| CB0307Z17 Heatsink From
use PowerLogic fans on all the heatsinks we have tested from them up to
this point. Facing
the world with a Powelogic fan the ChoLiang heatsink is moderately noisy, but
not much more than a typical power supply might be. The fan draws just
0.22A and does not require any type of fan grill. The
fan supports RPM monitoring and connects via a standard 3-pin motherboard fan header.
The Cho-Liang heatsink has a rather neat set
of fins that reminds us of Cisco's San Francisco bridge-like logo. The
fins also hint at a rise in the thickness of the base which may help with
thermal transfer to the outer edges of the heatsink.
The side of
the heatsink shows no cross cuts so the air must escape out from either side. The small tabs left on either side are
what the two loose clips press down on to hold the heatsink in place. Each tab
is about 7mm wide.
The fins range in height from 20mm
to 27mm in height and are ~0.75-1.0mm thick. Each fins is spaced ~1.5mm apart.
The base plate at its thickest point is 10mm thick.
I have mixed feelings about the base
of this heatsink because it is simply the raw extrusion. Raw extrusions are
never perfectly flat so it is a bit of a step backward
to plate that surface. Given the markets that Cho-Liang are likely
to be aiming for it wouldn't make much sense to machine the
base, although that is something we could all benefit from.