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The fans supplied with the Noctua are 50-60 CFM units. Plus they are 25mm and that hurts air pressure a lot compared to thicker ones.
My friend is getting a 72.5 average at 1.31v with a Megashadow with 2x1.600 rpm Slip streams at 22 ambient. Honestly the X is looking pretty weak. Better luck next time.
Well for one the average on the last test was 70 on the max temps. You should go and recheck the specs on those noctua fans the 140 on high is 100 cfm. I'd link it but you aren't interested in a meaningful conversation. As for your friend lol have him drop by and link a result or post one or it didn't happen.
You're mistaking m3/h with CFM. Its impossible for a 1200 rpm fan to output 100 CFM even if its 140mm.
http://noctua.at/main.php?show=produ...3&lng=en&set=1
As for static pressure the Triebwerk has almost triple the value of the Noctua. I'm all for a meaningful discussion but if you're jumping on the fanboy wagon I'm gonna leave you with your heatsink.
Here are a few screens:
Noctua 2x1600 rpm 21 ambient:
http://www.lab501.ro/forum/attachmen...1&d=1258054831
Noctua 2x800 rpm 21 ambient:
http://www.lab501.ro/forum/attachmen...1&d=1258054831
Just throwing my 20 cents... different CPU samples will show different temps and difference can even be 5C in the same setup with same cooling and then add the different ambient temps of different setups we're talking about an additional ą3 C and besides that lets not forget the inaccuracy in software sensors which could also differ by several degrees. So the only way to compare the performance of a cooler is to do it on the same CPU in the same setup under same cooling conditions and the only factor you change is the cpu cooler itself. Otherwise it's just useless comparisions. With how close the heatsinks have come to each other today due to the designs are getting rather optimal now so it's difficult to improve, you really have to have accurate test methods.
Umm...both tests are using different cpu overclock and voltage. That's not a comparable test. Am I missing something? :shrug:Quote:
Originally Posted by halfwaythere
I have received my Venomous X and will conduct tests comparing to my Rev C 120 with same fan, voltage etc to see if there really is a difference. :)
Better yet, compare it with the Megahalem and the D14 :p:Quote:
Originally Posted by theonlybabyface
There is a little bird chirping in my ear about testing some of top dawgs of the Air Cooling world, but I want to hear from you guys on whether me throwing my hat in to the ring is worth it.
I'd test the Air Coolers much the same as CPU blocks, but obviously without the water sensors. What I had in mind was 2 or more sensors on both sides of the HS, giving Air In (Ambient) and Air Out temps, also giving Air Capacity used. However, I would still have to rely on the DTS sensors on the chip (i7 920 D0 of course) for calculating Air to Core Deltas. And yes, 5 mounts standard and each mount would run for 2 hours giving us 105 minutes of data for comparison per mount.
Thoughts/comments/suggestions?
Great / looking forward to it / start asap! :up: :DQuote:
Originally Posted by skinnee
halfwaythere is right. Noctua NF-P14 just does a little bit more than 60 CFM. Read units before.Quote:
Originally Posted by Elloquin
And if people use different fans , CPUs and setups then itīs going to be difficult to decide a winner.
A review should always use the same setup and same fans in order to decide which one is really the best heatsink.
Hmmm.Quote:
Originally Posted by skinnee
Like the sound of this. If you happen to need say a xiga 1284 lapped, True 120 lapped rev 1?, True 120 Black lapped rev 2? and a megahalems lapped for the compare I think I can help you out.
The OP asked for some Noctua results. I already stated earlier that any comparison done on different systems is pretty much pointless but you can get an idea about the cooling capacity of a product.Quote:
Originally Posted by theonlybabyface
And if one can handle 1.4+v with a couple of 1600 rpm Scythes I think you can say that product is pretty good.
The problem here is that the only thing new about the Venomous is the mounting system otherwise its the same old TRUE only lighter. I'm not sure what they went for: its still too dense to be any good at low rpm and its too light and small to be any better at high rpm. I guess some of us expected a groundbreaking heatsink that would really challenge the likes of Noctua and Prolima.
http://i50.tinypic.com/ribyat.jpgQuote:
Originally Posted by skinnee
I'd also love to see 3 different fan setups per setup:
(all dual fan push-pull)
-silent (~800rpm, I think that's what my ZM-F3 does at total silence)
-medium like a GentleTyphoon 1850 or a Sflex 1600, or even ZM-F3 full speed
-high, like San Ace H1011
Quote:
Originally Posted by halfwaythere
I'm not sure if 86C after ten minutes and a screen shot of a 15 minute test is "Handling it". Call me skeptical at best.
I'm also interested in your conclusion: " I'm not sure what they went for: its still too dense to be any good at low rpm and its too light and small to be any better at high rpm. " Is there enough testing published to conclude this?
Actually Venomous X has more space between its fins than the TRUE so it should be a lot better for low rpm. TRUE Rev C is great with low RPM fans anyways.
Temps between 15-60 minutes (for example) should change a little bit, but mostly because the whole system and case temp increases.Quote:
Originally Posted by lackobreath
About the conclusion, just based on the fact it has certain number of fins, enough to make it easy for some regular fans but canīt get too much extra with high rpm fans.
All I'm saying is I don't expect anything groundbreaking after the marketing hype. Sure the new mounting system is nice but thats too little too late. In the mean time other companies have stolen the show and TR has to play catchup and they don't seem to know what they are doing. Some of us were expecting something else.
And if 86 seems a lot I'm curios to see what other air cooling setup can do it better at 1.4+v on a regular i7, not the special review ones that are doing 60s at 1.45v with any crappy cooler, and a couple of 1600 rpm Scythes.
Just ran a quick test. Swapped in my Venomous X with same fan as used on 120E (default Thermalright) and looks like my load temps are down about 8-10 C. Looks like we have a winner....
Sounds as if something was horribly wrong with your last setup. I'm sure it's a great cooler but not that great.Quote:
Originally Posted by theonlybabyface
Why isn't it that great?Quote:
Originally Posted by th3pwn3r
because 8-10 difference between two 'high end' air coolers is similar to the difference of air and water setupsQuote:
Originally Posted by lkiller123
Well, it's default TRUE. Maybe the base of the cooler is just crap.
Who uses a stock TRUE? Use the X mounting system on a lapped TRUE and I bet the difference will vanish. Or even better compare it with very good setup out of the box like Megahalems and Noctua.
Using core 2 duo for testing a heatsink is making a story ^^, I dont trust that. Only when using core 2 quad or core i7 with high clock speed, then I trust.
Why would you not trust Wolfdale sensors? What makes i7/i5 any more "accurate" on temperatures?Quote:
Originally Posted by nullface
C2D sensors are known to be off.