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MSI B450 Tomahawk MAX PWM fan speed up time

Joined
Aug 5, 2015
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236 (0.10/day)
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Debrecen, Hungary
Processor AMD Ryzen 7 3700X
Motherboard MSI B450 Tomahawk MAX
Cooling be quiet! Pure Rock 2
Memory Kingston Fury Beast 16 GB
Video Card(s) MSI GTX 1070 Ti Titanium 8G
Storage Samsung 870 EVO 1 TB, Western Digital Red 2 TB
Display(s) ASUS TUF Gaming VG249Q
Case Fractal Design Define C + be quiet! Pure Wings 2
Audio Device(s) Asus Xonar DSX + Microlab B-77
Power Supply Seasonic Focus GX-550
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Hi guys,

I've just bought a set of be quiet! Pure Wings 2 PWM fans and I've already set custom curves for them, but since Ryzen CPUs tend to have 10+ °C temp spikes every couple of minutes, I've been having all my fans speed up for ~5 seconds and then slow back down, which is really annoying. I have an MSI B450 Tomahawk MAX motherboard with the latest stable BIOS, and the only fan speed up delay options are 0.1s, 0.2s, 0.3s and 0.7s. Is there any option or workaround to set these delays around 2-3-5 seconds instead of these fractions?

Thanks!
 
Last edited:
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I use this when BIOS has no fan curve options.


You can set fan curves, response times and hysteresis etc. tho I think you should disable fan curve in the BIOS if you use this software, temporarily at least, just so the settings do not interfere with each other.
 
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Can you set the hysteresis in the BIOS higher?
 
Joined
Aug 5, 2015
Messages
236 (0.10/day)
Location
Debrecen, Hungary
Processor AMD Ryzen 7 3700X
Motherboard MSI B450 Tomahawk MAX
Cooling be quiet! Pure Rock 2
Memory Kingston Fury Beast 16 GB
Video Card(s) MSI GTX 1070 Ti Titanium 8G
Storage Samsung 870 EVO 1 TB, Western Digital Red 2 TB
Display(s) ASUS TUF Gaming VG249Q
Case Fractal Design Define C + be quiet! Pure Wings 2
Audio Device(s) Asus Xonar DSX + Microlab B-77
Power Supply Seasonic Focus GX-550
Mouse Zowie ZA11
Keyboard Genius KB-235
Software Windows 10 Pro
I use this when BIOS has no fan curve options.


You can set fan curves, response times and hysteresis etc. tho I think you should disable fan curve in the BIOS if you use this software, temporarily at least, just so the settings do not interfere with each other.
Thanks, I'll give it a try.

Can you set the hysteresis in the BIOS higher?
There's no such option unfortunately.
 
Joined
Jul 16, 2014
Messages
5,797 (2.15/day)
Location
SE Michigan
System Name Dumbass
Processor AMD-9370BE @4.6
Motherboard ASUS SABERTOOTH 990FX R2.0 +SB950
Cooling CM Nepton 280L
Memory G.Skill Sniper 16gb DDR3 2400
Video Card(s) GreenTeam 1080 Gaming X 8GB
Storage C:\SSD (240GB), D:\Seagate (2TB), E:\Western Digital (1TB)
Display(s) 1x Nixeus NX_EDG27, 2x Dell S2440L (16:9)
Case Phanteks Enthoo Primo w/8 140mm SP Fans
Audio Device(s) onboard (realtek?) SPKRS:Logitech Z623 200w 2.1
Power Supply Corsair HX1000i
Mouse Logitech G604
Keyboard Logitech G910 Orion Spark
Software windows 10
Benchmark Scores https://i.imgur.com/aoz3vWY.jpg?2
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