Prolima Megahalems: A Mega Nehalem Cooler

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guises
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Post by guises » Wed Feb 25, 2009 7:12 am

ekerazha wrote:Maybe... but in that test, the TRUE (and not the IFX-14 or others) is better than the Megahalems :P
Maybe you should have another look. Here's the comparison:

http://enthusiast.hardocp.com/article.h ... VzaWFzdA==

The Megahalems edges out the TRUE at stock speeds and falls within error when the CPU is overclocked. On the next page it has a slightly better price/performance ratio as well.

The only comparisons that have the TRUE ahead are when it's paired with faster spinning fans.

nyu3
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Post by nyu3 » Wed Feb 25, 2009 10:18 pm

Imho, the HR01-plus is still the king of coolers tested at SPCR. It is as good as this new cooler at low RPM, but is lighter, smaller, cheaper, and has better availability :).

ekerazha
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Post by ekerazha » Thu Feb 26, 2009 12:50 am

guises wrote:
ekerazha wrote:Maybe... but in that test, the TRUE (and not the IFX-14 or others) is better than the Megahalems :P
Maybe you should have another look. Here's the comparison:

http://enthusiast.hardocp.com/article.h ... VzaWFzdA==

The Megahalems edges out the TRUE at stock speeds and falls within error when the CPU is overclocked. On the next page it has a slightly better price/performance ratio as well.

The only comparisons that have the TRUE ahead are when it's paired with faster spinning fans.
Here

Image

the TRUE with a 1000 rpm fan is better than a Megahalems with a 1200 rpm fan... and look at the TRUE with a 1300 rpm fan... from this review it seems like the TRUE is much better than the Megahalems with "low" (1000-1300 rpm) speed fans.

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Post by MikeC » Thu Feb 26, 2009 7:58 am

ekerazha wrote:Here...........

the TRUE with a 1000 rpm fan is better than a Megahalems with a 1200 rpm fan... and look at the TRUE with a 1300 rpm fan... from this review it seems like the TRUE is much better than the Megahalems with "low" (1000-1300 rpm) speed fans.
The chart you cite is with each heatsink using a different fans. It's not, as hardocp calls it, an apples to apples comparison.

In any case, who cares about a degree or 2? That falls within margin or error for just about every HS test system I've seen.
Mike Chin, SPCR Editor/Publisher
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ekerazha
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Post by ekerazha » Thu Feb 26, 2009 11:00 am

MikeC wrote:
ekerazha wrote:Here...........

the TRUE with a 1000 rpm fan is better than a Megahalems with a 1200 rpm fan... and look at the TRUE with a 1300 rpm fan... from this review it seems like the TRUE is much better than the Megahalems with "low" (1000-1300 rpm) speed fans.
The chart you cite is with each heatsink using a different fans. It's not, as hardocp calls it, an apples to apples comparison.

In any case, who cares about a degree or 2? That falls within margin or error for just about every HS test system I've seen.
Well... between the TRUE with a 1300 rpm fan and the Megahalems with a 1200 rpm fan there're about 7 degrees of difference (not so few), for only 100 rpm of difference... so... or that 1200 rpm fan is very low performing, or that 1300 rpm is very high performing, or the TRUE is better than the Megahalems at 1000-1300rpm (but from the SPCR review, the Megahalems should be better at low rpms) or that test is just wrong :P :?

The fact that test is Core i7 based could justify this difference between the two reviews? :?

The problem with the "apple to apple" test is that it uses a high speed fan and not a 1000-1300 rpm fan, so it says nothing about this point.

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Post by MikeC » Thu Feb 26, 2009 12:04 pm

ekerazha wrote:The fact that test is Core i7 based could justify this difference between the two reviews? :?
Maybe. Only just. It's a heat source like any CPU, and it's supposed to be 130W TDP, but we don't know just how much heat it was producing because h-ocp oc'd it. Our Pentium D950 (stepping C1 - 95W TDP) runs a bit cooler. The greater heat of the oc'd i7 920 might have pushed the TRUE120E beyond its most efficient thermal transfer zone when the fan was running slower... then you might see a significant difference.

