Overclock.net › Forums › Cooling › Air Cooling › Air CPU cooler for i7 4770K (4.5GHz, 1.25V)
New Posts  All Forums:Forum Nav:

Air CPU cooler for i7 4770K (4.5GHz, 1.25V)

post #1 of 12
Thread Starter 

I have some basic questions regarding cooling a Haswell's i7 4770k, so I'd appreciate some help as I'm a bit stuck. I would very much like to buy an air cooler which would allow me to overclock to a stable 4.5GHz (1.25V) but while maintaining good temperatures.

As you may know, Haswell reaches very high temperatures and that's not exactly great about it.
So I'm trying to find a cooler which would change that, and I believe that Noctua NH-U14S is the way to go, but if there's a better option, I'd like to know about it.

Note: I own Corsair Vengeance high profile RAM cards (2x8GB 1600MHz).

I can move the memory cards to 2nd and 4th slots, increasing the selection of compatible coolers by a small ammount.

Cooling questions:

1.Noctua NH-U14S (dual fan setup) vs. Hyper 412 Slim, which one you'd prefer & why ?
2.Is there anything you'd recommend over these two ? If yes, please explain why as well.
3.Thermal compound, which one would you recommend for max. efficiency ?
4.Could you estimate "stable" temperatures for Hasswell (i7 4770K) overclocked to 4.5GHz at 1.25V ?
5.I've heard many people using the term "push-pull", could you please tell me more about it ?
6.Is it a good idea to turn 1 CPU cooler's fan to face the exhaust system fan ? (Top side system fan, 200mm)
7.If you answer all these questions, you're awesome and thank you.

Without any doubt I would go with Thermalright Silver Arrow or Noctua ND-14, but these are off the table due to high profile RAM.

Been thinking about a liquid cooling solution, but then I started reading reviews which made me change my mind due to huge ammount of problems, such as leaking / instability / noise / pump failures / short lifespan / overpriced / etc. and I simply cannot afford such risks, so I guess that's off the table.


Motherboard: Gigabyte Z87X-UD3H
Graphic Card: EVGA GTX 780
Processor: Intel i7 4770K
Memory: Corsair Vengeance 2x8GB 1600MHz
Hard Disk: Western Digital Caviar Black 2TB
Solid State Drive: Samsung 840S 250GB
Power Supply: Corsair TX750W
Case: Thermaltake Chaser MK-I

Thanks for the time reading this & respect to every constructive reply!

post #2 of 12
1.Noctua NH-U14S (dual fan setup) vs. Hyper 412 Slim, which one you'd prefer & why ?
NH-U14S is much better cooler and quiet.

2.Is there anything you'd recommend over these two ? If yes, please explain why as well.
If NH-U14S fits in your case it's as good as any.

3.Thermal compound, which one would you recommend for max. efficiency ?
Noctua supplied paste is quite good. Just use it.

4.Could you estimate "stable" temperatures for Hasswell (i7 4770K) overclocked to 4.5GHz at 1.25V ?
No. Sorry

5.I've heard many people using the term "push-pull", could you please tell me more about it ?
Using 2 fans on cooler; front one "pushes" air into cooler and back one "pulls" air out. You might gain 2c with second fan.

6.Is it a good idea to turn 1 CPU cooler's fan to face the exhaust system fan ? (Top side system fan, 200mm)
Please explain. Do you mean face the cooler intake toward case exhaust? headscratch.gif
post #3 of 12
you will need to delid your cpu. and I would recommend Silverstone Heligon HE01
Wanted: Wanted: R9 Fury / R9 Nano / RX 480
$200 (USD) or best offer
Wanted: Wanted: R9 Fury / R9 Nano / RX 480
$200 (USD) or best offer
post #4 of 12
HE01 is good cooler.
Delidding is an option but remember it voids your warranty... and sometimes delidding goes goes wrong leaving owner with a dead CPU. wink.gif
post #5 of 12
Thread Starter 
Hey, my appolegies for the late response! You got the question right, I was wondering what would of happen if I turned the CPU's cooler's intake fan to face the exhaust system fan. But now that you explained the push&pull term I believe that it would be wiser to simply turn the CPU exhaust fan to face system exhaust fan for better effect. Am I right ?
post #6 of 12
Indeed. Think of airflow through your case as a river or rivers of air coming into case cool, flowing through components (CPU & GPU most important) and flowing heated air out of case.

Case cooling it probably the hardest part of most builds... and most neglected by most builders.
You might find this helpful. I post this basic but by no means complete tutorial often. It's a work in progress : Warning: Spoiler! (Click to show)
There is much more to cooling than good cases and good CPU / GPU coolers. Modern GPU's make more heat than CPU... and getting that heat out of the case can be a challenge.

Setting up the case to cool properly is the hardest and most time consuming part of a build... And the most neglected by most builders.

We need at least as much volume of air flowing through the case as the total of CPU and GPU fans flow through their coolers. If we do not have as much air coming into and going out of case as CPU and GPU coolers are passing through and heating up than some of that heated cooler exhaust has to be re-circulated through the coolers. This means the cooler run hotter because the air going through them is hotter.

Cases, especially those with filters, usually benefit from fans with higher static pressure ratings than stock fans... "cooler" fans instead of "case" fans.
Intakes are typically more restricted than exhaust; air filter, more restrictive grill, HDD cage, etc.
I prefer more intake than exhaust. And don't confuse number of fans with amount of airflow... or airflow with airblow

airflow is flowing cool air from intake to component and flowing hot air from component out of case without the hot air mixing with the cool air.

airblow is lots of fans blowing air with some of hot air from components mixing with cool air making it warmer resulting in warm air not cooling components as well as the cool air will.

