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Lapping the cpu works!! ~results~

post #1 of 47
Thread Starter 
just read a thread on lapping the cpu: (here it is in breif)

-amd cpus have copper under the silvery zinc coating
-included a better lapping technique of tape'in the sand paper to a mirror and moving the object to be lapped on the fixed paper (this gave a super flat surface)

so i thaught id give it a go, had to take all my carefully insulated peltier n cpu out though ><

so basically lapped all the way to 5000 grit on my peltier cold plates and the cpu and i dropped 10C!! which is excellent concidering the arctic silver hasnt even set yet and my minimum temp before @ 2.9Ghz (from 2.4) was -7C so yeah! at overclocked its now -17C! so hopefully when the AS5 has set ill put it at stock and hope fully get some very low temps (max stock b4 was - 18C so -28C?? maybe :S)

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post #2 of 47
Nice good job
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post #3 of 47
Quote:
Originally Posted by marc.tulley View Post
++rep plz
Just to tell you, its against the rules to ask for rep.

Anyway, nice lapping job when I tried to do it it didn't get very shiny lol even though I went to high grits.
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post #4 of 47
Good job on that cpu. My chip looks exactly the same as yours now, haha

Can you tell me a little about your pelt setup please?

I'm looking to do something like that if its worth it.

Cost/ease of setup/is that watercooling on the pelt? hmm
post #5 of 47
Thread Starter 
yeah its weird from about 1000-3000 grit using the 'wet to dry' teqn gave a shiney finish but didnt on 3500-5000, but just 'dry' started giving a shiney finish from 3500 onwards not before.....maybe just me, how did you do it? wet or dry?
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Kelvin
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post #6 of 47
Thread Starter 
Quote:
Originally Posted by TheEddie View Post
Good job on that cpu. My chip looks exactly the same as yours now, haha

Can you tell me a little about your pelt setup please?

I'm looking to do something like that if its worth it.

Cost/ease of setup/is that watercooling on the pelt? hmm
yeah be glad too

setup -
~320W pelt with Cu coldplates on each side
~DD TDX cooling it
~1 240 rad and 1 120 rad
~DD D5 pump
~the little thing at the bottom of my case is my latest invention (peltier cooling the coolant via a weater block with a big typhoon cooling the hot side with a fan cooling that from under my case)
~seperate akasa 550w psu powering the pelt (2 12V rails in parrellel to hack the current load)
it was really easy to do , just make sure you do all the reasearch b4 hand! and all the pasts were a few quid each (insulation, dielectric grease, coldplates etc) pelt was around 20 quid and psu was 60 quid

see my installation post for more info:
http://www.overclock.net/peltiers-te...etup-pics.html
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post #7 of 47
you did a good job lapping it, but its disappointing. you can save SO much more time and get better results by just cutting off the IHS =/
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post #8 of 47
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Quote:
Originally Posted by mudd View Post
you did a good job lapping it, but its disappointing. you can save SO much more time and get better results by just cutting off the IHS =/
yeah i did read up on that too , but i apply alot of pressure which would prob crack the core. takin thee IHS off is way too risky for that extra few degrees in my eyes
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post #9 of 47
agree with you man..
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post #10 of 47
Quote:
Originally Posted by marc.tulley View Post
yeah i did read up on that too , but i apply alot of pressure which would prob crack the core. takin thee IHS off is way too risky for that extra few degrees in my eyes
the core is harder than the IHS =/ you're not going to crack your core. i'll do an experiment on my 3500+ to prove it.......
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