fan speed

  winfast 13:35 11 Mar 2005
Locked

are there any cpu fan that can do 4000 rpm with 20dba sound emission?

  Gongoozler 14:13 11 Mar 2005

Hi winfast, why do you want a cpu fan to run at 4000rpm? For low noise it's better to have a large diameter slow spinning fan.

  winfast 17:50 11 Mar 2005

hi gongoozler

to keep it cool and quiet,is fan speed alone the deciding factor.

  JonnyTub 17:54 11 Mar 2005

probably better off with a water-cooling block, i presume your overclocking ?

  JonnyTub 17:57 11 Mar 2005

what cpu are you trying to cool?

  ade.h 17:59 11 Mar 2005

You can have either high speed or near-silent running, but not both. What you need is a very efficient fan; look for a good CFM rating (Cubic feat per minute is a standard airflow measurement). The larger the better, and couple it with a variable resistor. click here click here click here

  JonnyTub 18:03 11 Mar 2005

2000-5500 rpm variable speed - 21 dba click here a bit pointless posting this seeing as we don't know what cpu you have, but it will show you that what you want isn't too hard to find

  Gongoozler 16:45 12 Mar 2005

Hi winfast. For keeping the CPU cool, you need a lot of air through the heatsink cooling fins. To do this, without resorting to exotic liquid cooling, you need a small diameter fan spinning very fast, or you can have a large diameter fan spinning more slowly, and therefore more quietly. I am using this heatsink with a large diameter fan and am very pleased with it click here. I'm sure that more expensive coolers are available that use the same principle.

  winfast 21:24 13 Mar 2005

processor amd athlon 64 3200

my cpu heats up very quickly within 15 t0 20 minutes fan spins at 4500rpm which is very unusual,since i do not play games neither is overclocked

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