Hello,I "solved" the problem by moving my 2 sleds to slot 2 and 4 of the machine (the bottom ones).As soon as I have 2 machines plugged into the C6300 enclosure, and one of them is in slot 1 or 3, my fans go crazy. I don't understand why, but maybe something is not properly plugged between the upper connection card and the fan card / power splitting card?However, I think I already tried this configuration before trying to update the firmware and BIOS of the sleds. Maybe it helped.If you hear about someone having the same kind of problem, do not hesitate to contact me.I won't need to add any other sleds to this enclosure, so this solution is fine for me. But I am still curious about the real origin of the problem.Thank you all for your help.
I own a C6300 server, hosting two C6320p blades with the exact same Xeon Phi 7230 @ 1.30GHz config.Symptoms :With only one of the C6320p blade in the host chassis, everything works fine.But as soon as we plug a second one (even powered off), the fans of the C6300 go crazy and reach 16,800 RPM (over 17,850), causing a very relaxing plane taking off sound. As soon as one blade is powered on, and a second one just plugged in, the problem appears.What I tried :- The available updates :    - iDRAC : 2.75.75.75 (on both blades)    - C6300 Firmware 3.18 ([URL] The "raw 0x30 0x12" ipmitool command    - Output with 1 blade :      01 60 1b 03 18 06 26 00 00 01 ff 00 01 25 2a ff      ff 0f c2 00 00 01 04 01 04 31 c5 11 ff 0f    - Output with 2 blades :      01 8c 1b 03 18 00 00 00 00 01 ff 00 01 25 2a ff      ff 0f c2 00 00 01 04 01 04 31 c5 11 ff 0f Does someone have a mysterious raw ipmitool hexadecimal command to solve this problem?Or even more information about what this output means?The green values (03 18) means the firmware version is indeed the last one available.But what about the red ones?I precise I don't have any other weird behavior on this machine, no LED blinking, no strange ipmi bugs... Everything seems to work just fine except the fan control.Thank you for your help!
Fan at max speed on C6300 server with 2 x Xeon Phi