black adidas shorts Lapping my cpu block Modding my Coolit Freezone

adidas outdoor shoes Lapping my cpu block Modding my Coolit Freezone

>> Re: Lapping your cooling block

Meats_Of_Evil said: It looks like a whole new block, very polished. I’m curious though, how did you went on finding the lump on the center? I thought that when errors like that were made they were hardly visible.

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Sep 19, 2009, 07:10pm EDT

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>> Re: Lapping your cooling block

Thanks guys. I just got in 20 mins ago from being outside working on my house. Painting. been on the ladder for six hrs painting the overhang/softfet. The joys of house ownership.

Now I am covered full of paint from the hair on my head down to my shoes. Tested it out usind the edge of my all metal ruler I have.

BoT said: i think it’s a pretty good job. i did much worse on my first lapping experiment.

what tool did you use for lapping?

I used a rectangle baking cookie sheet (used to contain the water that was being used for lapping), a marble cutting board (surfaced used to place my wet/dry sand paper), a squirt bottle of water,
black adidas shorts Lapping my cpu block Modding my Coolit Freezone
and lots of elbow grease. I held the cooling block with my fingers and slide the block across the sand paper from me to away from me only motion with light pressure. And rotating it 90 degree every 15 or so strokes until I got around 8 full revolution.

I have a 4″ square electric random palm sander. I was thinking if this would be good to use. but I decided to just do it by hand.

Meats_Of_Evil said: It looks like a whole new block, very polished. I’m curious though, how did you went on finding the lump on the center? I thought that when errors like that were made they were hardly visible.

The way you check for “flatness” on the contact surface of a heatsink is to place a straight edge on the surface and then on the opposite side from the side you are looking at, you place a bright light source to the back side of that edge to see if you see light coming through between the edge and the surface. If you do. then it is not flat. On my Danger Den cooling block. I found a hump in the middle of the heaksink that ran the longwise length of the block. What you saw was light on either side of the center point. In the middle is no light and the on either side of that point there was light and increasing light as you went away from that center point using your straight edge as the horizontal reference. And then you would place your straight edge in different position on the block to see if there are other “levelness” issue.

Errors like this comes in many different forms too. ie concave, convex, multiple lumps, one side higher than the other. etc. you may not tell right away from just looking at it. you need to use a some sort of tool to check for flatness.

An example of a cpu cooler that has “flatness” deficiencies. is the Ultra Extreme 120. There are many stories that this cooler is not flat and if you lap it. it will perform much better by a few more degrees. even though this cooler is great as it is. That is why some vendors have an option that you can purchase one that they have lapped for you. for a price.

micro said: Great job,
black adidas shorts Lapping my cpu block Modding my Coolit Freezone
its nice to see that copper shine. sorry i missed your post. yeah. lapping the chipset cooler can help too. but. I wouldnt think that I would need to since my chipset on my system is barely warm to the touch. hmmm. yeah. your right that aluminum would not have taken as long as copper. but I kept looking at the cooler to make sure I didnt sand it to a point where I would start developing holes (entering into the inside of the cooler) on the lapped surface due to over sanding. It would have sucked if that happened.

2. moded the case

3. reinstalled the mb and all the i/o cards back in.

4. replumb’d my water cooling system to included the new upgraded parts (cooling block and pump/res combo unit)