The real question is whether h-ocp's findings are substantiated by any other review.
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Kaleid
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Post by Kaleid » Thu Feb 26, 2009 12:27 pm

Any chance of a Cooler Master V8/10/12 tests?
i5 4670k (@4.2), Asus Z87-C, Mugen 2 revB (500rpm), Club 3d 280x with AC S1+ (700+500rpm), 24GB Kingston 1600Mhz, Crucial MX100 512GB SSD, 4TB+3TB WD Green (in softm. Scythe quietdrives), Soundblaster Z, Asus MG279Q, Corsair RM650i, Antec p180 (2x500rpm slipstream)

ekerazha
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Post by ekerazha » Thu Feb 26, 2009 12:42 pm

MikeC wrote: The real question is whether h-ocp's findings are substantiated by any other review.
Yeah, unfortunately I can't find any other Megahalems VS TRUE comparison on overclocked Core i7.

ekerazha
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Post by ekerazha » Wed Mar 18, 2009 7:03 am

Another CPU coolers roundup http://benchmarkreviews.com/index.php?o ... itstart=16

Prolimatech Megahalems wins

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Post by QuietOC » Thu Mar 26, 2009 4:24 am


walle
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Post by walle » Thu Mar 26, 2009 4:51 am

Rumour has it that some former employees at Thermalright decided to go solo, either way; it seems to be a fine heatsink.

nyu3
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Post by nyu3 » Thu Mar 26, 2009 5:41 pm

ekerazha wrote:Another CPU coolers roundup http://benchmarkreviews.com/index.php?o ... itstart=16

Prolimatech Megahalems wins
With the High Speed Yate for Loonies.... doesn't say anything about the low noise performance. Tbh the Mugen 2 looks better for low noise (cheaper) or HR-01 plus (lighter and smaller).

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Post by jmke » Sat Apr 18, 2009 3:02 pm

hey MikeC, nice review !
I just finished testing the Megahalems, my findings are scarcely similar to yours :)
with very high CFM fan it outperforms the TRUE, at very low CFM it outperforms the TRUE, between those, it's a mix.
[url=http://www.madshrimps.be/gotoartik.php?articID=389]160+ CPU Cooler Comparison Database[/url]

ekerazha
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Post by ekerazha » Thu Apr 23, 2009 11:42 pm

nyu3 wrote:
ekerazha wrote:Another CPU coolers roundup http://benchmarkreviews.com/index.php?o ... itstart=16

Prolimatech Megahalems wins
With the High Speed Yate for Loonies.... doesn't say anything about the low noise performance. Tbh the Mugen 2 looks better for low noise (cheaper) or HR-01 plus (lighter and smaller).
This is with Scythe S-FLEX 1200 rpm

Image[/b]

ehird
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Post by ehird » Mon May 04, 2009 4:13 pm

Anyone had success running an i7 on these without a fan?

Ricyn
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Post by Ricyn » Thu May 21, 2009 8:08 am

This sucker is BIG. I bought two, one for my mATX system and one for my 4U system. It doesn't fit in the 4U case! I fit it on a dual-core celeron, so it's not exactly facing a big challenge, but so far running passive.

It does fit in my mATX case (yay for 120mm fan cases).

(If anyone in the DC area wants the still-sealed one I have, I'd prefer *not* to return it...)

kaange
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Post by kaange » Thu May 21, 2009 7:36 pm

Hmmm, down here, the Megahalem is the same price as the TRUE for 775 and about 20% cheaper than the TRUE for 1366

Stori
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Post by Stori » Mon Jun 01, 2009 12:05 am

I am very impressed with the ease of install for this Cooler. I have it currently in an Antec P180 mini case. Installed the MB and attached the Cooler last.

ATWindsor
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Post by ATWindsor » Sat Jul 04, 2009 12:28 pm

Does the cooler clear the ram in height? I am considering buying this sink, but i will have all 6 ram slots occupied in a MSI Pro-E, so i need the fan to claer the RAM. Anybody have any experience with this?

AtW

ATWindsor
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Post by ATWindsor » Mon Jul 13, 2009 1:31 am

ATWindsor wrote:Does the cooler clear the ram in height? I am considering buying this sink, but i will have all 6 ram slots occupied in a MSI Pro-E, so i need the fan to claer the RAM. Anybody have any experience with this?