Putting fans in case as intake and/or exhaust is only the first step. These fans only move air in and out of case.

This does not mean heated air is not mixing with cool air.

Nor does it mean cool air is going to where it is needed.

Getting the air to flow inside of case properly is even more important. We still need to manage where the air flows inside the case. We can do this several ways; deflectors, cooler intake fans, exhaust fans, removing vent grills, using fans with higher pressure/airflow, building ducts to or from CPU/GPU cooler, etc.

Using a remote temperature sensor to monitor what air temps are is the key to finding out where the cool air is flowing and knowing heated air is not mixing into it. By monitoring this we can than make changes to get airflow the way we want it.
post #7 of 12
Thread Starter 
Yep, you're right about certain things being neglected. That's why I'm trying to devote enough attention to each aspect of putting things together right. t

Also, you seem to know quite a bit when it comes to cooling, so I was wondering is it okay if I ask you couple more questions in case something goes wrong ?

I'm currently on a vacation with fairly limited resources, so "investigating" certain cooling techniques and component's specifications is quite hard at the moment.

By the way, there is another thing walking through my mind.. it's about graphic card's cooling. Long story short, I am going to buy a GTX 780 (EVGA probably), but

it's a bit hard to decide between Titan styled cooling and ACX cooling. I'm not sure which one is actually better when it comes too cooling, all I know is that

Titan styled cooling is a blower type of cooling, meaning it's dependent on the quality of airflow within a case. While ACX supposedly has very much superior

fans, 700% increased durability and lifespan, fans are lighter yet stronger etc. (On a side note, Titan styled one looks absolutely badass lol). But there is one

thing that makes me a bit sceptical about it.. supposedly it's absolutely superior ever any type of cooling, yet has the same price tag like Titan styled cooling.

And there were a couple reviews mentioning some weird iddling noises. So basically, I'm stuck in here as well lol. I'm very much attracted to Titan thing, but

I don't want to make a wrong move and choose the card with worser cooling aspects over the "superior" one. This is a bit offtopic, but hey, it's still about cooling lol!
post #8 of 12
You got it right
* GTX 780 Titan is 'reference' cooler. Has a blower fan trying to push air from fan through cooler and out back. This helps keep the heated cooler exhaust from fixing with cool air coming into case... but run hotter and much noisier.
* GTX 780 ACX is multi-fan blowing more air into bigger cooler area where it turns when it hits the PCB and goes every direction. This means it's almost impossible to keep the heated cooler exhaust from mixing with cool intake air coming into case and therefore much harder to supply the fans with cool air. Having more fans & more cooler area makes it cooler and quieter... so the air temp going in can be a few degrees warmer and still have cooler GPU temps.

A case with decent cooler and a little testing will allow a ACX run cool and quiet.

My modified Define R2 bottom & back vent grilles removed w/ 3x TY-140 CPU PWM control, i7 980, TC14PE w/ 2x TY-143 fans, HD 5770 Silent Cell; idles 24-30c & load CPU = 44-48c & GPU = 50-58c. Silent at normal load and can hear it when working but have to listen. wink.gif Replaced noisy TX650 with Enermax Modu84+. Caster base to give better airflow to bottom fans and easier moving on floor. Now have GTX580DC2 but no pics.

Back vent cut out and cooler exhausting out back w/ duct to control heated exhaust flow

Define R4 w/ 3x TY-147's 2x front modified square to fit w/ CPU PWM control, 1x bottom intake w/ GPU PWM control, unused PCI slots open, case raised with 45-50mm clearance, VTX3D Radeon HD 7950 X-Edition V3 w/ cover removed w/ 2x Arctic F12 TC case fans mounted is 50-60c, ultra settings, 60fps unless particularly detailed cut scenes, was 70c with stock shroud & fans.
CREATOR: gd-jpeg v1.0 (using IJG JPEG v62), default quality

Thread of Corsair 540 w/ PWM controlled case fans
Edited by doyll - 9/16/13 at 5:48am
post #9 of 12
As the disgruntled owner of a loud and hot EVGA ACX SC, PLEASE go with the Asus DC2 for the same price. Check hardware canucks for the review that compared them and xbit labs for the noisy ACX cooler comments. That's 3 sources for you. smile.gif

Good luck with your Haswell upgrade...my 4670K hits 70C in AIDA64 @ 4 Ghz w/ 1.15 V on a Thermalrught Venomous X + Scythe SFLEX E 1200 RPM cooler!

---LG G2 via Tapatalk 2---
post #10 of 12
Thread Starter 
Sorry guys, lost the internet on a vacation. Got back to my lovely throne now lol

Doyll, I can without any doubt say that both your answer and the topic you created are awesome and very informative, but let me be honest and say that
I didn't understand a thing lol biggrin.gif I very much lack certain hardware knowledge so I'm just now on my way of learning things.. slowly I'm affraid lol.

Jodiuh, thanks for the insight and the sources, been pretty helpfull! I think I'm gonna go with non-superclocked reference card after all. It reaches up to
84°C but seems to be handling it fine.. kinda high, but EVGA's support is unmatched from what I have seen so far.

I guess I can change the cooling to something more appropriate should it be necessary.
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Air Cooling
Overclock.net › Forums › Cooling › Air Cooling › Air CPU cooler for i7 4770K (4.5GHz, 1.25V)