Scythe S-FLEX SFF21E vs SFF21D (is my E defective?)

Control: management of fans, temp/rpm monitoring via soft/hardware

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zordex
Posts: 22
Joined: Sun Jan 30, 2005 12:14 pm

Scythe S-FLEX SFF21E vs SFF21D (is my E defective?)

Post by zordex » Wed Dec 22, 2010 1:09 am

Hi,

I have ordered one SFF21E and one SFF21D. While the D is near silent, the E is quite loud!
I would not even consider it a low noise fan. Is it defective, or is the E really that much louder?
(Is Scythe ok at replacing defective fans?)

Thx!

Unrelated: Oiling my old Nexus and old scythe fans had no impact :(

Modo
Posts: 486
Joined: Wed Apr 16, 2008 3:32 am
Location: Poland

Re: Scythe S-FLEX SFF21E vs SFF21D (is my E defective?)

Post by Modo » Wed Dec 22, 2010 1:14 am

When running at full speed, any 120 mm 1200 rpm fan (like the E version of S-FLEX) will make noise by creating turbulence. The S-FLEX should become inaudible somewhere between 500 and 700 rpm, depending on your hearing. This model is useful, if you want the system to be inaudible when not doing much, but the components are too hot for low fan speeds when stressed.
Can you keep it down? I'm having trouble hearing the artillery.

Current rig
Old PC

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