new pc, question about recommended colling settings (cpu n fans)

Daravolo

Commendable
May 3, 2017
11
0
1,510
Hi, I will buy a new pc. What is the recommended colling settings (cpu and case fans - brand, model, etc)?

my config:
i7 7700k
Mobo Asus maximus ix hero (z270 chipset)
4x4gb ram crucial ballistix lt sport 2400
gtx1080 rog strix advanced (a8g)
case s340 elite
ps thermaltake tp grand rgb 750w full modular TPG-750AH3FSG-R
hd barracuda 2tb
ssd corsair force le 120gb

thank you in advanced.
 

Aeacus

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Since i7-7700K is hot running CPU and that without an OC, you're looking towards high-end CPU coolers. Since your case has CPU cooler clearance of 161mm, you don't have many options with air cooling. The best you'd be looking at would be Noctua NH-D14 which is 160mm tall.

Though, if you consider AIOs as well then i'd suggest going with NZXT X62 Kraken. X62 Kraken is king of AIOs and it's performance is on par with Noctua NH-D15 (king of air coolers). Sadly, your case can't fit NH-D15.

pcpp of suggested CPU coolers: https://pcpartpicker.com/products/compare/46tCmG,bqBrxr/

If you go with Noctua and for populating all fan mounts, you'll need:
2x 140mm as front intake,
1x 140mm as top exhaust and
1x 120mm as rear exhaust.

The 2x 120mm FN V2 fans that come with the case have poor performance, both in air flow and static pressure,
specs: https://www.nzxt.com/products/fn-v2

If you go with NZXT's AIO and for populating all fan mounts, you'll need:
1x 140mm as top exhaust and
1x 120mm as rear exhaust.

As far as suggesting case fans to go for, knowing if you want to have non-LED fans, LED fans or RGB fans would help.

Note 1: with Z270 MoBo, you can go with any RAM speed supported by MoBo, e.g 3000 Mhz or 3200 Mhz.
Note 2: there are far better SSDs than Corsair Force LE, e.g Samsung 850 Evo,
comparison: http://ssd.userbenchmark.com/Compare/Samsung-850-Evo-120GB-vs-Corsair-Force-LE-120GB/3484vsm68433
Also, 120GB is a bit less for OS and applications. Consider going with 250GB SSD. This way, you can put 1-2 most played games on SSD and enjoy much faster loading times, rather than playing off from slow HDD.
 

Daravolo

Commendable
May 3, 2017
11
0
1,510


@Aeacus Thank you for advices, but the x62 is a bit out of my pocket size.
I see some others.

- kraken x61 (a bit expensive yet, but in range) - good specialized reviews and user comments.
- deepcool captain 240ex (or 240 too) but have some bad reviews from users. dont see nothing bad in reviews of sites anyway
- maelstrom 240t, some ppl tell good from it, but anothers tell about serious leak issues. no many info in specialized reviews.
- corsair h110i (dont know the diff between gt and non-gt) good reviews. some noise, but nothing extreme like the h45

i'm really thinking about the h110i (but i'm stuck in the question gt or non-gt and cant dig nothing clearify about)

--------
ssd i dont will buy yet, but in Brazil is hard find the good ones, and if can, the price is a harassment.
i planning buy a good one in close future.
--------
ram is equal hard to found here, g.skill and others.
edit: I found! Memória G.SKill Ripjaws V 8GB (2x4GB) 3200MHz DDR4 CL 16 - F4-3200C16D-8GVKB
--------

p.s.: sorry for my english, my write is really poor, but i'm working this.
 

Aeacus

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For AIO, i suggest going for X61 Kraken which was king of AIOs before NZXT released the X62 Kraken (slightly upgraded version of X61 Kraken).

Here's a good article to read, NH-D15 vs 5x high-end AIOs, including X61 Kraken,
link: http://www.relaxedtech.com/reviews/noctua/nh-d15-versus-closed-loop-liquid-coolers/1

H110i GT and H110i are the same AIO. Since 2016, Corsair renamed it's AIO line;
H80i GT is now the H80i V2.
H100i GTX is now the H100i V2.
H110i GT is now the H110i.
H110i GTX is now the H115i.

The 3200 Mhz RAM is good one to go for over your initial 2400 Mhz RAM. Here's also a RAM speed comparison between same Corsair LPX RAM,,
link: http://ram.userbenchmark.com/Compare/Corsair-Vengeance-LPX-DDR4-2400-C14-2x4GB-vs-Corsair-Vengeance-LPX-DDR4-3200-C16-2x4GB/m89740vsm91021
Just look this comparison as the gain in speed between 2400 Mhz and 3200 Mhz.

