I have a couple C240-M4SX servers running ESXi 7.0. I had a really odd issue with one of them the other day. 3 the fans (3,4,5) were running at much higher speed than the others, and the noise was starting to get to me since they are in my home office. I switched individual fans, the whole fan tray, but the problem persisted. On a bit of a whim I decided to reboot the CIMC, and the problem went away. I believe I am on the most current firmware (BIOS C240M220.127.116.11e.0.0615220033, CIMC 4.1(2k)). Has anyone else seen this before? FYI, the power policy is set to "Low".
Thanks, but I don't think that is it. The bug you mentioned was for single CPU systems and a much older firmware version than what I am running. Mine is dual CPU (E5-2697A v4 @ 2.60GHz) with 256G RAM, (1) UCSC-PCIE-C10T-02, and (1) UCSC-MLOM-C40Q-03.