H510M-HDV-M.2 SE fan speed issue

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   Hello, I use new ASRock H510M-HDV-M.2 SE with two fans (ordinary 3-pin connectors), CPU and chassis, automatically controlled by the MB so when PC starts they are about 300-400 RPM. However, sometimes when the PC starts the chassis fan goes up to max 2000-2500 RPM, this happens 1 of 5-6 times.
I've tried to reset UEFI settings, redetect fans speeds in Fan-Tastic, however, the problem still occurs. Also sometimes the fan becomes quite after launching the Win10, but usually it just proceeds at max RPM so I need to restart the PC. Sometimes it launches quiet, but the RPM increases from 300-400 up to 500-600.  Can't get the reason of this flaw.

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Pilgrim Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 23 Aug 2025 Status: Offline Points: 105	Post Options Post Reply Quote Pilgrim Report Post Thanks(0) Quote Reply Topic: H510M-HDV-M.2 SE fan speed issue Posted: 02 Oct 2025 at 1:07pm
	Hello, I use new ASRock H510M-HDV-M.2 SE with two fans (ordinary 3-pin connectors), CPU and chassis, automatically controlled by the MB so when PC starts they are about 300-400 RPM. However, sometimes when the PC starts the chassis fan goes up to max 2000-2500 RPM, this happens 1 of 5-6 times. I've tried to reset UEFI settings, redetect fans speeds in Fan-Tastic, however, the problem still occurs. Also sometimes the fan becomes quite after launching the Win10, but usually it just proceeds at max RPM so I need to restart the PC. Sometimes it launches quiet, but the RPM increases from 300-400 up to 500-600. Can't get the reason of this flaw.

Pilgrim Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 23 Aug 2025 Status: Offline Points: 105	Post Options Post Reply Quote Pilgrim Report Post Thanks(0) Quote Reply Posted: 02 Oct 2025 at 1:09pm
	And surely I mean it occurs spontaneously, without high ambient temperature or high temperature indications, just in idle regime.

Pilgrim Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 23 Aug 2025 Status: Offline Points: 105	Post Options Post Reply Quote Pilgrim Report Post Thanks(0) Quote Reply Posted: 13 Oct 2025 at 12:25am
	This problem still occurs. Sometimes when PC launches the chassis fan goes max RPM. Has anybody faced this? UEFI v1.60 is the last one.

Pilgrim Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 23 Aug 2025 Status: Offline Points: 105	Post Options Post Reply Quote Pilgrim Report Post Thanks(0) Quote Reply Posted: Yesterday at 2:14am
	I've found out, this happens when PC starts without internet connection. Why the motherboard needs internet connection to tune fan properly?

Xaltar Members Profile Send Private Message Find Members Posts Add to Buddy List Moderator Group Joined: 16 May 2015 Location: Europe Status: Offline Points: 32113	Post Options Post Reply Quote Xaltar Report Post Thanks(0) Quote Reply Posted: Yesterday at 6:04am
	Have you tried opening a support ticket with ASRock directly? You can do so here. This forum is a community forum so any assistance you get typically will come from other forum members. In cases like this with specific issues you often need to contact ASRock for assistance as it's unlikely anyone on the forums has encountered your issue and knows how to solve it. Good luck!