Note: Your English is good. I've seen far worse though.
 

Daravolo

Commendable
May 3, 2017
11
0
1,510
in analysis, looks like both (x31 and h110i gtx) are similars in performance, x31 few more cold, h110i few more silent.
but x31 is almost 30% more expensive.
ahh, a missinfo, i think, in this comp h110i gtx specification looks wrong (120mm but in the corsair is 140mm)

i found another comp, in tweaktown

http://www.tweaktown.com/reviews/7320/corsair-hydro-h110i-gtx-high-performance-liquid-cpu-cooler-review/index.html
http://www.tweaktown.com/reviews/6803/nzxt-kraken-x61-280mm-aio-cpu-cooler-review/index.html

another one, in brazil, rma of corsair is more responsive than nzxt.

i found here in Brazil o h110i gtx for us$30,00 more cheap than x61
 

Aeacus

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In that article, the Corsair H100i V2 with 240mm rad is used and not the Corsair H110i with 280mm rad.

You can go for Corsair H110i if you like. There's little difference between it and X61 Kraken, only few degrees off from CPU temp.
 

Daravolo

Commendable
May 3, 2017
11
0
1,510


i pay for machine right now. 2-8 days arrive (just need buy da gpu and the water cooler).

I'm in doubt, the kraken is more expensive, lil bit just. in overview both are great. in my (lack) view looks like
h100i gtx is a lil better, but almost insignificant difference.

the h110i gtx (aka h115i, it's rigth?) is a pretty one.
But i think the kraken will sit pretty well with the S340 elite.
this is killing me, i'm tinking toss a coin to choice (just joking, probably).

Thank you for all support until now. was really helpful.
syl.

EDIT: I will with the kraken x61.

 

Aeacus

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Daravolo

Commendable
May 3, 2017
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1,510


hm, appears another doubt.
i think a dont tell before, i will make oc in i7 (no ever, but yet i will do)
and looking for tests a found this:
https://www.gamespot.com/articles/intel-core-i7-7700k-kaby-lake-review/1100-6446489/

"In terms of overclocks, your mileage may vary as every single CPU overclocks differently (even CPUs of the same SKU), but with our setup, we were able to push our 7700K to 4.8GHz with around 1.3 volts of power. This represents a six percent overclock, which was reflected with our six percent performance gain in our x264 test. That’s not a huge overclock, but perhaps the bigger concern is that our temperatures rose to the 90s. It even hit 100 degrees C on more than one occasion. That’s really hot, especially since our NZXT Kraken X61 water cooler is quite good."

hit 100ºC???
 

Daravolo

Commendable
May 3, 2017
11
0
1,510


hm, but it is safe, or hit 100ºC could cause some trouble for the mobo (ix hero) and for processor?
EDIT: maybe a give up run in oc mode. just use the boost. I think I should have taked the h270.
 

Aeacus

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Hitting 90ºC causes CPU thermal throttling since 100ºC is the max temp CPU is rated for. The longer you run your CPU over 90ºC, the faster your chip will burn out.
Though, it's unlikely that you'll see temps to rise over 80ºC. In the CPU reviews, CPU is intentionally pushed hard by Aida64 and/or Prime95 to see what CPU can do. While in real life, i don't think you'll use your CPU for number crunching alone.

Though, if the temps are getting high (around 80ºC) under medium load, disable the hyperthreading from BIOS. Since only a handful of games support hyperthreading, you can get smoother gameplay and lower temps with hyperthreading off.

Do note that with H270 chipset, the fastest RAM you can use is 2400 Mhz, while with Z270 chipset, you can use any RAM speed supported by MoBo (up to 4133 Mhz). Though, the most cost effective RAM would be 3000 Mhz or 3200 Mhz.

Here's also the chipset comparison: https://ark.intel.com/compare/98090,98089
(Check the "Highlight differences" box for better view.)
 

Daravolo

Commendable
May 3, 2017
11
0
1,510


When the pc arrive I will try desable it.

The mobo already has buyed (ix hero). Remeber that (max ram) recover my (almost all) well sleep capacity.

---

just waiting have the x61 in stock again to shop (probably 1 weak)

---

now about de cpu fans.
u tell which da fans include have low performance.
what u suggest. (p.s.: I found a place in Brazil, the only one until now, with a average-good reputation selling noctua fans and other brands)
 

Aeacus

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Noctua fans are one of the best if not the best fans in the world.

