replacing zalman 6500b 92mm fan with 120mm fan?

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Conroy
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Post by Conroy » Mon Aug 12, 2002 2:32 pm

Has anyone done this? I want to replace my zalman's fan with a papst 4412fgl and i'm concerned that it won't fit properly
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<BR>It looks like it should work though?
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MikeC
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Post by MikeC » Mon Aug 12, 2002 2:32 pm

You can probably make it fit... but what for? what are you hoping to gain?
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Conroy
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Post by Conroy » Mon Aug 12, 2002 2:32 pm

It looks like the larger papst has a high rated airflow and lower rated dBA than the zalman at highest speed, so I was hoping maybe it would work better <IMG SRC="modules/phpBB_14/images/smiles/icon_smile.gif">
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<br>Since there seems to be a lack of more reliable comparisons of these ratings that say the theory is false, i thought trying it couldn't hurt?
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<br>The larger fan would also cover more of the RAM and chipset.
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<br>(same thing with the Panaflo FBA12G12L)
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MikeC
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Post by MikeC » Mon Aug 12, 2002 2:32 pm

I'd replace the 92mm Zalman fan, but for a quieter one. It's too loud for me, hums too much even at the lowest Fanmate setting (5V). In general, I find 80-92mm fans are about the quietest. Smaller, they whine; larger they grumble (hum, other lower pitched noise). Has to do with the size of the motor / coils / mass, I think. Haven't tried any of the 92mm Panaflos, but the 92mm Silencer from PCPower&Cooling is very quiet, much better than the Zalman.
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<br>A simple SPL rating or measurement really doesn't tell you about the quality of that sound -- I find some fans have less bearing noise, so even if they're running faster & blowing more air & measuring say 2 dB louder, it can sound "better" (less intrusive) than one which runs slower and thus has less airflow noise but its bearing chatter a bit.
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<br>If you need more cooling, go for the big one, I guess, or you could double up on 2 quieter fans like John Coyle did <!-- BBCode Start --><A HREF="http://www.silentpcreview.com/goto.php?t=s&id=18&a=3" TARGET="_blank">here.</A><!-- BBCode End --> Generally 2 quiet fans are quieter than 1 louder fan for the same airflow.
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<br>What are you trying to cool?
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Conroy
Posts: 127
Joined: Sun Aug 11, 2002 3:26 pm
Location: NY

Post by Conroy » Mon Aug 12, 2002 2:32 pm

p4/2.26
<br>I was just thinking that if the bigger one was going to be quieter and could also cool the chipset and rdram, that would be 3 advantages in its favor
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<br>But since you say the bigger fan will probably sound annoying (I'm annoyed by the hum my 80mm vantec fans are making already), I'll believe you <IMG SRC="modules/phpBB_14/images/smiles/icon_smile.gif">
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