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Should I lap my CPU before I WC it?

post #1 of 19
Thread Starter 
Like the title says, should I ? The VID is 1.2625......Gonna have the Petra D4 kit on it....
    
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post #2 of 19
yes! :thumbsup:
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post #3 of 19
doesnt hurt to do it, if you got time and wanna drop your temps by a few degrees then i say go for it. is it really nessicary tho... prolly not.
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post #4 of 19
Yes, Its worth it =)
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post #5 of 19
Thread Starter 
Yeah I will have the time, I got to and will wait at least 24hrs for leak testing.

On a side note,

Should I re-lap the GTZ too?
    
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post #6 of 19
I don't think its needed. I have my H/S lapped but not cpu. Mine was pretty flat so it wasn't to big of an issue. If you have the time I say go for it. I would lap both the processor and h/s at the same time though.
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post #7 of 19
If your IHS is cupped or convex it will help little. Most water blocks come really nicely lapped already, I wouldn't mess with the block unless its scratched up or something. If you do lap the base I'd take it out of the block so it will lay flat, the frame can kind of bow them a little.
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post #8 of 19
Thread Starter 
I think I will do the razor test on my cpu to see if its bowed. Then if it is, a lapping it will get!
    
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post #9 of 19
Quote:
Originally Posted by bluedevil View Post
I think I will do the razor test on my cpu to see if its bowed. Then if it is, a lapping it will get!
I would just go to the local hardware store and pick up the sand paper. I just lapped my h/s on a slate desk that we have. Then you can pick up multiple sheets, for less probably.
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post #10 of 19
Heyah.

I would not lap the CPU if there is a mild bow as it may be intentional and beneficial.

Most quality CPU blocks will come from the factory with a very nice finish, and lapping is generally not necessary (please ignore that I lapped mine ~ long story )

I realise that it may be a pita, but I would try the block as it is, and if you find that it needs some tuning, then take the sandpaper to it
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