X61 Kraken comes with 2x 140mm FX V2 PC fans, which have,
Airflow: 42.4 - 106.1 CFM
Static Pressure: 0.36 - 1.97 mmH2O
Connector: 4-Pin (PWM)
Noise: 20 - 37 dB(A)
Speed: 800 - 2000 RPM
Warranty: 2 years
specs: https://www.nzxt.com/products/fx-v2

For replacing the NZXT stock rad fans, i suggest going with 2x Noctua NF-A14 industrialPPC-2000 PWM fans, which have,
Airflow: 107.5 CFM
Static Pressure: 4.18 mmH2O
Connector: 4-Pin (PWM)
Noise: 31,5 dB(A)
Speed: 500 - 2000 RPM
Warranty: 6 years
specs: http://noctua.at/en/products/product-line-industrial/nf-a14-industrialppc-2000-pwm/specification

For the same RPM, you'll get twice the static pressure (more power to push air through rad) with lower noise. 3 times longer warranty period as well.

But if you want the best Noctua can offer, then look towards NF-A14 industrialPPC-3000 PWM fans, which have,
Airflow: 158.3 CFM
Static Pressure: 10.52 mmH2O
Connector: 4-Pin (PWM)
Noise: 41,3 dB(A)
Speed: 800 - 3000 RPM
Warranty: 6 years
specs: http://noctua.at/en/products/product-line-industrial/nf-a14-industrialppc-3000-pwm/specification

Noctua 3000 RPM industrial fans have higher air flow, better static pressure and they are also noisier than Nocuta 2000 RPM industrial fans.
 

Daravolo

Commendable
May 3, 2017
11
0
1,510
A doubt about pessure:
need be [pressure inside case > pressure outside] or [pressure inside case < pressure outside] or [pressure inside case > pressure outside]? or dont care?

gtx 1080 a8g brings this info in ur overview:
"Max Air Flow with 105% More Air Pressure"
This meaning: pressure inside case * 1.05, or * 2.05, or it's dont chance the pressure inside case, or yet this is a missinformation from the asus marketing department?

about setting:
x61 kraken bring air inside case and rear/top taking off air for outside case?
 

Aeacus

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For cooling aspect, there are 3 different types of pressure: negative, positive and neutral.

Negative Pressure
* more exhaust fans than intake fans (or more air exits the system than drawn in)
* best cooling out of the three
* most dust enters your system
* better for blower type GPUs

Positive pressure
* more intake fans than exhaust fans (or more air enters the system than exits)
* worst cooling out of the three (can lead to stagnant air and cause hotspots)
* least dust enters your system
* better for open air type GPUs

Neutral pressure
* same amount of intake and exhaust fans
* cooling performance in the middle of positive and negative pressure
* dust intake also in the middle of positive and negative pressure

Further reading: http://www.tomshardware.com/reviews/cooling-air-pressure-heatsink,3058-5.html

Note: If you elevate your computer only 6 inches (15 cm) off the floor, then you can reduce your dust intake by up to 80%.

My Skylake build has 2x 140mm and 1x 120mm intake fans and 4x 140mm exhaust fans. With this, i have negative pressure. Since all my intake fans are filtered, the extra dust due to negative pressure doesn't enter my system.

Since hot air rises, the rule of thumb in case airflow is: front & bottom - intake; top & rear - exhaust.

Your fan and rad placement would be as follows;
* Rad in pull mode at the front as intake
* 1x 140mm top exhaust
* 1x 120mm rear exhaust

With this, and if you run all your fans at max RPM, you'll get positive pressure (since your 2nd exhaust fan is 120mm and not 140mm). For negative pressure in this setup, you need to run your intake fans with much less RPM than your exhaust fans.

Here's reason why rad in pull mode: https://www.youtube.com/watch?v=UyC3lZ5WFMk#t=3m45s

For optimal airflow, i suggest you also replace the stock fans that come with the case with Noctua fans. For 140mm top exhaust fan, you can go for the same 140mm 2000 RPM industrial fan as i suggested for your rad. For 120mm rear exhaust fan, Noctua also offers 120mm 2000 RPM industrial fan,
specs: http://noctua.at/en/products/product-line-industrial/nf-f12-industrialppc-2000-pwm/specification
or if you want, you can get 120mm 3000 RPM industrial fan,
specs: http://noctua.at/en/products/product-line-industrial/nf-f12-industrialppc-3000-pwm