Fan testing with Antec Kuhler 620

merlion

Senior member
May 2, 2003
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I ordered a couple of Noctua NF-F12 fans last weekend, and they just showed up today, so I thought I'd do a little experimenting.

The system is as in the sig, with the 2500K running at 42x103. All tests were run at the very high setting of IBT. The case is a Corsair 400R with the stock front two intake fans. When I installed the Antec 620, I moved the rear case fan to the top of the case as an exhaust.

First test was with the stock Antec fan in a pull configuration. Ambient temp was 69 F. CPUID reported the case temp as 78 F.

Temps as reported by Core Temp/CPUID were:
Core 0 - 61/60 C
Core 1 - 66/66 C
Core 2 - 67/66 C
Core 3 - 67/65 C

Next, I switched out the Antec fan for one of the Noctuas, also in a pull configuration. Fan was run at maximum speed. Ambient was 70, case temp 79.

Temps:
Core 0 - 62/59 C
Core 1 - 67/65 C
Core 2 - 69/65 C
Core 3 - 68/65 C

The last test was run after adding the second Noctua for a push/pull. Both fans at maximum speed. Ambient 69, case 78.

Temps:
Core 0 - 60/58 C
Core 1 - 65/62 C
Core 2 - 67/64 C
Core 3 - 66/63 C

I should run a test with the stock fan and a single Noctua in a push only configuration exhausting out the back. Then maybe to complete the various options, flip the fans to blow air from outside the case through the radiator into the case.