Enzotech Ultra-X

The Ultra-X comes in a matte black and silver package with a side window that highlights the heatpipe cantilever.


All the information you need to make a buying decision is on the box - specifications, included accessories, CPU compatibility, etc. The only thing missing is a quick trip to AnandTech to check out how the cooler compares to others in cooling efficiency. Inside the package is a clear plastic molded clamshell that protects the individual components.


The cooler is designed around a high output down-facing fan blowing across a large cantilever of horizontal heatpipes cooled by vertical aluminum fins. The fin array is enclosed on all sides. Heatpipes extend from a base that is also cooled by another small heatsink to the heatpipe cantilever


Enzotech prominently features the mirror-finished copper base in all their literature. They claim the base is machined to 0.0003 per inch run out, "which optimizes surface contact and maximizes thermal conductivity performance". The mirror finish is certainly an excellent execution of machining. Our performance tests will better indicate whether it really makes any difference in performance.


The Ultra-X fan is a stock Delta fan controlled by a variable speed rheostat that can mount in an available card slot. This allows control of the fan speed even if the case is closed. Many of us remember Delta fans from AMD socket A days where the Delta delivered incredible air output at the price of extreme noise. This Delta claims output as high as 82.7 CFM at a less than quiet 38.5dbA. We will be measuring noise performance and reporting it compared to other tested coolers on p. 7.


Accessories include a mounting base and spring loaded screws for Intel socket 775 and a complete base, cage and clip for AMD sockets. Mounting of either Intel or AMD processors is very simple. Also included is a small syringe of premium Arctic Silver 5, and very clear installation instructions. Mounting is simple and very secure with either 775 or AMD. However, you will have to remove the motherboard to install the cooler - at least on Intel 775. While the motherboard is removed to place the base through the 4-holes in the 775 motherboard, go ahead and mount the spring screws. It can be really difficult to try to tighten these after the board is remounted.

Should you require further help with the installation process, Enzotech provides very clear installation videos for both Intel and AMD in the Ultra-X section of their website. While the Ultra-X is a very heavy cooler at 835g it is good to see strong and effective installation options available with the cooler. Ultra-X was very secure on both 775 and AMD sockets, providing peace of mind when mounting this heavy cooler on an expensive motherboard.

The Enzotech Ultra X is one of the more expensive coolers we have tested. Web prices ranged from $63 to $65. Enzotech distributes their products through specialty cooling shops, so you will not find them at volume resellers. Our sincere thanks go to Frozen CPU for arranging a retail review sample of the Ultra-X. We would not have been able to turn a review around so quickly without their help.

Specifications

Our test system is Intel socket 775, but the Ultra-X will also mount on any recent AMD socket as well - including 754/939/940 and AM2. The Enzotech kit includes the back plate, cage, and mounting clip for AMD processors. All the needed hardware is included, and installation is even easier than the 775 install - particularly on a mounted motherboard.

Enzotech Ultra-X Specifications
Heatsink
Dimensions 148(W) X 148(D) X 118(H)mm
Weight 835g
Material Mirror-Polished Copper Base and Aluminum Fins
Heatpipes Four 8mm copper heatpipes
Fan
Fan Size 120 x120x 25mm
Bearing Type 2-ball Delta AFB1212H-FOO
Connector 3-pin with integral fan-speed rheostat
Speed Lo Speed 1,200rpm Hi Speed 2,500rpm
Noise Level Lo Speed 24.5dBA Hi Speed 38.5dBA
Fan Output Lo Speed 35.8cfm Hi Speed 82.67cfm

The Ultra-X is relatively large, but it is shorter in height than most of the heatpipe tower coolers. The heatpipe cantilever overhangs the base, so you can also cool a Northbridge or hot power transistors depending on how you mount the cooler. Enzotech did not provide recommended orientations for the cooler for various case designs.

