No Lapping Matter…
I took a bite at a bullet this week and many of my peers either considered me having balls the size of grapefruits or having balls for brains. I actually am still in shock for what I did with my Conroe (processor). Anyways, I just dropped by my local hardware store to get some sand paper. Grit ratings from 320, 400, 600 and 1500. Unfortunately, Dubai doesn’t carry all of them and I have to settle with what have. So my newly acquired Gigabyte 3D Rocket II Cooler was going under the knife called Lapping. Lapping is a process where you use really fine waterproof sandpaper and smoothen up the finish of a metal. You see, your heatsinks are factory lapped and isn’t really polished off, under a microscope, the edges are still rough, a metal which actually has been lapped the best shines and is like a mirror giving off a reflection. Of course we don’t lap because we want to see that shine but because this whole process improves conductivity. So this whole process was to bring down my temperature generating from my processor.
Lapping doesn’t require any skills at all, just a lot of patience.
What you need:
Water
Waterproof Sandpaper (Grits 400, 600, 800, 1000 & 1500)
Flat Surface or Glass Pane
Duct Tape
Dishwashing Liquid
Patience (lots of it)
What to do:
1. Divide your whole sandpaper into vertical strips.
2. Using the duct tape, secure your first strip (lowest one) on both ends into the glass. Make sure it is as straight as possible.
3. Get some water and dab the area where sanding will take place. Don’t put too much. You may also dip the whole sand paper into water and then attach to the glass pane.
4. Now put a drop of dishwashing liquid on the HSF base turn it facing the sandpaper and create vertical up and down motion on the sand paper. Do at least 10 repetitions.
5. After 10 repetitions, rotate the base of the HSF at a 90 angle and repeat process 4, reapplying dishwashing liquid and put water on the sandpaper. Keep repeating until you’ve done a complete 360 rotation.
6. Once completed, move to the next grit level and repeat step 2.
You’ll notice that as you climb each grit level, the base of the HSF slowly becomes reflective. At 1500 to 2000 grit, the base is like a mirror. Personally speaking, when working on the lower grit, I use 720 rotations or do two complete rotations and just one complete rotation when you get higher.
So after 2 hours, I added another two hours on it. A total of 5 hours as I completed another lap job. Not just another lap job but something which took a lot of guts to do. Just sit back and admire my effort which went without an ounce of intelligence. Note that if you do this, you void your warranty. Now you know why I had balls for brains.
By the way, the temperature drop was not significant enough.