Lapping my processor(s) (+Pics)

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13 Apr 2007
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172
Location
Wolverhampton
Hello all,

In the past couple of months I've been through a few processors:

Firstly - An E2180, the first thing I'd ever lapped, I loved that processor, got her to 3.2GHz in my mATX rig nice and stable at 1.331V under load (ish) with my ASUS P5E-VM HDMI.
Topped out at 55 degrees with an Antec 3-speed 120mm fan blowing towards a Silverstone Nitrogon NT06.

E2180 before:
dscn0004lo1.jpg



E2180 after some very poor quality 600 Grade:
dscn0009cf4.jpg



E2180 after 600, 800, 1000, 1200, 1500, 2000, 2500 Grades:
dscn0011up6.jpg


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Secondly - This E2160 replaced my old E2180 as a favour for my friend Pete (His J&W IP35 didn't like FSB's over 370 or so with the E2xxx series chips)
Only had this one for around 3 weeks, lapped it as soon as I got it with a kit exactly the same as used on the E2180.
I never really had a chance to play with this one, had it running at 3.2GHz with 1.342V maxing out at 62 degrees with the same cooling as above.

E2160 before:
p1010587mn8.jpg



E2160 after 600, 800 Grades:
p1010591eu5.jpg



E2160 after the full 600, 800, 1000, 1200, 1500, 2000, 2500 Grades:
p1010597qr0.jpg


p1010600ln4.jpg


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Now, as you should all know; only lapping one of the two surfaces doesn't often help and so, the base of my Silverstone Nitrogon NT06 just had to lapped back when I had my first E2180 :p

Nitrogon NT06 after all the grades:
p1010594croppedaz8.jpg

^^ This picture is actually my favourite, I mean, you can actually see the pins on the LGA!

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OK, so, the more discerning of you may say "But Banjo, those images aren't a true representation of the finish you achieved. As the camera is focused onto objects that are far away reflections so surface marks and scratches cannot be seen as they are not in focus."

So, to those of you who would say that - everyone who uploads pics of lapped surfaces does it this, hardly anyone will willingly upload images of a lapping job that doesn't look absolutely perfect :p

And, I'll be honest, I don't have any images that show the small surface marks that the Heatsink base had accumulated after all the re-seating it's had to do, but you'll agree, these pics are so much more impressive!

Thanks for reading!
 
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Guide

This guide has been a good read for me.

He (Cathar) says something along the lines of just because a HS or CPU is lapped so much just for the shiny look etc can be bad. Essentially what i can gather from this guide is that shiny shiny isnt always the best performer.

Guide
 
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you are right, most important thing when lapping is to ensure you are getting a flat surface to ensure the best contact between cpu and heatsink.. higher grit gives you a flatter surface i.e. less uneveness on the surface so should also help to improve temps.. but no point having a super shinny surface if it isnt flat
 
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