AtW
Well, to answer my own question, the fans is over the ram-slots, but with standard height ram it clears.

AtW

Shamgar
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Post by Shamgar » Sun Jul 19, 2009 8:41 am

MikeC wrote:
ekerazha wrote:Here...........

the TRUE with a 1000 rpm fan is better than a Megahalems with a 1200 rpm fan... and look at the TRUE with a 1300 rpm fan... from this review it seems like the TRUE is much better than the Megahalems with "low" (1000-1300 rpm) speed fans.
The chart you cite is with each heatsink using a different fans. It's not, as hardocp calls it, an apples to apples comparison.

In any case, who cares about a degree or 2? That falls within margin or error for just about every HS test system I've seen.
Who cares? People whose lives and egos depend on temperature graphs, that's who :).

Boy1: Hey, my HS is better than your HS!
Boy2: No, it's not!
Boy1: Yes, it is!
Boy2: No, it's not!
Boy1: Is too!
Boy2: Is not!
A few days later...
Boy1: Is too! Check out this [random] review. By a floor-wiping 0.025 degrees! You are rightfully pwnd! :roll: :lol:

Vibrator
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Post by Vibrator » Sun Jul 19, 2009 5:50 pm

ekerazha wrote:
MikeC wrote:
ekerazha wrote:Here...........

the TRUE with a 1000 rpm fan is better than a Megahalems with a 1200 rpm fan... and look at the TRUE with a 1300 rpm fan... from this review it seems like the TRUE is much better than the Megahalems with "low" (1000-1300 rpm) speed fans.
The chart you cite is with each heatsink using a different fans. It's not, as hardocp calls it, an apples to apples comparison.

In any case, who cares about a degree or 2? That falls within margin or error for just about every HS test system I've seen.
Well... between the TRUE with a 1300 rpm fan and the Megahalems with a 1200 rpm fan there're about 7 degrees of difference (not so few), for only 100 rpm of difference... so... or that 1200 rpm fan is very low performing, or that 1300 rpm is very high performing, or the TRUE is better than the Megahalems at 1000-1300rpm (but from the SPCR review, the Megahalems should be better at low rpms) or that test is just wrong :P :?

The fact that test is Core i7 based could justify this difference between the two reviews? :?

The problem with the "apple to apple" test is that it uses a high speed fan and not a 1000-1300 rpm fan, so it says nothing about this point.
The thermalright used one of thermalright's own fans, which are rebranded S-Flexes.
S-Flexes are some of the best 25mm thick 120mm fans out there.

Chances are the fan Prolimatech sent for testing isn't as good

josephclemente
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Post by josephclemente » Sun Jul 19, 2009 8:05 pm

I just changed from a Thermalright Ultra-120 eXtreme to a Prolimatech Megahalems. I am rotating the TRUE to another computer.

At both idle and load, my CPU temperatures are 100% exactly the same as they were with the TRUE under the same ambient temperature. This is with a Scythe Slipstream 800 fan fixed at the full 12 volts.

Interestingly, the backplate of the TRUE is the same as the Megahalems. I didn't know this until I had already removed the motherboard. Only minor difference is the TRUE backplate had an additional plastic film on it.

Ease of installation seems to be about the same. The Megahalems is a little better because the backplate is mounted with the thumbscrews first before the heatsink is mounted. It wasn't really so bad on the TRUE, I would loosely mount the spring-loaded screws to hold the backplate in place temporarily before installing the motherboard. The fan mounting is definitely easier on the Megahalems thanks to a better clip design.
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halcyon
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Post by halcyon » Tue Jul 21, 2009 6:47 am

I've scoured the web and it seems that Megahalems and IFX-14 change places depending on thermal load, amount of airflow, test setup and probably most of all, margin of error.

Some samples:

http://www.silenthardware.de/2009/07/04 ... gleich/14/

http://www.meisterkuehler.de/content/pr ... e-393.html

http://www.madshrimps.be/?action=getart ... rticID=389

http://www.xbitlabs.com/articles/cooler ... html#sect0

http://www.overclock.net/air-cooling/49 ... -high.html

I think more worthwhile considerations are fitting (esp. RAM), price, availability and the mounting mechanism.

