X399 Taichi: Which CPU Fan Header

Message Topic Search Topic Options Post Reply Create New Topic Printable Version Translate Topic

   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.

Author	Message Topic Search Topic Options Post Reply Create New Topic Printable Version Translate Topic
mjiggidy Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 05 Apr 2018 Location: Los Angeles, CA Status: Offline Points: 10	Post Options Post Reply Quote mjiggidy Report Post Thanks(0) Quote Reply Topic: X399 Taichi: Which CPU Fan Header Posted: 18 Apr 2018 at 2:49am
	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.

scythefwd Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 05 Apr 2018 Status: Offline Points: 47	Post Options Post Reply Quote scythefwd Report Post Thanks(0) Quote Reply Posted: 18 Apr 2018 at 8:48am
	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).

kerberos_20 Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 06 Dec 2017 Location: czech republic Status: Offline Points: 3687	Post Options Post Reply Quote kerberos_20 Report Post Thanks(0) Quote Reply Posted: 18 Apr 2018 at 4:41pm
	that 4th pin is for pwm signal, if ure on 3pin, then u can use only DC mode
	userbenchmark