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Lapped Sandy 3700+ CCBWE *56K*

post #1 of 12
Thread Starter 
Ok, Ive been lapping like hell over the last week.

I have now lapped>

My AC Freezer 64 Pro
My mobo chipset HSF
My Sandy 3700+

In the future, I'm going to lap my 7600GT stock cooler.

Heres some before and after pics>

Before - You can see quite alot of imperfections on the surface, and a nasty gouge out of one of the edges, probably due to a badly installed stock HSF by my PC supplier!


Antistatic foam stuck to the pins to provide some protection.


And after 2 hours solid lapping from 280>400>800>1200>1500>2000>2500 grit:


And the performance increase? Well I dropped about 2 degrees C on my core, which is not bad considering before lapping my AC64Pro and 3700+ I was loading at 49 degrees C with these particular settings in the BIOS.


The surface of the CPU was HORRENDOUSLY uneven. I have no idea why AMD doesn't sell their CPU's pre-lapped, and why the IHS has a zinc coating instead of being solid copper! I guess zinc is easier to print on or something!

PS. If your about to post "Why did you do that? Just remove the IHS!!!", don't bother, Ive thought about this already, and prefer the bling bling option!
    
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post #2 of 12
Wow good work. I just skipped the lapping and took off the ihs
    
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post #3 of 12
When my warranty expires on my X2, I will take off the IHS. Otherwise, back to lapping!
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post #4 of 12
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I think Ive used too much thermal paste. Temps are starting to rise. I didnt think I used that much either! :S
    
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post #5 of 12
Quote:
Originally Posted by Chosen View Post
Wow good work. I just skipped the lapping and took off the ihs
i took off my IHS too. when you overclock expect your warranty to go byebye.

lapping the IHS = hours + many many beers.

cutting off IHS = 5 minutes plus getting drunk before you do it and then another beer while doing it.....

simple equation
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post #6 of 12
Quote:
Originally Posted by alk View Post
I think Ive used too much thermal paste. Temps are starting to rise. I didnt think I used that much either! :S
#1 use a rice sized piece of AS5

#2 you should let it sit and cure. you won't notice big drop in temps asap. only when it cures.
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post #7 of 12
Thread Starter 
Quote:
Originally Posted by mudd View Post
#1 use a rice sized piece of AS5

#2 you should let it sit and cure. you won't notice big drop in temps asap. only when it cures.
Yeah, I know. I used like a piece about a third of a grain of rice and spread ti all over the surface in a reasonably even coating. I might try wiping it off till its semi transparent.
    
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post #8 of 12
Quote:
Originally Posted by alk View Post
Yeah, I know. I used like a piece about a third of a grain of rice and spread ti all over the surface in a reasonably even coating. I might try wiping it off till its semi transparent.
don't spread it over the processor. what you want to do is rub some into the heatsink and then wipe it off. then just put a drop on your proc and put your heatsink back on. no spready spready
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post #9 of 12
Thread Starter 
K. I'll give that a go.
    
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post #10 of 12
Quote:
Originally Posted by beret9987 View Post
When my warranty expires on my X2, I will take off the IHS. Otherwise, back to lapping!
Technically speaking your warranty was voided as soon as you used a non-stock cooler.
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