Supermicro X10SRi-F: Where to connect CPU fan?

[6c352e2e-f287-445a-9cd3-d]

Hi,

the X10SRi-F doesn't seem to have a designated connector for a CPU fan. It's got FAN1 through FAN5 and FANA.

Where should I connect the CPU fan?

According to https://forums.servethehome.com/index.php?resources/supermicro-x9-x10-x11-fan-speed-control.20/ , FAN1 through FAN5 would be connectors for a CPU fan while FANA would be for a case fan. Having 5 fan connectors for a single CPU while having only one connector for case fans seems a bit strange. Maybe the information is incorrect.

Perhaps it doesn't matter, but FANA is too far away from the CPU socket for the cable of the CPU-fan to reach it, and I do have some case fans I could connect as well.

 

[RolloZ170]

FAN1 through FAN5 are for server chassis, they blow over the whole board, use one of these for CPU.
use FANA for Drives

 

[i386]

Where should I connect the CPU fan?

On the closes connector.
Most serverboards have two zones, one controlled by cpu heat (fans with numbers) and the other by the system temperature/pcie area (fans with letters).

 

[6c352e2e-f287-445a-9cd3-d]

Thanks everyone!

I'll use the closest connector for the CPU then, which seems to be FAN 1 or FAN2.

This goes into a Chenbro SR10782 with fans behind the hard drives. I think with the current mainboard, I have those fans just connected to 12V so they run at 100%. Would you connect them to the connectors on the mainboard instead or could the hard drives get too hot? The CPU (E5-2697 v3) probably won't get particularly hot, and it'll have a Noctua NH-D9DX i4 3U on it (because this needs to be quiet and reliable while the room can get hot in the summer).

PS: What does FANA actually do? I'm going to install a 10GB copper network card, and I could place a fan to blow on it just in case. But it's not like the board would know about the temperature of the network card, or would it.

 

[6c352e2e-f287-445a-9cd3-d]

For the record, I asked the Supermicro support this question by email, and it took only a little over 3 hours to get a great answer. They even pointed out that there can be specific problems with Noctua fans.

So it seems their customer support is amazingly awesome