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Old 05-23-2007, 05:45 PM   #1
Registered: Oct 2004
Distribution: SuSE, Vector, Slackware
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server cooling fan

hey everyone,
i got a new server that im in the process of installing freebsd on. i jus wanted to get some opinions and/or advice before i actually do this.... one of the ventilation fans (right in the back) is jus way too overly loud, its annoying the hell out of me, i was wondering if it would do any serious harm to the system if i disconnect it or at least for a few hours...bear in mind its not the cpu or power supply fan, this one more or less is just ventilating the chassis it seems.
Old 05-23-2007, 06:02 PM   #2
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You can give it a try. I would monitor the case temp for a bit. The power supply might move enough air. If it gets to warm then look for a quiet fan. Many sold at retail compueter stores like compusa and bestbuy

Old 05-24-2007, 10:36 AM   #3
Registered: Feb 2007
Location: Colorado
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I would seriously recommend you do not disconnect the fan(s) on the server. Airflow is very important on servers. Removing a single fan or even reducing it CFM output can cause problems. Heat is the main enemy of electronics. Remember it is a server and not a workstation/desktop, it is not going to be wisper quite!

Old 05-24-2007, 11:38 AM   #4
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If the server is more than a few years old, it will have really loud fans. I replaced a bunch of 80mm fans with 140mm fans (of the same cfm) and cut the noise way way down.
Old 05-25-2007, 11:11 PM   #5
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I suggest modify the area that the fan is mounted to. You may need to cut the opening for the fan. Use a thin fan guard and rubber grommets to reduce air noise and rattling. Cork can be used instead of rubber grommets. Not all fans are created the same, so replace the fan with low noise versions that can handle tight spaces. I use Panasonic Panaflow fans. Some people may go for the more expensive side and buy fans manufactured by Papst. Though the expensive fans are not always the best because it depends on the computer case and the internal mess, so testing have to be done to use the most efficient and low noise fan.

The fan from Power supplies are not sufficient and should never be counted as a case fan. My power supplies, Seasonic S12-430, uses one 120 mm fan, but it is only controlled by the temperature of the power supply. If the chassis fans go, I would not expect the power supply fan to cool the computer well.


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