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PC case fans individually either stop working or ramp up to max until reboot.

CG530 4F case, and randomly mainly during playing games a fan can stop spinning or either start spinning at max speed and the only way to fix is to reboot. All the fans are connected together to a system fan header. No problems with the CPU AIO.

 

 

I can have no problems for days till I open an intensive game.

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1 minute ago, Fenroll said:

CG530 4F case, and randomly mainly during playing games a fan can stop spinning or either start spinning at max speed and the only way to fix is to reboot. All the fans are connected together to a system fan header. No problems with the CPU AIO.

do you have a different fan header you can connect them too?

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5 minutes ago, Fenroll said:

Also happens on a different fan header.

My bet is your fans are PWM but setup as DC in the bios (or vice versa).

I might be experienced, but I'm human and I do make mistakes. Trust but Verify! I edit my messages after sending them alot, please refresh before posting your reply. Please try to be clear and specific, you'll get a better answer. Please remember to mark solutions once you have the information you need. Expand this signature for common PC building advice, a short bio and a list of my components.

 

Common build advice:

1) Buy the cheapest (well reviewed) motherboard that has the features you need. Paying more typically only gets you features you won’t use. 2) only get as much RAM as you need, getting more won’t (typically) make your PC faster. 3) While I recommend getting an NVMe drive, you don’t need to splurge for an expensive drive with DRam cache, DRamless drives are fine for gamers. 4) paying for looks is fine, just don’t break the bank. 5) Tower coolers are usually good enough, unless you go top tier Intel or plan on OCing. 6) OCing is a dead meme, you probably shouldn’t bother. 7) "Bottlenecks" rarely matter and "Future-proofing" is a myth. 8) AIOs don't noticably improve performance past 240mm.

 

Useful Websites:

https://www.productchart.com - helps compare monitors, https://uk.pcpartpicker.com - makes designing a PC easier.

 

Bio:

He/Him - I'm a PhD student working in the fields of reinforcement learning and traffic control. PCs are one of my hobbies and I've built many PCs and performed upgrades on a few laptops (for myself, friends and family). My personal computers include 4 windows (10/11) machines and a TrueNAS server (and I'm looking to move to dual booting Linux Mint on my main machine in future). Aside from computers, I also dabble in modding/homebrew retro consoles, support Southampton FC, and enjoy Scuba Diving and Skiing.

Fun Facts

1) When I was 3 years old my favourite toy was a scientific calculator. 2) My father is a British Champion ploughman in the Vintage Hydraulic Class. 3) On Speedrun.com, I'm the world record holder for the Dream Bobsleigh event on Mario & Sonic at the Olympic Winter Games 2010.

 

My Favourite Games: World of Tanks, Runescape, Subnautica, Metroid (Fusion and Dread), Spyro: Year of the Dragon (Original and Reignited Trilogy), Crash Bash, Mario Kart Wii, Balatro

 

My Computers: Primary: My main gaming rig - https://uk.pcpartpicker.com/user/will0hlep/saved/NByp3C Second: Hosts Discord bots as well as a Minecraft and Ark server, and also serves as a reinforcement learning sand box - https://uk.pcpartpicker.com/user/will0hlep/saved/cc9K7P NAS: TrueNAS Scale NAS hosting SMB shares, DDNS updater, pi-hole, and a Jellyfin server - https://uk.pcpartpicker.com/user/will0hlep/saved/m37w3C Foldatron: My folding@home and BOINC rig (partially donated to me by Folding Team Leader GOTSpectrum) - Mobile: Mini-ITX gaming rig for when I'm away from home -

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Set your fancurves appropriately... This is basically default behavior and it can be very tedious to get it right. But it's worth it. It also becomes easier the more often you do it.

 

 

35 minutes ago, Fenroll said:

I set them to PWM

 

Doesn't really matter, you need to set them so they gradually ramp up, default curves (or wrongly set curves) are often way too aggressive. 

The direction tells you... the direction

-Scott Manley, 2021

 

Softwares used:

Corsair Link (Anime Edition) 

MSI Afterburner 

OpenRGB

Lively Wallpaper 

OBS Studio

Shutter Encoder

Avidemux

FSResizer

Audacity 

VLC

WMP

GIMP

HWiNFO64

Paint

3D Paint

GitHub Desktop 

Superposition 

Prime95

Aida64

GPUZ

CPUZ

Generic Logviewer

 

 

 

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On 5/14/2025 at 4:13 PM, will0hlep said:

My bet is your fans are PWM but setup as DC in the bios (or vice versa).

