VMware displayed fan hardware error message but HP Proliant never ever shows any diagnostics errors when running the full hardware diagnostic at boot. We have had periodic issues of server shutdowns a couple times a year w/ again no diagnostics errors but this particular one caused a couple virtual machine to get really corrupt to the point we had to perform a Veeam restore. Anyway, here's the message below from VMWARE about a hardware fan issue but I don't understand why I can't any event logs or diagnostics to reveal a fan error too. I ripped out the chassis panel and all four fans are blowing hard, no signs of slowing down. I really don't this type of corruption to happen again causing catastrophic to their most application in the environment. Any ideas of what needs replacing? Is this masking a motherboard issue? I am purchasing 4 fans that are not HP as a start. HP stopped selling for this particular Proliant unit.