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When do Haswell USB 3.0 chips begin rolling out? - Page 3

post #21 of 24
yea I mean just like ivy, any chip can hit 5ghz, it's just a question of voltage, and since ivy and haswell increase pretty linearly with voltage and are pretty hardy, ie temp limited, it's really a question of how good your cooling is. Some chips might be so bad that you reach 'danger levels' of 1.5v+ to hit higher overclocks (ie risk degradation after long term intensive use), but even that danger can be minimized with better cooling (since temps can affect degradation as much as cooling).

So if you are willing to push high voltages, ie 1.5v+, just make sure you have even better cooling. As in, I'd be okay with 89C as a max temp, but if you are at 1.5v+, I'd really go with 80-85C as a max temp.

I think the problem is that you got a lot of people reporting without delidding, especially when Haswell first came out. Everyone said Ivy was a bad overclocker when it first came out too, when in reality not only did it overclock the same as Sandy, it actually overclocked better, and ran cooler, you just had to delid it to let it's 22nm process shine over the hotter 32nm of sandy. While Haswell isn't going to run cooler than Ivy, even delidded, it will still a lot cooler delidded.

Delid Haswell, and I think you'll find it'll overclock similarly to Ivy, as long as you use better cooling than you would on Ivy for the same overclock. Anyone using a Hyper 212 or even an h50/h60/megahalems cooler on a Haswell is just being silly - you don't buy a premium, $200+ CPU and then only spend $20 on the cooling. It's like buying a mustang only to put some cheap, used, no-name tires on it (not a great analogy, since you can't really race cars or even use a civic to it's full performance extent on public roads, and even cheap tires will handle okay and let you go 50 around a highway turn or rev it at the light).

Also, like with Ivy, the TIM isn't the problem, Intel actually uses a very high-end TIM (far better than AS5, probably better than MX-4, likely on par with PK-2, maybe pK-3 or masscool even). The problem is the gap between the IHS and die. Using high-end TIM, like what Intel uses, isn't as good as using pure metal fluxless solder like was used on Sandy Bridge, so the solution is to reduce the gap, which you do when you rub off that black gunk intel uses. I dont know why Intel doesnt use a better glue that doesn't create a gap instead of that tar, or just uses way less glue.
Edited by Belial - 7/19/13 at 2:48am
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post #22 of 24
Thread Starter 
Yeah I heard the gap on the IHS being the issue as well....but I say "TIM" just to get my point across....I'm too lazy to go into detail regarding gap...lol

Honestly, I would LOVE to delid my ivy and haswell. But its too nerve wrecking for me....like seriously....I would have done it a long time ago if it were that easy.....but I just don't want to risk it....but yeah delidding would be freaking awesome. I'm running a Noctua D14, which I feel is the minimum people should run with these kinds of OC's....and even then, I feel a D14 is handicapped compared to a full custom WC setup. A delid would make my D14's life much easier tongue.gif
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post #23 of 24
First world problems. thumb.gif
Edited by Darkwizzie - 7/19/13 at 4:09am
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post #24 of 24
Quote:
Originally Posted by steven88 View Post

Yeah I heard the gap on the IHS being the issue as well....but I say "TIM" just to get my point across....I'm too lazy to go into detail regarding gap...lol

Honestly, I would LOVE to delid my ivy and haswell. But its too nerve wrecking for me....like seriously....I would have done it a long time ago if it were that easy.....but I just don't want to risk it....but yeah delidding would be freaking awesome. I'm running a Noctua D14, which I feel is the minimum people should run with these kinds of OC's....and even then, I feel a D14 is handicapped compared to a full custom WC setup. A delid would make my D14's life much easier tongue.gif

just say dat gap.

nh-d14 i'd say is really the weakest heatsink that shoudl do well on haswell i5, especially given the stock fans are absolutely horrible AND low speed (as in, very poor static pressure as well as poor static pressure/dba and cfm/dba). They are cheap and regularly available at $40-50 on ebay but I think anyone going haswell should be looking at one of the higher end closed loops at the very least, ie h100i, h110/x60.

A full custom loop might be a bit excessive, but like an xspc kit, h220, or a smaller custom loop would really be perfect. With any 240/280mm rad based custom or closed loop though, you can get a huge performance gain throwing 4x high speed fans. H110 with 4x140mm yate loons, i feel, is really a great value cooler at a good price. From what I've read from trustworthy reviews, the difference between a high end 240mm closed loop like the h100i and an h110 is fairly large, ~10C, while the difference between an H110 and H220 is half that, about 5C, on a very mild overclock. Obviously an h220 is going to be better than an h110/x60, but from what I understand, I dont think it's a huge difference, and one you can minimize with 4x140mm fans vs 4x120mm fans.
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