Originally Posted by fateswarm
I wonder if delidding is always a help to overclocking or if it's only a replacement of a better cooling system. In short, does is improve overclocking or overclocking improvement might be only an indirect result of not being able to use a better cooling system?
It can, and generally does, allow for both. The primary goal is lower temperatures for decreased chip stress. The secondary bonus is that by lowering your temperatures at X voltage, you can then increase to a higher voltage which usually results in a higher clock.
For reference, I peaked mid 90's at 4.8Ghz and 1.247vcore, on an H220. After delidding, I've been at 5.1Ghz and 1.41Vcore peaking 86C. It still wasnt quite stable, and although I most likely could have upped the voltage for a stable 5.1, or a definite stabilized 5.0Ghz, I never intended to push more than ~1.35 Vcore no matter the temps/speed. Others however, would definitely be willing to so long as temperatures were acceptable under stability testing.
Even if my chip hadn't performed as well as it does, I still would have wanted the highest stable clock at my preferred voltage. Regardless of the clock I might have achieved on a different chip, the prospect of decreasing thermal stress and helping the longevity of it would have warranted a delid, low OC or not.
With that being said, on my sample, an achievable 200-300mhz increase from delidding is quite significant. Before increasing the clock past 4.8GHz, I noticed a ~25C drop. I definitely recommend it, so long as you use the vice method.
Vice I used, smooth clamping surface (ideal):
Alternative,, diamond-grip (can cause IHS scars):
What chip are looking into?Edited by adamlee05 - 6/27/13 at 4:18am