Business PCs, Workstations and Point of Sale Systems

Hi, could anybody comment on the noise level of my Z840 which arrived yesterday. https://youtu.be/ng2SomTy870

It's a dual E5-2637V3, with 32GB of RAM (4 x 8GB), and a quadro M4000. I installed a mellanox 10GB adapter also, and was running fine, but doubted if it increased the fan noise (but removing it made no difference).

The Z840 is almost as loud as my ML350p GEN8 server.....

I did extensive research before buying this beauty, and hope there is something wrong which I can fix myself.

It has bios 2.54 (when I tried updating the bios in the setup, it offered to downgrade it to 2.50, don't know why and I did not do that). I cleared the cmos, which had no effect.

I tried re-seating all connectors and covers, but no result. I also applied new thermal paste to both processors (arctic silver), but made no difference.

Is there a way to tell whether all fans are running? I have looked in the bios, and cannot find it. Cause it's running folding at home now, and I can see (with speedfan) the one processor get up to 77 degrees celcius (and that is the max according to the intel site), and the other processor is around 60 degrees....

Also ran the short diagnostics on the mainboard, stated 'ok'.

Appreciate any help!