Dell Optiplex 755 LPC device initialization failed

[family1232009]

Hi all,
I have some problems:

1) I can see AppleLPC.kext is loaded if I do IOReg but still get:
AppleLPC::notifyPlatformASPM - registering with plugin with ASPM Support false
ACPI_SMC_PlatformPlugin::registerLPCDriver - WARNING - LPC device initialization failed: C-state power management not initialized
AppleLPC::notifyPlatformASPM - failed to register with IOPlatformPlugin
2) After turning off the fan continues to run, SpeedStep not working

Optiplex 755 MT with Q35 Chipset + ICH9DO, Q6600, SMBIOS iMac10,1, OS X El Capitan 10.11.6, Clover
Can anyone help?

 

[family1232009]

Up

 

[liubin8666]

Encountered the same problem, but can be used into the system, that is, can not use the frequency