Buy the ARP T-Shirt! BIOS Optimization Guide Money Savers!
 
 28 August 2007
 N/A
  N/A
 Guides
 graysky
 1.0
 Discuss here !
 206062
 
   
The Mi 10,400 mAh Power Bank Teardown
The Mi 10,400 mAh power bank is one of the most popular power banks in town but how d... Read here
BIOS Option Of The Week - Host Bus In-Order Queue Depth
Since 1999, we have been developing the BIOS Optimization Guide, affectionately known... Read here
   
Buy The BOG Book Subscribe To The BOG! Latest Money Savers!
The CPU & Heatsink Lapping Guide
Digg! Reddit!Add to Reddit | Bookmark this article:

Lapping Thermal Surfaces For Better Cooling!

Hardware enthusisasts have always looked for ways to keep the processor running cooler. Not only does it improve the processor's stability, it also increases its overclockability. Hence, the use of better thermal pastes, larger heatsinks and more powerful fans. However, there is only so much you can do with air cooling.

This has led to the use of water cooling for better cooling performance. While cumbersome, expensive and harder to install and maintain, water cooling has allowed enthusiasts to achieve a new level of cooling performance. But what about those who cannot or will not shift to water cooling?

There is another way to significantly improve our cooling capabilities without resorting to new coolers, thermal pastes or fans. In fact, you can use this technique to improve whatever cooling system you choose to use. All you have to do is lap.

What is lapping? Lapping (or grinding) is a machining technique where an abrasive material is used to cut into and polish the object. Lapping can be used to both obtain a flatter surface as well as a smoother surface, but not necessarily both at the same time. This is a mistake made by many novices. They often assume that a mirror finish denotes both a very flat surface as well as a smooth one. In fact, you can obtain a mirror finish on any surface, whether it's curved or flat.

In computing, enthusiasts use lapping to ensure a flatter and smoother thermal contact surface (between the CPU and the heatsink). This improves thermal conductivity by allowing for closer contact between the contact surfaces. This increases the transmission of heat from the CPU to the heatsink, reducing the CPU temperature.

Of the two properties, obtaining a flatter surface is far more important than a smoother surface. A mirror finish is nice, but as mentioned above, it does not mean that the contact surface is flat. Also, it is quite impossible for us to manually polish a surface to a mirror finish without using some kind of polishing agent. Using a polishing agent is highly discouraged, as some of the polishing agent will remain on the surface and contaminate the contact surface, reducing the effectiveness of the thermal paste.

So, forget about mirror finishes. If you want better thermal conductivity, lap the surface with flatness first and foremost in mind. If you can also achieve a smoother surface, all the better. But never at the expense of using polishing agents.

Today, graysky will show you just how to do that. Let's get started!

Page

Topic

1

Introduction

2

Lapping The Heatsink Base
After Lapping The Heatsink Base

3

Lapping The CPU Heatspreader
After Lapping The CPU Heatspreader

4

Overall Results
Temperature Variation Between CPU Cores

5

So How Do You Lap?

6

Conclusion



Next Page : Lapping The Heatsink Base, After Lapping The Heatsink Base >>>

 

 
   
Western Digital VelociRaptor 600 GB Hard Disk Drive Review
The NVIDIA Quadro FX 5800 & 4800 Professional Graphics Cards
Crysis Benchmarking Guide Rev. 2.0
NVIDIA GeForce 8800 GT Overclocking Guide
Copy? Right… Rev. 2.0
The CPU & Heatsink Lapping Guide
GoldenMars 1GB GeeDom GU-P05 USB Flash Drive Review
Newbie's Guide To Overclocking
Powering Up A Standalone PSU Guide
McDonald's Tiki Hut Nemo Happy Meal Toy Review

 


Copyright © Tech ARP.com. All rights reserved.