The classic 9173 CPU spikes, might be graphic ?

[Guilla]

Originally Posted by Darryl Ramm

In this case I suspect it's a Samsung T3 or T5, and so enabling Trim will not do anything for those USB drives. Which is why I asked *exactly* the drives and how they are connected....and did not get that clear info. It its a SATA drive in a Thunderbolt enclosure, then sure you could enable trim... and would be good advice in general.. but is unlikely to fix any issue here since we already have disk cache involved.

Sorry Darryl I was off the studio so I could not get a clear info !

Now it appears that I made a mistake about my external SSD. Really sorry,

It is a WD Blue 3D NAND SATA SSD 1To (I was completely off) (560mb/s read and 530mb/s write).
Although those CPU Spikes happened with my previous external HDD too (a 7200 rpm HDD).

Sorry for "Time Capsule" thing too haha.

Well your explanation are spot on and thanks a lot of this !
It seems a lot of things to do just to check if Pro Tools is acting normally, regarding the fact that all the other DAWs I got work flawlessly. But I need Pro Tools so whatever it takes...

I will try that asap, I have 2 HDD backups for this, I'll need to buy a cheap SSD too.