I usually set them to "smart" and go from there... ¯⁠\⁠_⁠(⁠ツ⁠)⁠_⁠/⁠¯

The direction tells you... the direction

-Scott Manley, 2021

 

Softwares used:

Corsair Link (Anime Edition) 

MSI Afterburner 

OpenRGB

Lively Wallpaper 

OBS Studio

Shutter Encoder

Avidemux

FSResizer

Audacity 

VLC

WMP

GIMP

HWiNFO64

Paint

3D Paint

GitHub Desktop 

Superposition 

Prime95

Aida64

GPUZ

CPUZ

Generic Logviewer

 

 

 

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19 hours ago, Mark Kaine said:

Set your fancurves appropriately... This is basically default behavior and it can be very tedious to get it right. But it's worth it. It also becomes easier the more often you do it.

 

 

 

Doesn't really matter, you need to set them so they gradually ramp up, default curves (or wrongly set curves) are often way too aggressive. 

i have a custom fan curve both in bios and fan control. The problem are individual fans that should behave the same as the other ones. I have 4 pc case fans connected together to the motherboard.

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  • 4 weeks later...
2 minutes ago, Mishaka said:

Any fix for that ? I experience it aswell

Can you tell us what fans you have, what motherboard you have, how you've plugged them in, and how exactly the fans are behaving?

I might be experienced, but I'm human and I do make mistakes. Trust but Verify! I edit my messages after sending them alot, please refresh before posting your reply. Please try to be clear and specific, you'll get a better answer. Please remember to mark solutions once you have the information you need. Expand this signature for common PC building advice, a short bio and a list of my components.

 

Common build advice:

1) Buy the cheapest (well reviewed) motherboard that has the features you need. Paying more typically only gets you features you won’t use. 2) only get as much RAM as you need, getting more won’t (typically) make your PC faster. 3) While I recommend getting an NVMe drive, you don’t need to splurge for an expensive drive with DRam cache, DRamless drives are fine for gamers. 4) paying for looks is fine, just don’t break the bank. 5) Tower coolers are usually good enough, unless you go top tier Intel or plan on OCing. 6) OCing is a dead meme, you probably shouldn’t bother. 7) "Bottlenecks" rarely matter and "Future-proofing" is a myth. 8) AIOs don't noticably improve performance past 240mm.

 

Useful Websites:

https://www.productchart.com - helps compare monitors, https://uk.pcpartpicker.com - makes designing a PC easier.

 

Bio:

He/Him - I'm a PhD student working in the fields of reinforcement learning and traffic control. PCs are one of my hobbies and I've built many PCs and performed upgrades on a few laptops (for myself, friends and family). My personal computers include 4 windows (10/11) machines and a TrueNAS server (and I'm looking to move to dual booting Linux Mint on my main machine in future). Aside from computers, I also dabble in modding/homebrew retro consoles, support Southampton FC, and enjoy Scuba Diving and Skiing.

Fun Facts

1) When I was 3 years old my favourite toy was a scientific calculator. 2) My father is a British Champion ploughman in the Vintage Hydraulic Class. 3) On Speedrun.com, I'm the world record holder for the Dream Bobsleigh event on Mario & Sonic at the Olympic Winter Games 2010.

 

My Favourite Games: World of Tanks, Runescape, Subnautica, Metroid (Fusion and Dread), Spyro: Year of the Dragon (Original and Reignited Trilogy), Crash Bash, Mario Kart Wii, Balatro

 

My Computers: Primary: My main gaming rig - https://uk.pcpartpicker.com/user/will0hlep/saved/NByp3C Second: Hosts Discord bots as well as a Minecraft and Ark server, and also serves as a reinforcement learning sand box - https://uk.pcpartpicker.com/user/will0hlep/saved/cc9K7P NAS: TrueNAS Scale NAS hosting SMB shares, DDNS updater, pi-hole, and a Jellyfin server - https://uk.pcpartpicker.com/user/will0hlep/saved/m37w3C Foldatron: My folding@home and BOINC rig (partially donated to me by Folding Team Leader GOTSpectrum) - Mobile: Mini-ITX gaming rig for when I'm away from home -

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