100% CPU spikes running cubase 8

Thanks for the reply Fretdoc

Indirectly, I have already cleard the Temp directories, and this had no impact. I can;t find any Steinberg/Cubase related Prefernece directories though.

As update to let anyone who is interested in my progress on this know, I have still not resilved the issue.

Over the weekend I tried the following to no avail:

  • Clean install of Windows 7 Pro 64 bit + MOBO driveres + Cubase 8
  • Moved all my files into internal drives
  • removed all external connection
  • tried my UFX using firewire instead of USB
  • removed all internal cards (except the Quadro 600 graphics card)
  • removed the additional 8 GB of ram I had added
  • changed the power supply
  • played with every setting in the power management utility of the motherboard
  • tried different power profiles under windows
    (not all at the same time)

Things I think I have noticed along the way:

  • the problem only happens when running cubase
  • the problem only happens when cubase is processing audio files ( ie playing through long ‘blank’ sections of a project does not cause problems
  • problem occurs more often when there is a high load (according to the cubase performance meter) (However it will occur regardless of how low the load is - just less frequently)

Unless I think of something else, the only options I have left to try are:

  • take out the quadro graphics card
  • change processor
  • change motherboard

These last options are made even more difficult as I guess, apart from the great cost, windows will need to be revalidated…not sure I would want to go through this for a test.