Fujitsu Esprimo E5730

Hello bios addict.
I’m not sure it’s the good place for this topic, but i’ve a big problem with this machine/bios.
The problem : All fan (case, cpu, power) are allways at full speed since bios update (official bios from fujitsu site, and i dont take care of backup original bios).
I’ve tested multiple thing : all bios version, reset each time ME setting, activate or not fan or cpu thermal system, some different CPU.
I can see cpu temp on win7, but it’s like motherboard cant control the fan (and we cant see fan speed on win7 with special tools) or cannot see chip that control fans.
I have replace some caps in power supply (but i’m going to re-check), no “bombed” caps on motherboard.

Thanks for all your comments or help.