High temperatures with corasir h100i GTX

cryptotooth

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Jun 3, 2014
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I just bought my corsair carbide 300r and a h100i gtx and have installed it with a small amount of mx-4 compound, and to be honest, after upgrading from a 212 evo I'm kind of disappointed with the temperatures I'm getting. My 4670k at 4.4GHZ 1.261v used to run hot and get to the mid 80's with the 212, but never throttle or crash under load of realbench stress test, but now, with the new liquid cooler, the temps get to 70'c still. The pump is in performance mode and I'm using the stock fans in push pull (fans spin in either direction). The fans are way too loud when they rev up and honestly, I'm not so sure these temps are acceptable for the £100 cooler as opposed to the £30 212.
Forgot to mention that my idle temps are in the mid 30's to 40's

Am I doing something wrong? without spending any money how would I decrease my temps? I want to push the chip further!

I consider the case to have good ventilation with 2 intakes on the front and one on the top in the rad, and 2 exhausts, one in the back and another in the rad.

It's kind of annoying to think I paid £100 for something that has only knocked 10'c off of my temps, and I honestly don't think i need a 4.4 overclock in the first place. Now I think about it, the money should have been put toward an i7 and bringing it to those clocks; but this isn't a post about my buyers remorse....

Admittedly this thing is quiet when running the fans slow, but it doesn't cool well enough right now, with a custom fan profile keeping everything at a reasonable level of noise. I was really expecting somewhere around the 55-60 mark to be honest.




 
The reason these CPUs run so warm is not from much heat they put out (and thus needing a large cooler), it's the heat density - the die is very small, and it's simply not possible to remove the heat quickly enough, regardless of what cooler you have. Haswell CPUs don't throttle until 100c, and Intel even warranties them for years to run at throttling temperature at stock clocks and voltage. 80c was not a dangerous temperature, nor is 70c.

I'd agree it's wise to stay further away from 100c as you increase voltage, despite it being fine/safe at stock speeds, but at 70c you still have a lot of thermal headroom.

However, I'd like to point out that you're well into diminishing returns at this point. £100 is half of the cost of a Core i7, which would give you a LOT more performance than an extra 2-4% clock speed (1-200mhz).
 


he doesn't the temps are fine but if he wants cooler results.
 

cryptotooth

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I never knew about the heat density... You learn something new every day!
Well honestly I might just take back my £100, Maplins are very good with returns from my experience. At least I can get better fans for my 212 with the money or get a h60 or something, then wait for my next upgrade cycle (2 more years).
 

cryptotooth

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currently they are configured to push air out through one fan and pull air in the other. They were both originally pulling air into the case but there was no difference in performance.
 

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