X399 Taichi: Which CPU Fan Header
Printed From: ASRock.com
Category: Technical Support
Forum Name: AMD Motherboards
Forum Description: Question about ASRock AMD motherboards
URL: https://forum.asrock.com/forum_posts.asp?TID=8425
Printed Date: 18 Jul 2025 at 10:19pm
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com
Topic: X399 Taichi: Which CPU Fan Header
Posted By: mjiggidy
Subject: X399 Taichi: Which CPU Fan Header
Date Posted: 18 Apr 2018 at 2:49am
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" rel="nofollow - I have the X399 Taichi with an NZXT X62 AIO liquid cooler. The fan connector for the cooler is three pin. On the motherboard, I have CPU_FAN1 or CPU_OPT_W_PUMP headers (both 4-pin). Currently, I've connected the fans to the first three pins of the CPU_OPT_W_PUMP header. Is that the thing to do here? Since my AIO fans don't use the 4th control pin, is there any advantage in using this header over CPU_FAN1? In the BIOS, I changed the setting for that header from CPU_OPT to W_PUMP and I heard a speed difference in the fans, but no noticeable difference otherwise. I feel weird not using that CPU_FAN1 header and I'm second guessing myself. Does it even matter?
Thanks. |
Replies:
Posted By: scythefwd
Date Posted: 18 Apr 2018 at 8:48am
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I'm using the same header for my enermax cooler.. (which I'd recommend over the nzxt , though if your temps are good.. rock on good sir, rock on). |
Posted By: kerberos_20
Date Posted: 18 Apr 2018 at 4:41pm
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that 4th pin is for pwm signal, if ure on 3pin, then u can use only DC mode ------------- http://valid.x86.fr/diq4l4" rel="nofollow">  http://www.userbenchmark.com/UserRun/47132492" rel="nofollow - userbenchmark |