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Old 10-01-18, 08:54 PM
Nine Iron Nine Iron is offline
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Fans not being temperature-controlled in Windows

Just built a new rig around a Gigabyte Z370N ITX and Windows 10 Pro.

I set the CPU fan curve in the BIOS and it behaves correctly. However, when I get into Windows and run OCCT the fan speed is fixed and won't increase with temperature.

I've just updated to the latest (or, rather, later - there being only two) BIOS and it has had no effect. I've tried both PWM and 3-pin fans controlled via PWM and voltage, respectively, to no avail.

Any ideas? I'm going to be OCing this one so I need the fans to work properly!

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Old 10-01-18, 09:11 PM
FTLN FTLN is offline
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Did you install any of the gigabyte software ? Maybe the fan software is interfering, a long shot I know but might be worth a check..
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Old 10-01-18, 09:31 PM
Nine Iron Nine Iron is offline
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Quote:
Originally Posted by FTLN View Post
Did you install any of the gigabyte software ? Maybe the fan software is interfering, a long shot I know but might be worth a check..
Nothing but the drivers has gone in; no utilities.

I'm reading elsewhere that I should be using the OS-level Gigbayte utilities, but I don't want to have OS processes running when the BIOS should be doing its bloody job! Also reading that it's a known issue with the later chipsets... just hope there's a workaround.
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Old 11-01-18, 06:35 PM
Nine Iron Nine Iron is offline
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I can add

a) the CPU fan stops briefly during the Windows loading screen,
b) under the System Information Viewer's Smart Fan Control program (Windows utility), the CPU fan's temp sensor is FAR away from the CPU, at the bottom corner of the board - I'll try and get a picture of this, because it's ridiculous.

Am I getting to the point where I should RAM this board? Never had such faffing with the CPU FAN with anything else I've ever built!
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Old 11-01-18, 09:08 PM
FTLN FTLN is offline
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One last question, are you setting cpu fan curves to ramp up based on cpu temp or another temp ?
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Old 11-01-18, 09:23 PM
Nine Iron Nine Iron is offline
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Originally Posted by FTLN View Post
One last question, are you setting cpu fan curves to ramp up based on cpu temp or another temp ?
Definitely keyed to the CPU temperature. Control method set to Auto - it's PWM - and it responds to commands in BIOS.

ETA - tried a couple of different profiles and they all get blitzed once Windows starts up.
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Old 12-01-18, 12:05 PM
Warchild Warchild is offline
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Quote:
Originally Posted by Nine Iron View Post
Definitely keyed to the CPU temperature. Control method set to Auto - it's PWM - and it responds to commands in BIOS.

ETA - tried a couple of different profiles and they all get blitzed once Windows starts up.
Instead of auto, try to set an upper and lower threshold temp. See if it adheres to that.
I wonder if windows is thinking your software is still installed. Since its not there windows has no idea on config so uses default max 12v parameters.

I'm hearing many many people have issues with Gigabyte lately.
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Old 12-01-18, 03:45 PM
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Sometimes when programs probe for sensors they also mess up configuration, maybe OCCT hasn't been updated for your motherboard. For example HWiNFO messed up my CPU fan curve until a recent patch.

All I can suggest for now is another program like SuperPi for stressing and HWiNFO for monitoring.
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Old 12-01-18, 04:11 PM
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Lazlo Lazlo is offline
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Quote:
Originally Posted by Nine Iron View Post
I can add

a) the CPU fan stops briefly during the Windows loading screen,
b) under the System Information Viewer's Smart Fan Control program (Windows utility), the CPU fan's temp sensor is FAR away from the CPU, at the bottom corner of the board - I'll try and get a picture of this, because it's ridiculous.

Am I getting to the point where I should RAM this board? Never had such faffing with the CPU FAN with anything else I've ever built!
The System Information Viever - Smart Fan Control is actually a gigabyte software/utility and (at least for me) overwrites the uefi settings.
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Old 12-01-18, 04:12 PM
Nine Iron Nine Iron is offline
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Quote:
Originally Posted by Lazlo View Post
The System Information Viever - Smart Fan Control is actually a gigabyte software/utility and (at least for me) overwrites the uefi settings.
That's the one I had a problem with - thinks the CPU temp sensor is at the bottom corner of the board AND has the CPU temperature fifteen degrees lower than it really is!
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