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Eumax DW-45 Copper Pentium 4 Heatsink Review
Eumax DW-45 Copper Pentium 4 Heatsink Review
Abstract: However, just like adding a super fast fan to an everyday heatsink to improve cooling performance, making that same heatsink out of just copper is another shortcut.

 Company link  Category  Published  Author 
Eumax   Cooling / Heatsinks   Jan 27, 2003   Max Page  
Home > Reviews > Page Title: The heatsink from all sides

EUMAX DW-45 Heatsink From All Angles

The Fans:
The 15mm thick 70mm reportedly spins at 3800RPM, but as the fan motor draws 0.4A I'm suspect of that number. In any case noise levels are pretty standard, and there is little chance of this heatsink standing out inside a case as a noise producer. The fan hooks up to a standard 3-pin motherboard fan header and supports RPM monitoring.

Bare Heatsink:

The interlocking copper fins are visible from the top with the fan removed. Each fin is only 0.3mm thick and is spaced about 1mm from the next. The fins are brazed or soldered to the base plate, and kept in position by the interlocking folds at the outside edges. The fan screws into the fan shroud which also provides a few millimeters of clearance above the top of the fins.

Side A:
From the side angle we can see that there is about 4mm of clearance between the tips of the fins and the base of the fan. The fins are 65mm across the width of the heatsink, and the outer tabs are for the HSRM to lock onto. The fan shroud appears to made from copper as well, and is 1mm thick. The baseplate is 4mm thick copper.

Side B:
The fan shroud supports the fan and provides a solid wall to help direct the fans' exhaust air out to either side. There are no vents or openings on the side of the heatsinks where the clipping mechanisms lock down. The entire heatsink is 43mm in height.

Heatsink Base:
The base shows evidence of being sanded, but is not entirely flat as it is smooth. There is a very slight wave effect but the central area where the core makes contact looks pretty good from what we can tell with an engineers straight edge. Thermal paste would be required with this base. The base measures 69mm x 83mm.

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Table of Contents:

 1:  Eumax DW-45 Copper Pentium 4 Heatsink Review
 2: — The heatsink from all sides
 3:  Heatsink Test Parameters
 4:  Acoustic Test Results
 5:  Synthetic Thermal Test Results

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Time stamped: 2:55AM, 09.18.2019
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