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Prolimatech Megahalems Rev B. Intel CPU Heatsink (LGA 775 / 1156 / 1366) (AM2 / AM2+ / AM3**)

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Average Customer Rating:	5.0
Brand:	Prolimatech

Product Categories

CPU Coolers; Computer Heatsinks

Product description

The revised Prolimatech Megahalems Rev B. Intel CPU Heatsink now comes LGA 1156 ready and contains 2 sets of wire fan clips for optimal performance out of the box. Due to the originals very high praise from multiple review sites as well as winning the Editor's Choice Gold Award from [H]ard|OCP Enthusiast this cooler is sure to please. When it comes to air cooling this cooler cannot be beat! This heatsink has been carefully engineered for low to medium speed 120 mm fans producing around 57 CFM - fans in this range are quiet at under 26 dBA - but this heatsink still cools better than the competition! Six heatpipes pull heat up to the fins and away from the CPU. The heatsink ships ready to mount to either Socket LGA 775 or the latest Socket LGA 1366 and LGA 1156! **Sockets AM2, AM2+ and AM3 require optional retention hardware The tower type coolers have been the mainstream in the CPU cooling market for quite some time now, but upon closer inspection you start to notice that designs and engineering can only go so far as they slowly come to a bottleneck. After a while they all start to look the same with performance not worth popping the champaign. This is where Prolimatech comes in. We are here to challenge all possible odds and stray away from the norm. With that focus in mind comes the new Megahalems, tower CPU cooler. Never before seen are the new lows in temperature produced by an intelligent design of low air flow resistance with unmatched performance to boost; perfect for the true overclockers in all of us **PLEASE MEASURE YOUR CASE TO INSURE THIS HEATSINK WILL FIT BEFORE PURCHASING!! WILL NOT ACCEPT RETURNS UNLESS ITEM IS DEFECTIVE!**

Features

Minimal air resistance between fins allowing best balance between noise and performance in range of 800-1200RPM

Heatpipes are lined up in a straight line to prevent air back draft allowing air to easily pass through the heatsink body

Wide fins with mathematically calculated thickness to maximize best air-to-surface cooling rate

Uniquely designed, easy-to-install socket 775 and 1366 retention mechanism to increase cooling ability.

Easy to apply, high grade thermal compound, a perfect sidekick to all Prolimatech heatsinks

Customer reviews

« Its Large and In Charge! »

The Megahalem is an awesome great looking cooler, and I would highly recommend it for the enthusiast or power-user hoping to keep their system cool and quiet. I use this cooler with no CPU fan and it works well with my rig non-overclocked. If you are looking to over-clock (using a CPU fan) this thing would work great also. My rig under load never goes over 35C and my case fans provide enough air flow to keep things cool and quiet.

With my Antec 900 case it fits in there nice, but there is little clearance between the top of the CPU cooler and the side of the case, but that's fine as it works and there is space to get the case sliding lid back on fine.

Here is my rig:
Antec 900 Case
Asus P7P55D motherboard
Core i5 750 Quad-core socket 1156
Megahalem revB CPU cooler
OCZ 4GB memory DDR3-1600 2x2GB CL8
ASUS EN9600GT GeForce 9600 GT 512MB (fanless)
OCZ 450Watt 80+ Power supply with 140mm fan

Rating: (5 out of 5) @ 2010-02-28

« Fantastic »

It's big. Almost big enough I gave it a 4 star review, but it works so well I couldn't subtract any points from this. I have an i7-920 on an Intel DX58SO motherboard, and I've got tall Corsair Dominator memory sticks. Because of the tall heatsinks on the Corsair RAM, I had to orient the heatsink in the non-classic direction. (It's blowing air from my video card down towards my power supply, as opposed to blowing from front of case towards back of case.) It didn't seem to affect performance. My idle temps dropped from 50C to 36C (122F to 97F). My fully loaded temps dropped from 77C to 60C (171F to 140F). Highly recommended unless you have a little case or its too packed in there.

Rating: (5 out of 5) @ 2010-02-19

« Fantastic! »

This was a breeze to install (15-20 mins) and works wonderfully (reducing temps by more than 30oC over Intel i7-920 stock cooler)! I read many of the reviews on Newegg and elsewhere about how tricky this was to install, how drilling new holes would be necessary, removal of the mobo ould be required even with the CoolerMax HAF922 case that I'm using, and how tight the install would be limiting access to memory,no 2nd pair of fan clips, etc, etc. Despite thse warnings, I bought the Megahalem because of the excellent reviews it has gotten once properly installed.

My problem was that the stock cooler wasn't nearly good enough even for modest overclocking under high load. The HAF922 case has the nice feature that it provides access to the backside of the mobo near the chip -- it was easy to remove the stock cooler, clean up the thermal compound and proceed with mounting the Megahalem. Just follow the well-diagrammed directions carefully. Of course, I took the precautionary step before purchase of comparing the dimensions of the mobo the mechanical drawing of the Megahalem provided by Prolima on their website, so I could check clearances. No installations issues or problems, just a bit of care to mount the 'strip adapters' in the right direction so that the mounting plate fit. In fact the hardest part of the install, was attaching the 2 pairs (yes, 2 pairs are provided not 1) of fan mounting clips and fans. Bottom line is that my i7-920 is now running at least 30oC cooler than before and all fits well even in the mid-tower.

Rating: (5 out of 5) @ 2010-02-17

« This thing is seriously BIG »

I did extensive research on CPU coolers January 2010 for my new i7 rig I was building. [...] showed that the Megahalems outperformed all other air coolers on the market at that time. I was fully unprepared for the size of this cooler. MAKE CERTAIN THAT YOU MEASURE THE HEIGHT AVAILABLE IN YOUR CASE! Clearance is an issue but it worked fine in my full ATX case. Also make sure you buy accompanying fans of the correct size. The reason i'm writing this is because the otherwise flawless workmanship had one catch. No other reviews brought this to my attention, so it must not be common. There is a cross-member that physically holds the cooling tower to the motherboard backing plate, that two spring loaded screws go through. The holes in the plate were not drilled all the way through. I highly recommend this cooler, but if you buy it, do a dry fit test first. if your thumb screws do not move freely just use a hand drill and take the step out of the holes so the springs engage the cross-member.

Benchmarks for this cooler
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Rating: (4 out of 5) @ 2010-02-13

« Fantastic Heatsink »

This brought my CPU core temps down to 33C idle on a Q6600. They used to be 48C idle. They core temps have reached a max of 47C under full load! I would highly recommend this heatsink, especially for overclockers. The installation was a little confusing but it is very easy and secure.