Pro Tools 11.3.1 Error Codes -9171 -9172 -9173 -9129 -9093

Hello !



I am getting error codes -9171 -9172 -9173 -9129 -9093



I am running

Mac Pro

Early 2009

Processor 2.93 GHz Quad-Core Intel Xeon

Memory 16GB 1066 MHz DDR3 ECC

Graphics NVIDIA Ge Force GT 120 512 MB

Software OS X 10.9.5 (13F34)

Pro Tools HD 11.3.1

PCI HD Native Card (in slot 2)

Avid HD IO 16/16 Analog





I open a session and it idles around 20% then I play all the way through and the CPU shoots up to 100% and I get AAE 9173. The CPU then idles around 100%. Some times it falls back down to 20% but then when I press play, or arm a track to record it shoots back up and I get error codes.



The H/W Buffer Size is set to 1024 (but Ive tried everything) and the cashe is set to 1GB (also have tried everything).

I have tried doing a clean install of pro tools.

I have tried getting rid of all the plugins (this makes the CPU go down but then when I add back even just the Avid plugins that come with pro tools the CPU shoots back up)

I have tried getting rid of all elastic audio.

I have taken the computer into the apple store and they throughly checked out the hardware and OS and found nothing wrong.



Please!? Does anyone have any ideas of what I could try? I am pretty desperate.



Thank you!!

Best,

Priya

priyatsomo@gmail.com