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Rosewill RCX-Z1 Heatsink Review
Rosewill RCX-Z1 Heatsink Review
  70%   
Abstract: Rosewill ship the RCX-Z1 with a patch of pre-applied thermal compound and a PCI bracket fan speed controller. The 92mm spins at between 1700-310RPM, which generates as much as 54 dBA, according to our real world sound measurements.

 Company link  Category  Published  Author 
Rosewill   Cooling / Heatsinks   Feb 26, 2007   Max Page  
Home > Reviews > Page Title: 360° View - Rosewill RCX-Z1 Heatsink

360° View - Rosewill RCX-Z1 Heatsink
Information on Frostytech's test methodology is available here.
The Heatsink Fan:
The 92x92x25mm fan spins at 1700-3100RPM, and produces upwards of 54.1 dBA noise according to our measurements. The fan guard prevents loose wires from being entangled in the impeller blades of the Rosewill RCX-Z1 heatsink. The fan draws power from a standard 3-pin motherboard connector that supports RPM monitoring.

Heatsink Top:
The extruded aluminum fins measure roughly 40mm long on either side of the mounting clip. Each fin is 1.0mm thick at the base and spaced 2.0mm apart. This is a fairly open fin-pitch extrusion, and the fins tapper down as they reach full height of the Rosewill RCX-Z1 heatsink to reduce air resistance. If you look carefully you'll notice a slightly wider space between the center two fins. This indicates the extrusion was originally used with Socket A processors in mind.

Heatsink Side A:
From the side we see an 11mm overhang on either side of the Rosewill RCX-Z1 heatsink. The sides of the heatsink have a sanded finish. The small black plastic lever is the cam arm, in this position it allows the clip to be installed on the heatsink retention frame. Rotated 180 degrees it applies the correct amount of clamping force to the CPU below.

Heatsink Side B:
The 92mm diameter fan mounts directly to the extrusion with a set of screws. The fan intakes cool air, blows it down into the aluminum fins where the warm exhaust air then exits at either side of the Rosewill RCX-Z1 heatsink to further cool northbridge chipsets, or adjacent power circuitry. The heatsink retention mechanism is dead simple, using just the center tab of the socket 939 or socket AM2 heatsink retention frame to lock itself in position. A cam lever then applies the appropriate clamping force to lock the heatsink down. The base measures 77mm across, and 7.0mm thick. Note the center space which is slightly larger than the rest - on socket A heatsinks this was used to keep the clip in position. The extruded fins stand 35mm tall.

Heatsink Base:
The effective base area of the Rosewill RCX-Z1 heatsink is a 60mm x 60mm block of copper. The copper heat spreader is mounted to the extruded aluminum section with four brass rivets, and has a sanded finish. The heatsink ships with a pre-applied patch of thermal compound that was removed for our test purposes. The base is flat is one axis, and very slightly wavy in the other. Surface roughness is about ~63 microinches, which is considered satisfactory.



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Table of Contents:

 1:  Rosewill RCX-Z1 Heatsink Review
 2: — 360° View - Rosewill RCX-Z1 Heatsink
 3:  Acoustic Comparisons and Base Surface Quality
 4:  Final Heatsink Temperature Comparisons

List all Rosewill heat sinks that Frostytech tested?

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