ASRock Forums : X399 Pro Fan adjustment Slow/No MAX speed https://forum.asrock.com/ Copyright (c) 2006-2013 Web Wiz Forums - All Rights Reserved. Thu, 07 May 2026 18:07:52 +0000 Tue, 06 Feb 2018 02:16:59 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 12.04 360 https://forum.asrock.com/RSS_post_feed.asp?TID=7575 <![CDATA[ASRock Forums]]> https://forum.asrock.com/forum_images/web_wiz_forums_black.png https://forum.asrock.com/ <![CDATA[X399 Pro Fan adjustment Slow/No MAX speed : You are right, it should be running...]]> https://forum.asrock.com/forum_posts.asp?TID=7575&PID=44704&title=x399-pro-fan-adjustment-slow-no-max-speed#44704 Author: NorySS
Subject: 7575
Posted: 06 Feb 2018 at 2:16am

[URL=][/URL]You are right, it should be running at max when max voltage is applied. I didn't make myself clear, I'm sorry for the confusion. THE ENERMAX AIO was set to voltage control for the pump.

And the fans are set to PWM.

Yet neither reach their max rpms. Add that issue to the slow reaction and you hit thermal tjmax.

Also what cpu are you running at 4.1Ghz, at such low temps? Nvm, just saw you are running a 1600x.

Theres a 10 core difference. Obviously heat is an even bigger issue on the 1950x @ 4.1ghz than a 1600x. But thanks for pointing out the issue of my settings.


Edited by NorySS - 06 Feb 2018 at 2:26am]]> Tue, 06 Feb 2018 02:16:59 +0000 https://forum.asrock.com/forum_posts.asp?TID=7575&PID=44704&title=x399-pro-fan-adjustment-slow-no-max-speed#44704 <![CDATA[X399 Pro Fan adjustment Slow/No MAX speed : u really think that 400 rpm on...]]> https://forum.asrock.com/forum_posts.asp?TID=7575&PID=44682&title=x399-pro-fan-adjustment-slow-no-max-speed#44682 Author: kerberos_20
Subject: 7575
Posted: 05 Feb 2018 at 7:49pm

u really think that 400 rpm on fans will make any diff?
try to touch your radiator and youll see what i mean.
i run aio fans on 900rpm, cpu sits in 30~45degrees at 4.1ghz all cores

btw pretty much every enermax pump should be running at max speed in dc (3 pin) mode
unless u have neochanger? but that one has sata connector...
]]> Mon, 05 Feb 2018 19:49:01 +0000 https://forum.asrock.com/forum_posts.asp?TID=7575&PID=44682&title=x399-pro-fan-adjustment-slow-no-max-speed#44682 <![CDATA[X399 Pro Fan adjustment Slow/No MAX speed : CPU: 1950XCPU Cooler: Enermax...]]> https://forum.asrock.com/forum_posts.asp?TID=7575&PID=44657&title=x399-pro-fan-adjustment-slow-no-max-speed#44657 Author: NorySS
Subject: 7575
Posted: 05 Feb 2018 at 7:12am

CPU: 1950X
CPU Cooler: Enermax TR4 280mm
Mobo: x399 Fatal1ty Bios 2.0
RAM : 32GB Corsair
GPU: Titan Xp
NVME Drives: 500GB 960 Evo (x2), 512GB 960 Pro (x1)



Has anyone noticed an issue with FANs slow to adjust, or not reaching their 'highest' RPM?

Here was my issue, I was trying to overclock my 1950X to 4.0GHz, but i would immediately lock up due to temps. I would run prime95, the CPU temps would climb to 70+ degrees,. before the fans/pump RPMs would start to climb. The Pump, and FANs were slow to react. I double checked all my settings, making sure they were monitor Die temp (actual CPU temps, not the offset).


The other Issue I noticed, was that that even though I was commanding 100%, the pumps and fans would not reach it. I made sure they were all set in the BIOS to 100% at 60C. No Dice. But if I set the 'fan mode' to  max' they would go to the maximum rpm.
For Instance:
  1. Enermax Pump: 
  • PWM setting @ 100%: 2400RPMs
  • MAX Setting: 2800RPMs
These two issues combined, would not allow me to stabilize my system during a stress test. It was so bad, that I had to go out and buy a Corsair Commander Pro to alleviate the situation. 

Now my system is at 4.1GHz while playing PUBG thanks to the commander Pro. 




Edited by NorySS - 05 Feb 2018 at 7:17am]]> Mon, 05 Feb 2018 07:12:33 +0000 https://forum.asrock.com/forum_posts.asp?TID=7575&PID=44657&title=x399-pro-fan-adjustment-slow-no-max-speed#44657