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When lapping an i5-2500k...

post #1 of 8
Thread Starter 
How much are you looking to take off of it? Is there a copper base underneath the initial layer of whatever (nickel?) is on top? Are you looking to just even the surface of the cpu, and not actually remove too much of the original finish? I've seen a cpu polished down to where the copper was exposed nice and shiny, but that wasn't a Sandy Bridge and I don't know if I should try that with mine?
post #2 of 8
You want to remove just enough so the surface is flat, so yes youll remove the nickel layer. Not sure if there is a need to lap 2500k what are your temps, what heatsink are you using?
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post #3 of 8
Lapping will help when the surface of the IHS is concave (or convex I guess, don't see that too much though). Usually you just want to make the surface is flat (finish with fine paper so it isn't rough), polished & shiny might need a touch less TIM but isn't critical.
If the IHS is already flat lapping doesn't have too much effect on temps.
    
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post #4 of 8
I lapped mine..oh man I wish i had a decent camera..and..Picture an x where 2 triangles that meet @ the center are copper..and the other 2 are still nickel..It's in the very top right of my avatar.
 
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post #5 of 8
Thread Starter 
Quote:
Originally Posted by Kyle659 View Post

You want to remove just enough so the surface is flat, so yes youll remove the nickel layer. Not sure if there is a need to lap 2500k what are your temps, what heatsink are you using?

It hasn't arrived yet, hopefully it's in the mail by now, but just wanted to get everything ready for when it does get here. I'll be using a Hyper 212 Evo as well, looking to get up to 4.8ghz if at all possible.
post #6 of 8
Quote:
Originally Posted by Schmuckley View Post

I lapped mine..oh man I wish i had a decent camera..and..Picture an x where 2 triangles that meet @ the center are copper..and the other 2 are still nickel..It's in the very top right of my avatar.

That one looks like it was a prime candidate for lapping. I tried lapping an i7 920 that was very slightly concave, obviously not enough to need lapping since several hours of sanding the cpu & heatsink base improved temps by like 1°.
    
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post #7 of 8
Quote:
Originally Posted by XxMerlinxX View Post

It hasn't arrived yet, hopefully it's in the mail by now, but just wanted to get everything ready for when it does get here. I'll be using a Hyper 212 Evo as well, looking to get up to 4.8ghz if at all possible.
doh.gif Make sure it works, 1st! See how it clocks and what kind of temps you get before you go voiding the warranty..Silicon chips don't taste very good when you eat them sicksmiley.png
 
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post #8 of 8
Thread Starter 
Quote:
Originally Posted by Schmuckley View Post

doh.gif Make sure it works, 1st! See how it clocks and what kind of temps you get before you go voiding the warranty..Silicon chips don't taste very good when you eat them sicksmiley.png

Lol, it's a used chip, so no warranty to void anyway.
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