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Thermalright SLK-900U Copper Heatsink Review
Thermalright SLK-900U Copper Heatsink Review
  90%   
Abstract: Given these two different sizes of fans, rotational speeds, and CFM output it will be interesting to see just how the Thermalright SLK900U reacts thermally!

 Manufacturer  Category  Published  Author 
Thermalright   Cooling / Heatsinks   May 28, 2003   Max Page  

Home > Reviews > Page: The heatsink from all sides

Thermalright SLK900U Heatsink From All Angles

The Fan:
There are a variety of fan sizes which can be used with the Thermalright SLK900U including; 68mm, 75mm, 80mm, and 92mm. The Vantec Tornado fan is 80mm in size, and the low noise Zalman fan 92mm in size. Depending on which fan you opt to install on the SLK900U there is a different type of wire clip to choose from. The wire clips slide into one of two holes punched into the fins which hold the whole fan retention clip assembly in place. Since the wire clips lock into the screw holes there is no easy way of mounting a wire grill over the fan itself.

Side A:
Looking from the top of the SLK900U with no fan mounted in place you can really see just how little heatsink there actually is. The base of the copper cooler is just 27mm in width so add-ons like TEC's are not feasible with this cooler. The fins are mounted to the copper base at an angle, and held in position with solder. The black frame which surrounds the copper heatsink is used to mount the cooler on either a socket 478, or socket A (with mounting holes in PCB) platform.
Side A:
Fins are spaced 1mm apart and measure approx. 0.3mm thick. The copper fins have been soldered to the copper base at the heart of the SLK900U, and to keep the fins in line at the outer edges there are interlocking tabs. Note how the wire clips are held in place by small holes punched into the copper fins themselves - quite an ingenious method! The entire SLK900U heatsink stands just over 40mm tall without a fan.

Side B:
At the center of the large copper fins section is a Toblerone shaped triangle of copper which forms the base of the SLK900U heatsink. The center of this base is cut away so that a spring tensioned cip can pass through. When the heatsink is locked in place this spring clip applies pressure to the heatsink. I'd honestly be somewhat hesitant to use this heatsink on an AthlonXP processor given the size of the unit.

Heatsink Base:
The base of the SLK900U is machined nice and flat, though it only measures 28mm wide. One end is notched to clear the socket cam arm which is a nice touch. The surface finish is very smooth. The fins stand out 15mm or so which means exhaust air from the fan above will be directed down towards the processor itself - further cooling the toasty chip down.

 Previous Page ° ° Next Page 

Table of Contents:

 1:  Thermalright SLK-900U Copper Heatsink Review
 2: — The heatsink from all sides
 3:  New Heatsink Test Parameters
 4:  Thermal And Acoustic Results
 5:  Final Temperature Results

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