https://forum.asrock.com/ Copyright (c) 2006-2013 Web Wiz Forums - All Rights Reserved. Tue, 21 Apr 2026 18:08:11 +0000 Tue, 01 Nov 2016 22:20:29 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 12.04 360 https://forum.asrock.com/RSS_post_feed.asp?TID=3700 https://forum.asrock.com/forum_images/web_wiz_forums_black.png https://forum.asrock.com/ https://forum.asrock.com/forum_posts.asp?TID=3700&PID=18382&title=pwm-cfg1-header-on-asrock-z170m-pro4#18382 Author: parsec
Subject: 3700
Posted: 01 Nov 2016 at 10:20pm

AhmadNaim93 wrote: @parsec, CPU_FAN2 doesnt listed on my UEFI. @wardog, thanks for the clarification.

Well, that confirms it.
]]> Tue, 01 Nov 2016 22:20:29 +0000 https://forum.asrock.com/forum_posts.asp?TID=3700&PID=18382&title=pwm-cfg1-header-on-asrock-z170m-pro4#18382 https://forum.asrock.com/forum_posts.asp?TID=3700&PID=18366&title=pwm-cfg1-header-on-asrock-z170m-pro4#18366 Author: AhmadNaim93
Subject: 3700
Posted: 01 Nov 2016 at 12:25pm

@parsec, CPU_FAN2 doesnt listed on my UEFI.

@wardog, thanks for the clarification.]]> Tue, 01 Nov 2016 12:25:42 +0000 https://forum.asrock.com/forum_posts.asp?TID=3700&PID=18366&title=pwm-cfg1-header-on-asrock-z170m-pro4#18366 https://forum.asrock.com/forum_posts.asp?TID=3700&PID=18350&title=pwm-cfg1-header-on-asrock-z170m-pro4#18350 Author: wardog
Subject: 3700
Posted: 01 Nov 2016 at 3:15am

PWM_CFG1 is NOT a fan header. Forget it's even there.

That "port' is what the factory uses to program each boards PWM settings. As most boards use the same controller it is easier for them to program each board while it's in the production line rather than to have individual bins of this and that boards specifically programmed controllers.
]]> Tue, 01 Nov 2016 03:15:50 +0000 https://forum.asrock.com/forum_posts.asp?TID=3700&PID=18350&title=pwm-cfg1-header-on-asrock-z170m-pro4#18350 https://forum.asrock.com/forum_posts.asp?TID=3700&PID=18342&title=pwm-cfg1-header-on-asrock-z170m-pro4#18342 Author: parsec
Subject: 3700
Posted: 01 Nov 2016 at 12:55am

AhmadNaim93 wrote: Hi, what does the header do? Im currently using 240mm radiator and out of fan header on motherboard. Im trying to avoid connecting fan/pump directly to psu. What does the mentioned header do? The motherboard manual doesnt mention anything about the header.

That is a good question, what is the PWM_CFG1 header on the Z170M Pro4 board. I can't find it in the manual either.

All I can tell you at this point is the H/W Monitoring screen in the UEFI has a CPU_FAN 2 configuration option, and the general Fan-Tastic Tuning fan header configuration feature. My best guess is the PWM_CFG1 header is actually the CPU_FAN 2 header.

You should be able to configure that fan header independently in the H/W Monitoring screen, and use it for a fan or pump, as long as the pump's current/power draw is below 1 Amp, or 12Watts at 12V.
]]> Tue, 01 Nov 2016 00:55:30 +0000 https://forum.asrock.com/forum_posts.asp?TID=3700&PID=18342&title=pwm-cfg1-header-on-asrock-z170m-pro4#18342 https://forum.asrock.com/forum_posts.asp?TID=3700&PID=18331&title=pwm-cfg1-header-on-asrock-z170m-pro4#18331 Author: AhmadNaim93
Subject: 3700
Posted: 31 Oct 2016 at 8:18pm

Hi, what does the header do? Im currently using 240mm radiator and out of fan header on motherboard. Im trying to avoid connecting fan/pump directly to psu. What does the mentioned header do? The motherboard manual doesnt mention anything about the header.]]> Mon, 31 Oct 2016 20:18:02 +0000 https://forum.asrock.com/forum_posts.asp?TID=3700&PID=18331&title=pwm-cfg1-header-on-asrock-z170m-pro4#18331