Question Explain fans and temperature in motherboard

[Cucumberzinc405]

Hi, I am currently using a ASROCK B360M Pro4, and recently I am installing a new water cooling system (Corsair h100).
then, I try to monitor my cpu temperature through the iCUe software from Corsair. From that software I see a CPU temp (which is normal), GPU temp (normal as well). and then I saw my Motherboard temp. Can someone explain the difference on motherboard temp. and why am i seeing a "motherboard" fan in my iCue, since my motherboard does not have a pre-build fan. (srry for bad english)

 

[CountMike]

Hi, I am currently using a ASROCK B360M Pro4, and recently I am installing a new water cooling system (Corsair h100).
then, I try to monitor my cpu temperature through the iCUe software from Corsair. From that software I see a CPU temp (which is normal), GPU temp (normal as well). and then I saw my Motherboard temp. Can someone explain the difference on motherboard temp. and why am i seeing a "motherboard" fan in my iCue, since my motherboard does not have a pre-build fan. (srry for bad english)

That motherboard fan could be any case fan if you have any connected.