Regardng de-lidding. I would have to disagree with you there. Personally, I don't regard de-lidding as a "must". It's true that there are a handful of Ivy CPU's out there with shocking TIM application under the IHS. For those "defective" CPU's then yes, de-lidd, or send the defective CPU back to the supplier.
Now the question to ask, is how much performance is it possible to gain by de-lidding. And the answer, is 10% at the most. So what does that 10% give you, in the scenarios where you actually need it? At 10 FPS you would gain a mere ONE frame per second. At 20 frames per second, you would gain an almighty TWO frames per second. Hardly a massive jump in frame rate is it? Hardly significant.
So, logically, for me, I couldn't justify de-lidding. Especialy considering that I get high frame rate anyway.
I have no problem with others deciding to de-lidd though, if they so desire. I have been tempted myself, for the hell of it, for fun, out on interest, to see what I could achieve. But if I do in the future... it won't be for the minimal performance increase.
Ok, i said that for ivy bridge de-lidding is the must in my opinion. That's becouse i always try to get maximum of my PC. I think that is very important attitude if you want max from fsx. For me 2fps in fsx are very important. I have high fps, but for example - taking off from Aerosoft EDDM in bad weather with NGX, your fps will go down for sure, and in this situation 25-26fps feels very different(smoothnest and stutters) then 23-24. Or 23-24 vs 21-22.
It's simple: de-lidding = higher overclock = beter fps(and overall performance)
I had my PC at 5GHz and i can tell you that you can see the difference for sure vs 4.8GHz(my current OC), and it's just a couple of fps difference, but fsx is much, much smoother. I will go for 5Ghz again after i change my cooler.
However, the average Ivy bridge can overclock up to 4.5-4.6 without de-lidding. For me, in regrd to my 3770K, I can get to 4.6. as soon as I hit 4.7 the temps shoot up dramatically, to unacceptable levels.
I would de-lidd anyway, it's better to be at 4.6GHz with temps at 50c then 80-90c
I think it's about what you want from fsx, you don't need to overclock if you don't use complex airliners for example. In fsx, you want get 200+fps with NGX or MAddog, ORBX, Aerosoft etc... You need 20 to 30fps - so 2fps means a lot.
So Martin, i'm not saying that you are wrong, i just tried to explain my point of view