I have an MSI X99/ Intel 5820 combo on its way and would like some advice on the best AM to put in the CFG.

Also would it be better to have  HT on or off?

 

I'm using W7 64 and have about 450GB of mainly photoscenery add ons.

Keep HT on and affinitymasks to use are 4089 or/and 4084. 4084 might be better if you have a lot of other addons. I use 4089 on pure MSE2.0+FSGlobal but have started to use 4084 over Horizon UK scenery with add-on airfields and treescapes with 3930K.

Many thanks. I'll try them both.

Just to report back, I've been using 4084 with excellent results.