Abstract: The Eumax B605-01 is a full copper heatsink which has received a nice
nickel plating for that shiny, "I'm gonna get you sucka!" look.
Eumax B605-01 Copper Heatsink Review
In recent months we've tested a few heatsinks from a
company by the name of Eumax. Of the heatsinks we've evaluated, there has
been a surprisingly large variance in the build quality - perhaps hinting to some
poor out sourcing choices for certain past models. While the majority of the Eumax heatsinks we have tested have
been well made, there was at least one model which drew ire from us. That model was the EU01, and if you'll recall, it was a copper fin that
spontaneously dropped out of the heatsink during testing that caused concerns.
Luckily, that appears to have been an isolated
failure in Quality Control on the part of the manufacturer, as the Eumax
heatsink we are testing today is definitely up to snuff.
The Eumax B605-01 comes to us
from the folks at Iocombo.com, and it appears they're not about to settle for bum
coolers. The Eumax B605-01 is a full copper heatsink which has received a nice
nickel plating for that shiny, "I'm gonna get you sucka!" look that makes toasty
AMD AthlonXP heatsinks quiver with fear. Or, at least that is the way it's
supposed to go.
Sold By: www.eumax.com
copper, nickel plated
Fan: 12V, 0.40A
- Fan Dim: 15x70x70mm
- FHS Dimensions: 44x72x70mm
reality the plating is not going to improve cooling for the solid-copper
heatsink; what it will do is prevent the copper from oxidizing over time, and
the smooth surface can help cut down on dust accumulation to a small degree. A
smooth surface doesn't seem to "grab" dust as easily as other treatments,
especially at the edges of the punched out copper fins. There are a few other
things the plating may do to help the interface between the base and fins, but
it is difficult say for certain what the overall thermal impact will
|Eumax B605-01 Heatsink From All
||The Fan: |
There isn't anything particularly special about
this 70mm fan which supports RPM monitoring except for the fact that it draws
0.4A. Most fans this size will only pull in 0.2A
and rotate at 4500RPM. The fan mounts directly to the fan shroud
which is part of the heatsink body, and apparently nickel-plated copper as well. The nine-bladed
impeller has a motor diameter of 32.5mm in diameter.
The fulcrum for the clipping mechanism is
off-center as it is supposed to be according to AMD spec, this ensures
that force is applied over the core, and not the center of the heatsink
base. Interestingly, the three-prong clipping mechanism has not tabs
jutting out at the fulcrum to lock the copper heatsink in place and
prevent it from sliding down over time despite the fact that the heatsink
is built for that. A circular hole is cut in the fan shroud which supports
the base of the fan the customary 4mm above the tips of the cooling
The base of
the heatsink measures 62mm x 60mm in size but since the fan is 70mm square the
shroud extends out to support it. Given the size restrictions of the
socket A platform, this is a quick and easy solution to install a larger
sized fan on the heatsink without potentially interfering with adjacent capacitors. The overall height of
the heatsink itself is 28mm, the fan adds another 15mm to the entire profile.
||Side B: |
The three-prong clip requires a screw
driver to engage, and the also helps to distribute
the clipping load over a wider area so it is less likely that
the socket itself will fail. The copper fins are punched out and joined with a
mechanical interlocking tooth to form one solid unit, with equal spacings of 1mm.
The fins each measure 0.3mm thick, and the base 4mm. There are 18 fins
in each group measuring 20mm in height.
To test out a base we use a
thin straight edge silhouetted in front of a light. Any light that pokes
through tells us there is a gap, depression, or slight curve to the base of
the heatsink. The critical area is where the processor core comes
into contact with the metal, but it's always nice to see a totally
flat face over the entire base plate. The Eumax B605-01 has a pretty
flat surface in one axis, and a very shallow depression in the other
(to shallow to cause any problems with the small die of an
AthlonXP). Because of the plating the copper has received, the surface
is smooth to the touch.
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