I personally dislike coolers that require the whole motherboard be removed every single time one removes the heatsink. I'm not sure about IFX-14, but at least Megahalems does not require mb removal, once the backplate mechanism is in place.

chrisah1
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Post by chrisah1 » Mon Jul 27, 2009 5:36 am

Any chance of actually doing a 2fan test and adding it to the review as you did with the Mugen2???

I realise that people are posting comparisons, but well I trust the methodolgy you guys use.

I'm currently deciding between the Megahalems (great mounting system, good performance, but high cost), the Cogage, and the mugen 2 (less than ideal mounting, good performance, cheap). It's a really tough choice.

Then don't even get me started on what fans to choose!!!
one or two 500rpm - 2000rpm jobbies. or 2*1200rpm fans.

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Post by reddyuday » Sat Aug 08, 2009 7:30 am

AZBrandon wrote:That's an amazing performance, but comes with an equally amazing pricetag. You can buy a pretty good entry-level processor for just what this heatsink costs, even without a fan!
The way I look at it, the cooler has a much longer 'case life' than the processor. In three years, your processor would be worthless whereas the cooler will continue to do just the same job. So I don't mind spending a little bit extra for the cooler.

In any case, TRUE and PMH are selling for basically the same price right now.

Uday

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Post by jmke » Sat Aug 08, 2009 7:40 am

reddyuday wrote:In three years, your processor would be worthless
not at all; single threaded performance has pretty much come to a halt; we don't need 8 core CPUs, which is what you'll get in 3-years; we won't see 5ghz CPUs, which is what we need to see performance boosts... so a CPU bought today will last you a while without performance issues;)
[url=http://www.madshrimps.be/gotoartik.php?articID=389]160+ CPU Cooler Comparison Database[/url]

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Post by reddyuday » Sat Aug 08, 2009 3:14 pm

jmke wrote: not at all; single threaded performance has pretty much come to a halt; we don't need 8 core CPUs, which is what you'll get in 3-years; we won't see 5ghz CPUs, which is what we need to see performance boosts... so a CPU bought today will last you a while without performance issues;)
The only law I know of for the future of computing is that nobody manages to predict it right :)

What you are saying is that the processors won't get any faster. Agreed. But the chip densities are continuing to increase in line with Moore's law, which means that more cores will get on to the CPU. The software developers know the challenge and they are currently working on getting software to do things in parallel. So, sooner or later, enough processing will get done to occupy all the available cores, and people will be asking for more.

Your Core i7 may not become worthless in terms of its usefulness. But its monetary value will go down nevertheless. Who will buy 4-cores when they can get 16 on the market?

halcyon
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Post by halcyon » Wed Sep 02, 2009 10:10 pm

Now available in the ever-so-trendy ultra-cool-black version with a new trendy name Mega Shadow!

http://www.legionhardware.com/document.php?id=853&p=3

P.S. The performance appears to be exactly the same - it's just that with the cool new name and paint job, you can can pay more for it :)

highstream
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Re: Prolima Megahalems: A Mega Nehalem Cooler

Post by highstream » Wed Mar 28, 2012 12:34 am

It might be worth adding now to the end of the article that Rev. C comes with an AM2/AM2+/AM3 mounting kit (with Rev. B it has to be purchased separately).* There is a potential incompatibility between Rev. C and some AM2 motherboards, though, which is explained at http://www.prolimatech.com/en/products/ ... 172&page=1.

* See Details at http://www.newegg.com/Product/Product.a ... _-35242008
Gigabyte GA-Z68X-UD3H-B3 rev. 1.3
i7-2600K w/ Prolimatech Megahalems rev. C
8gb RAM (GSkill 2x4gb PC 2133)
Sapphire Ultimate HD7750
Kingwin LZP-550 PSU
Plextor M3 Pro 120gb SSD & Seagate 1T & 3T, WD 750gb HDDs
Cooler Master Elite 335 case
Scythe Kama Flow 2 120x25, 900 rpm case & CPU fans (2)
IBM Model M keyboard (PS/2), Nexus SM-9000 mouse
Dell U2412M monitor

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