F5F Stay Refreshed Hardware Desktop CPU and radiator fans running at full speed during startup. Temperatures remain steady around 20°C.

CPU and radiator fans running at full speed during startup. Temperatures remain steady around 20°C.

CPU and radiator fans running at full speed during startup. Temperatures remain steady around 20°C.

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Vichoflo
Senior Member
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396
02-28-2016, 10:50 AM
#1
During startup, your CPU fans run at full speed, indicating a high load. Logging in to Windows halts the process, which hasn’t happened before.
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Vichoflo
02-28-2016, 10:50 AM #1

During startup, your CPU fans run at full speed, indicating a high load. Logging in to Windows halts the process, which hasn’t happened before.

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Rosario17_
Posting Freak
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897
02-28-2016, 07:40 PM
#2
You're asking about the CPU fan and its role in cooling. It refers to the small fan attached to the processor that helps dissipate heat during operation. When a PC starts up, these fans often run at their maximum speed briefly to ensure proper cooling before the system stabilizes.
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Rosario17_
02-28-2016, 07:40 PM #2

You're asking about the CPU fan and its role in cooling. It refers to the small fan attached to the processor that helps dissipate heat during operation. When a PC starts up, these fans often run at their maximum speed briefly to ensure proper cooling before the system stabilizes.

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Babu84700
Member
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226
02-29-2016, 10:55 AM
#3
The fan connectors are connected to the CPU port. I didn’t know I assembled the computer recently and it hasn’t started yet. Not sure what’s going on.
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Babu84700
02-29-2016, 10:55 AM #3

The fan connectors are connected to the CPU port. I didn’t know I assembled the computer recently and it hasn’t started yet. Not sure what’s going on.

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Visker124
Junior Member
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36
03-03-2016, 10:04 AM
#4
I think you have a software tool from the cooler installed, correct? An automatic update might have caused an issue. The cooler retains a default setting, which is maximum RPM. After logging in, the utility restores the fans to PWM mode. Verify the utility settings—ensure fans are configured for PWM, not just voltage or DC. It’s a good idea to create a custom fan curve profile. If the fans are connected via the motherboard, the motherboard fan utility is usually more appropriate. Each fan type has its own sound characteristics, and preferences vary. I set my CPU cooler’s fans at 50% speed on boot and idle, ramping up to 60% at 60°C and 100% at 70°C. Keep in mind I use relatively quiet Noctua fans, so 100% still remains fairly soft. Feel free to adjust the fan curves, but aim for maximum once the CPU reaches 70°C.
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V
Visker124
03-03-2016, 10:04 AM #4

I think you have a software tool from the cooler installed, correct? An automatic update might have caused an issue. The cooler retains a default setting, which is maximum RPM. After logging in, the utility restores the fans to PWM mode. Verify the utility settings—ensure fans are configured for PWM, not just voltage or DC. It’s a good idea to create a custom fan curve profile. If the fans are connected via the motherboard, the motherboard fan utility is usually more appropriate. Each fan type has its own sound characteristics, and preferences vary. I set my CPU cooler’s fans at 50% speed on boot and idle, ramping up to 60% at 60°C and 100% at 70°C. Keep in mind I use relatively quiet Noctua fans, so 100% still remains fairly soft. Feel free to adjust the fan curves, but aim for maximum once the CPU reaches 70°C.

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