Sounds like a 747 taking off. I have 2 exactly the same, bought used. Has P420i RAID controller, 64GB RAM, 3 500GB SSD, each in its own RAID0 array, and 2 – 2TB Seagate Firecuda hybrid drives in RAID1. Fans run quietly after startup while posting, while in any BIOS or provisioning screen, no matter how long it runs. Stays cool and quite until an OS (Win 2012r2 or CentOS 7) loads. Then, no matter what is going on on server, fans run at 100%. BIOS is set for "Optimal Cooling"
I have googled this and seen issues with fans, also 420i RAID controller runs hot, but I've found nothing on fans spinning up to 100% and staying there while all temperatures are well below cation threshold.
I can leave provision screen up for hours and servers run quietly. Then load OS, component temps don't change, but fans immediately spin to and stay at 100%. Has anyone experienced anything like this?
Best Answer
This is probably because you're using non-HP disks in the server. What make/model are the SSDs installed in the system?
Don't do that.
I'm also assuming that you don't have the HP management agents loaded inside of the OS. It would make sense to add those since they help manage communication between the OS and ILO, which handles thermal management.