140mm cooling fan remained at 800RPM. With an increase in RPM up to 1600, even lower temperatures can be appreciated, pushing HE01 forward as a premium solution. The 140mm fan at 800RPM was very quiet indeed, barely even noticeable infact but with it ramped up to 1600RPM things changed – it began to be very noticeable.
