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Cooljag JVC258A V-Type Copper Base Heatsink Review
Cooljag JVC258A V-Type Copper Base Heatsink Review
Abstract: Not only does the upwards expansion out allow the heatsink to come equipped with a larger fan, but it also helps induce efficient exhaust judging by the looks of it.

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Cooljag   Cooling / Heatsinks   May 02, 2003   Max Page  

Cooljag JVC258A V-Type Copper Base Heatsink Review

With a Jaguar logo on the side of their heatsinks, and a new heatsink technology that goes by the name of "V-Type", you'd be forgiven for thinking that CoolJag was a some new car company. It isn't of course. The new CoolJag V-Type skiving processes takes to heart some exciting new trends in heatsink manufacturing which have so far proven to be very thermally advantageous.

The triangular shaped base section, and the V-shaped fins are something we haven't seen before on a skived heatsink, and judging by the thermal results of the JVC258A, this won't be the last time either.

Not only does the upwards expansion out allow the heatsink to come equipped with a larger fan, but it also helps induce efficient exhaust judging by the looks of it.

As if the CoolJag V-Type technology weren't enough to focus on, this heatsink also packs a 3mm thick copper base that is just about as smooth as a babies bottom. The noise signature of the CoolJag JVC258A is moderate given the 60mm fan, and that is something we always look forward too... not hearing.

Heatsink Specsheet:
  • Model: JVC258A
  • HS Material: nickel plated Aluminum skive with copper base
  • Fan: 4500 RPM,12V, 0.2A
  • Fan Dim: 15x60x60mm
  • FHS Dimensions: 62x61-80x62mm
  • Made by: CoolJag
Sold By:
Heatsink Audio Sample Included.

We like to find out as much as we can about each heatsink we test out, so that typically means they're taken apart and scrutinized. As the CoolJag JVC258A was going through testing we were trying to figure out just how the copper base had been attached to aluminum. The answer came when we removed the fan shroud for some photos. Looking under the clip it was clear that at least a portion of the heatsink had been nickel plated, a medium to which the copper could then be soldered to. To finish things off for a clean appearance, the edges were then machined away yielding the nice interface you see here.

Another interesting point to consider is how the clip has been integrated into the JVC258A for better protection of the AthlonXP processor core. Not only does the spring clip make use of all three tabs of the socket, but one edge is held in place so that the heatsink will not need to be tilted on the core - an act which could chip the edge of the brittle silicon.

° Next Page 

Table of Contents:

 1: — Cooljag JVC258A V-Type Copper Base Heatsink Review
 2:  The heatsink from all sides
 3:  Heatsink Thermal/Acoustic Test Parameters
 4:  Thermal And Acoustic Results
 5:  Final Temperature Results

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