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Corsair Hydro H70 CPU Cooler Review Comment Thread

Its an unfair comparison, H70("Exhaust in" setup) vs Air Heatsink. Reason being temperature reading does not take into consideration, comparing raise in temperature in components such as motherboard, ram, video card.

Air Heatsink pushes hot air to places where its easily exhaust out(removed) with high speed eg. 1900rpm: back or top of casing.
But H70 pushes hot air into case with high speed eg. 2000rpm making it(hot air) very difficult to be exhaust, increasing other component temperatures.

eg. i7 920@3.8ghz difference btw H70 & Venomous ~10C, however Air Heatsink does its best to push hot air out(back/top), H70 does its best to push hot air in(middle/front) & take in account extra 10C more dump inside, while CPU chills, motherboard, ram, video card sweats. The better H70 cools, the more the other sweats.

Simple solution (Exhaust out) setup instead. But you'll need more/fast intake chassis fans to provide air for H70, that also improves temperature readings for Air Heatsink. Which is why i said that its an unfair comparison between H70 vs Air Heatsink.
 
2c

JohnHenery said:
The reason they needed to make the pump smaller was because of the thickness of the rad plus 2 fans...
Click to expand...
I see your point, but in my imaginary H70, I would have used the single width rad like the H50 has rather than the bulky double width one. Just with an increase in the flow rate and the tubing diameter. My imaginary H70 description was obviously lacking. If bulk isn't an issue, I suspect a NH-D14 (or how about Megahalems/Fenrir) might out-cool the H70 (med fan settings for livable sound level) but I haven't found a comparison yet.
 
I bought an H70 yesterday locally @ Memory Express after reading a review on it in the latest Maximum PC issue.

I read the instructions and it says to install fans as an intake. But my Raven RV01 case has a single 120mm as an exhaust. The MaxPC article recommended to install as exhaust although their sentence wording is a bit misleading. Browsing the web and various forums (Corsair, Overclockers, etc.) reveal pros & cons for each method. I was thinking of utilizing the Raven's 120mm fan along with the H70 radiator and single H70 fan if I can. Otherwise I'll remove the original fan and install both Corsair fans. Either way it will be set up to exhaust the H70 air.

Thoughts?
 
Absolutely install your H70 as an exhaust on the Raven. The whole airflow system of your case depends on air shooting out of that opening, if you turned it into an intake you would just create a mess or turbulance in your case.

I would only follow Corsairs reccommendation if I had a case with large top fans to immediately suck the air out.
 
I got the H70 installed last night. Took about 90 minutes from removal of the Zalman cpu fan to boot up with the new cooler. Installation of the H70 was much easier than I thought it would be inside the Raven. I initially did try keeping the stock Silverstone 120mm exhaust fan in place and attach the radiator to that with one of the supplied Corsair fans. However when I ran the system this way I realized that the max rated speed of the Silverstone fan is only 950rpm. So I ended up removing that fan and used both Corsair H70 fans to achieve the rated 1600/2000 rpm ratings. At max settings these fans are indeed loud with an annoying whining pitch. At 1600rpm the whine goes away and the flow noise is minimal. I've got the fans connected to the fan controller so I can dial in the speed without using the supplied resistor cables. However, I'm already looking at getting two replacement fans that can supply the required max speed and low dB's. Also, I wouldn't mind a couple of fans that have LEDs to provide some bling inside the dark case.

As for preliminary temps, I wasn't expecting much of a change and that's exactly what I got. In fact, idle temps across all four cores are reading roughly the same or 1~2 degrees higher than the Zalman CNPS9700 I had in there before. I still have my Core i5 750 oc'd to 3.4GHz with the H70 so it's not too bad for being straight out of the box. Perhaps once the thermal paste sets the temps will improve. Or when I get better fans. I haven't bothered stress testing yet until the system settles. Overall the H70 was a fun install and is 'cool' to see inside the case. :thumb:
 
Zero82z said:
Idle temps are worthless. Those readings don't mean anything.
Click to expand...

Correct! It was just my initial impression after installing said cooler.

In my quest of getting different fans in pursuit of quieter performance...

I've come across some 120mm 2000rpm fans with *reported* dBa's of around 19~26 by Scythe, Noctua, CoolerMaster, and Silverstone. Any suggestions? Do I need to try to stick to fan speed (RPM) criteria or can I go with something slower yet produces the same CFM as the Corsair units?

I've also come across a couple of articles where the top exhaust/pull fan is mounted outside the case. I may give this a try as well.
 
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