Hello All,

 

I just purchased the following;

 

Gigabyte MZ32-AR0 v3
Epyc 7313P
(3) Noctuas NF-A14
(3) Noctua NF-F12
Noctua NH-U9 TR4-SP3
(2) Noctua NF-A8 PWM
(2) Pack PWM Fan Hub Splitter 1 to 5 Splitter

 

I have a similar setup a Supermicro 4U chassis, in my sig. I have the 140s in the front, the 120s in the middle, and the 80s as the exhaust. 

 

I'm curious how to control these fans. I've used SuperMicro in the past, you could see it in my sig, but never a Gigabyte Server Board. I appreciate any and all help. BTW, I was curious if I could control the fans via BMC Management. I'm still waiting for the memory to come in but I figured I start this thread now so I can have a head start.

 

Thanks for all the help.

Edited August 7, 20223 yr by gyrene2083
re worded

I am trying to figure out the fan policy on the Gigabyte BMC.  The fan policy manual instructions are abysmal and I am hunting for more commonplace explanations and examples.  I have yet to find anything other than the Gigabyte BMC manual.

I wrote to Gigabyte and this is what they sent me. I won't be able to test this out until much later.

 

Quote

Dear Customer,

Please refer to page 109 in the Server Manual User Guide: https://download.gigabyte.com/FileList/Manual/server_manual_mgt_console_user_guide_ami_v1.x.pdf?v=c8803d3d27566df17329248dd1b5e0d9.

You will have to create a fan profile to set and control the speed.
You can access that fan profile from clicking the Settings tab on the left > Fan Profile. 

Let me know how it works out for you.

@Nightshade So, I kind of got it to run, what I did was take the exhaust fan of the Noctua NH-U9 TR4-SP3, and placed that on CPU0-fan, then I placed the intake fan of the Noctua NH-U9 TR4-SP3, and placed that on FAN2. I made the following policy;

 

 

So what I gathered was the Reference is the Temp, and the Duty% is the fan speed.

 

So for the example above I have CPU0 Fan to the exhaust and Fan2 Fan the intake of the CPU, I also added Fan1 as the exhaust of the chassis in this Profile. 

In the Policy Reference Table it's saying if the temp (Reference 0) reaches 25C then set the fan (Duty%) to 50 percent and so on and so on. 

 

Before I figured this out, I was getting the CPU with a fan speed of 150rpm, right now it's a 1050rpm. (see below)

 

 

As you can see, CPU0_FAN, SYS_FAN1, SYS_FAN2, are the Exhaust CPU cooler, Exhaust Chassis Fans, and Intake CPU cooler, respectively. I hope this helps you understand it a little better. 

 

Now I haven't been able to figure out how to get Fan 4 & 5 work off the HD temps. I haven't had success in trying to create another Fan profile run together. If there is anyone that knows how to use the BMC management please, I would appreciate all help. 

 

I have a Gigabyte MZ32-AR0 REV 3.0 (latest BMC Firmware 12.61.35, latest BIOS M23_R40), and I see the same problem, all fans always at full blast. There is no rpm sensor readings for any fan. Fan profiles in Gigabyte Management Console have no effect and only list 4 mysterious fans (BPB_FAN_1A, BPB_FAN_2A, BPB_FAN_3A, BPB_FAN_4A) similarly to what is shown in page 109 of the user guide for Gigabyte Management Console ( https://download.gigabyte.com/FileList/Manual/server_manual_mgt_console_user_guide_ami_v1.x.pdf ).
The user manual for MZ32-AR0 revision 3.0 ( https://download.gigabyte.com/FileList/Manual/server_manual_MZ32-AR0_e_v3.0.pdf ) actually shows in page 19 that this MB has 6 fans (CPU0_FAN, SYS_FAN1, SYS_FAN2, SYS_FAN3, SYS_FAN4, SYS_FAN5).

I found that the user manual for MZ32-AR0 revision 1.0 ( https://download.gigabyte.com/FileList/Manual/server_manual_MZ32-AR0_e_v10.pdf ) shows in page 90 that they had Fan Control settings in BIOS, but it was removed for the newer revision 3.0.

@gyrene2083 , did you have to do something special to display the correct fans? What version of BCM Firwmare and BIOS are you using?

Edited June 25, 20251 yr by corescarbon

On 6/26/2025 at 2:41 AM, corescarbon said:

I have a Gigabyte MZ32-AR0 REV 3.0 (latest BMC Firmware 12.61.35, latest BIOS M23_R40), and I see the same problem, all fans always at full blast. There is no rpm sensor readings for any fan. Fan profiles in Gigabyte Management Console have no effect and only list 4 mysterious fans (BPB_FAN_1A, BPB_FAN_2A, BPB_FAN_3A, BPB_FAN_4A) similarly to what is shown in page 109 of the user guide for Gigabyte Management Console ( https://download.gigabyte.com/FileList/Manual/server_manual_mgt_console_user_guide_ami_v1.x.pdf ).
The user manual for MZ32-AR0 revision 3.0 ( https://download.gigabyte.com/FileList/Manual/server_manual_MZ32-AR0_e_v3.0.pdf ) actually shows in page 19 that this MB has 6 fans (CPU0_FAN, SYS_FAN1, SYS_FAN2, SYS_FAN3, SYS_FAN4, SYS_FAN5).

I found that the user manual for MZ32-AR0 revision 1.0 ( https://download.gigabyte.com/FileList/Manual/server_manual_MZ32-AR0_e_v10.pdf ) shows in page 90 that they had Fan Control settings in BIOS, but it was removed for the newer revision 3.0.

@gyrene2083 , did you have to do something special to display the correct fans? What version of BCM Firwmare and BIOS are you using?

I have the very same issue, same BMC and BIOS ver. Might need to downgrade the BMC to previous ver.? Like the ones released 2 years ago? I returned my mz32-ar0 due to this annoying issue, if you can try and make it work please let me know, many thanks

I also ended up returning my Gigabyte MZ32-AR0. I requested official support from Gigabyte since 25/June/2025, they still haven't answered. I bought an ASRock ROMED8-2T/BCM as replacement.

I couldn't figure it out. I thought I had it working, but didn't I ended up just using an ipmi script to control the fans.

Edited July 5, 20251 yr by gyrene2083

Gigabyte support replied 13 days later, with questions about this problem. I answered their questions and provided links to posts in online forums where others are facing this issue, while explaining that I already returned this motherboard to the seller. For those who can't just return it, you can try reaching Gigabyte support with detailed descriptions of this problem and check if they can solve it.

On 7/4/2025 at 6:32 PM, gyrene2083 said:

I couldn't figure it out. I thought I had it working, but didn't I ended up just using an ipmi script to control the fans.

Would you mind providing your ipmi script that you got working? Or, at the very least, could you let us know the hexadecimal IDs for each fan header?

Thanks.

16 hours ago, ack0049 said:

Would you mind providing your ipmi script that you got working? Or, at the very least, could you let us know the hexadecimal IDs for each fan header?

Thanks.

Hello, @ack0049 I actually checked my scripts, and apparently, I don't have it running. But here is what my setup on this mobo looks like. I made some changes to the BMC fan control a while back, and so far it seems to be working. Here's a screenshot of what I have.



Here are my fan speeds right now.

FAN1 are my two rear fans, and FAN3 are my Noctua NF-A4x20 fans (2). I have blowing on my nvme.

I hope this helps.