The EVGA 680i is a difficult to fit board due to the copper-finned heatsink and fan cooling the Northbridge. The Enzotech fit comfortably but clearances required mounting the cooler out of the case before mounting the motherboard in the case. Installation was also an easy task on the ASUS Striker and ASUS Commando, and on the two new ASUS P35 boards - the P5K Deluxe and P5K3 Deluxe. The P5K3 Deluxe will likely become a fit test for any motherboard, since the heatpipes completely circle the CPU socket and connect various cooling heatsinks around the CPU socket.

Index CPU Cooling Test Configuration
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  • Wesley Fink - Thursday, June 28, 2007 - link

    Corrected
  • Barkuti - Wednesday, June 27, 2007 - link

    Too much fuss with all of these new massive coolers. Back in 1995 I purchased a Thermaltake Sonic Tower, which proved to be an incredible performer, best passive cooler IMO. The one being currently available is "rev2", guess it's just a mounting accesories update.

    The cooler comes with a mounting plate for a 12 cm fan, which can be installed on either side. I myself drilled new screwholes on a inner side to be able to install the fan in the center, saving a bit of space. A bit cumbersome to install the fan this way tough. Achieves top performance in this configuration, even with an ultra-low noise fan.
    An Anand's review of this cooler is still missing and I think it's really worth the pain, like a gem lost inside and old chest.

    And with a bit of skill, a little mod and a lot of space you may be able to install three fans on it... Drools about the kind of performance and perf/noise you could get this way, even with just 2 fans...

    Cheers
  • DrMrLordX - Wednesday, June 27, 2007 - link

    Is there a side intake duct or vent that can feed top-down HSFs in your test bed? I'm pretty sure top-downs just don't work well if they can't pull cool air directly in from outside the case (which is why they've done so well in open-air testbeds).
  • vhx - Wednesday, June 27, 2007 - link

    Definitely nice, but there are a lot better alternatives according to the results. Anyways, does anyone know whats up with Anandtech's forums? They've been down for like a week.
  • theprodigalrebel - Wednesday, June 27, 2007 - link

    The forums have been a little iffy of late but they most certainly haven't been down all week. They just had an update of the forum software and there were a few minor outages here and there - Opera users had some problems, so did IE users. Did you try deleting all forums.anandtech.com cookies? It should work.
  • Wesley Fink - Wednesday, June 27, 2007 - link

    The LATEST NEWS at the top of our AT Forums Log-In page:

    "Clear your cookies... - 06/24/2007 01:17 PM
    We recently updated our forum software to fix a number of issues. As a result, some users are having problems using FireFox on the forums.

    The fix for this is to delete your forums.anandtech.com cookies.

    We recommend that all members delete their forum cookies, though we haven't run into any technical issues with this in other browsers.

    Thanks for your patience while we continue to improve the forums."
  • Pirks - Wednesday, June 27, 2007 - link

    I've got myself A cooler master geminII and run it in passive (fanless) mode, and no fan on my passive mobo chipset heatsink as well. finally I've got a silent PC! my wife thinks my computer stopped working now, hehe :) no overclocking of course but who needs it for games anyway. I'm getting high framerates with S.T.A.L.K.E.R. around 30-40 fps and I'm happy. who says you need a mac to get a silent computer? who says gaming PCs are noisy? just ignore those noobs, they know nothing
  • deadseasquirrel - Wednesday, June 27, 2007 - link

    but it seems, at least according to this review, that it is not worth the price for the performance you get. Can anyone else see a better price/performance cooler than the Scythe Mine Rev B? For $38, with fan, and pretty quiet, it seems like a good choice. Oh, and are the forums down or am I having browser problems?
  • kmmatney - Thursday, June 28, 2007 - link

    I have a Scythe mine and am happy with. It's a good combination of price, low noise (its nearly silent) and good cooling. I don't know if I'd recommend it for extreme overclocking, but for stabdard overclocks it is great.
  • Goty - Wednesday, June 27, 2007 - link

    Based on the little knowledge I have about the inner workings of heatpipes, wouldn't the lower heatsink on the X-Ultra lower the efficiency of the heatpipes (where heat transfer to the main heatsink is concerned) and thus the whole cooler?

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