Re: Strange problem after hardware upgrade
Try enabling MSI on the components that support it. MSI works pretty well on the Intel chipsets. Add NVreg_EnableMSI=1 to the nvidia kernel module options and enable_msi=1 to snd-hda-intel. The kernel should enable MSI by default on the ahci controllers and ethernet cards that are known to support it, and the Intel southbridge AHCI controllers should support it. You might not have MSI enabled in your kernel config.