Enzotech BMR-C1

Forged Copper RAM heatsinks

Date reviewed: March 14th, 2010

Author: Chris

Today I will be reviewing the Enzotech BMR-C1 RAM heatsinks. I saw these on the NCIX website and they looked so cool, so I told myself I had to get them.

Here are the features & specs as per the package:

-ATI & NVIDIA compatible
-Forged pure copper
-Easy installation using thermal tape
-Dimension : L14 x W14 x H14 mm
-Weight: 7g (each)
-Material: C1100 copper
-Thermal Adhesive: 3M #8815 thermal tape

The first pics show the front packaging, the back packaging wich lists the info above and we can see the plastic holder inside the box to keep the ram heatsinks from moving around.

Ok I have to admit, there is another reason i bought these sinks aside from them looking cool, and this is the fact that they are made by forging a piece of copper. This means there is NO soldering of any kind and this is the best scenario for transfering heat. The next few pics try to show this forged process. You can see especially in the second picture that there is no connection between the base and the rounded pins it's seamless.

I will be using these heatsinks on the memory of my XFX HD 4890, I am recycling my Thermalright HR-03 GT VGA heatsink since it will fit on my 4890. But I needed new ramsinks since the ones that came with the HR-03 GT had been already used and had thermal adhesive still stuck on them, and they are smaller hence less efficient than the BMR-C1's. Below i have the 3 main heatsinks side by side to show the differences. The 2 silver ones came with my Thermalright HR-03 GT and are made of aluminum. The small heatsink is to be used on the memory chips that sit right below the heatpipes of the HR-03 GT once installed, and this is why they are way shorter. You will be able to see better in later pics. I did a rough calculation of the volumes that these sinks take, i didn't take into account the material removed from the volume it's just to give an idea. And as you can see the BMR-C1 heatsink covers more than 2x the volume of the other main sink. These things are massive!

Here you can see the 3 sinks side by side in a front shot, and you can see better the towering presence of the BMR-C1's.

Now obviously I have a dilemna because these sinks will never fit below the heatpipes of the HR-03 GT. I can either use the old included small silver sinks, or I can do some modifications. I opted for the latter. I marked the BMR-C1's and started sawing them 1 row of 5 pins at a time. Once i removed some material with the saw blade I bent each pin back and forth until metal fatigue snapped the pins off. Then once all the pins were removed I broke out my 220 grit sandpaper and tried to even the pins out as much as possible. And here are the results voila!

I tried to remove the least amount of copper as possible in order to maximize the space below the heatpipes, but still I had to cut the BMR-C1's to about 6mm from 14mm. But as you can see from the pic below that is still twice the height of the included small Thermalright sinks.