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Question

Fan rpm

Mar 27, 2016 11:00AM PDT

Hello,

in my case when I put 200mm fan under 600rpm, in BIOS that option is marked with red color. Is that dangerous for fan or is BIOS just showing low rpm notification?

Discussion is locked

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Clarification Request
What fan is this?
Mar 27, 2016 11:48AM PDT

I have no make or model to go check it's RPMs.

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Phanteks
Mar 27, 2016 11:57AM PDT
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That's a case with no specs.
Mar 27, 2016 12:03PM PDT

Did I miss where they specify the fan RPMs?

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Phanteks premium fan
Mar 27, 2016 12:14PM PDT
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It's right there.
Mar 27, 2016 12:29PM PDT

850 ± 250 rpm

So 600 is a pass.

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Under 600rpm
Mar 27, 2016 12:37PM PDT

But this still does`t answer my question: low rpm bad? I think it should be OK because if fan voltage is too low, he simply won`t spin?

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Your story is changing.
Mar 27, 2016 12:44PM PDT

If it's not spinning that's not what you wrote above. Don't leave out details like that.

For example you didn't reveal it didn't spin. Or the RPMs.

If it's running it may come in low for many reasons. So what is it?

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You misunderstand me
Mar 27, 2016 12:51PM PDT

I never said that fan stopped spining. I configured fan in BIOS on low rpm because I wanted silent case. Right now fan is spining on 620 rpm and everything in BIOS is ok, no red warning. If I configure fan to run slower (~570)rpm than option in BIOS gets red. Sorry for my bad english Happy

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570 would be acceptable to me.
Mar 27, 2016 1:08PM PDT

These run off the bulk +12V supply and if it goes to the motherboard it can lose a Volt there so in my opinion 570 is fine too.

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Ok
Mar 27, 2016 2:20PM PDT

Thank you for your help, regards.

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Fan speed
Mar 27, 2016 9:07PM PDT

Are you sure that bios setting controls fan speed?
I'm thinking it's just a rpm monitor.

As a test move the setting up to 1000.
Does the fan speed up?

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BIOS setting
Mar 28, 2016 12:56AM PDT

In BIOS I have two fan settings, one that control CPU fan and the second that control all chassis fans (200mm and 140mm). Settings for chassis fan:

Chassis q-fan control Enabled
Chassis fan speed low limit 600RPM
Chassis fan profile Manual
Chassis upper temperature 60
Chassis lower temperature 40 (can`t change that setting)
Chassis fan max. duty cycle (%) 85
Chassis fan min. duty cycle (%) 70

Temperatures are in celsius. Fan speed up if I change settings.