hy guys

sorry for wrong category....it's about an Dell Server R720...working about 1 year as gateway...nothing special... ....and 1 year was stopped...kept in very good condition...

problem....fan2 rpm is less than the lower critical threshould ....standard error....

replace all 6 fans with new fans...update bios and all firmware from dell up to date...reset bios for 1 hour...take out the cr 2032 also....factory default settings..cleared all the logs and error...stil the same error

epsa shows fan2 zero rpm

i think the motherboard is the problem....

any advice please.... ?

thank you