I will definitely try this, but at the moment I can only reach the server remotely. What I have tested yesterday, is to set the fan speed manually through ipmi and the lowest RPM it could get is at around 10% speed and 960 RPM. Setting the percentage lower resulted in the same RPM. So my guess here is that by introducing the front fan assembly the back panel fans are spinning below 10% and iDRAC gets confused about the speed in percentage so it defaults to 0%. That would explain why on boot time the fans all show proper percentage, as those speeds are definitely above the 10% threshold. This is of course just my theory, but anyways, seeing 0% speed is kind of annoying
Hi,   Since I have installed front fan assembly in my T620 the back fans are showing 0%, but the fans are actually spinning around 1000 RPM. [IMAGE] When running on a higher RPM percentage is displayed properly Is this a bug, if yes, is there any way to fix it?  Thanks, Istvan
PowerEdge T620 displayed fan speed 0%