Quantcast

Maximum PC

It is currently Thu Jul 31, 2014 12:13 pm

All times are UTC - 8 hours




Post new topic Reply to topic  [ 10 posts ] 
Author Message
 Post subject: polishing the CPU
PostPosted: Mon Jan 16, 2012 12:15 pm 
8086
8086

Joined: Thu Jul 15, 2010 10:44 pm
Posts: 80
I noticed the guy who built the L3P desk, he polished his Intel i7. Does that do anything to inprove thermal conductivity? Would it be worth it for anybody to do that? I am curious.


Top
  Profile  
 
 Post subject: Re: polishing the CPU
PostPosted: Mon Jan 16, 2012 8:52 pm 
Thoroughbred
Thoroughbred
User avatar

Joined: Sat May 07, 2011 12:30 pm
Posts: 1922
Location: A place not actively occupied by something else.
I've been wondering the same thing.
I know some eBay sellers do this to show off the model and serial numbers.
Also, do copper shims help? I know some people use them to increase the thermal conductivity between the proc and the cooler, but I have no idea if it is actually worth it, considering I have direct-contact heat pipes on my system.


Top
  Profile  
 
 Post subject: Re: polishing the CPU
PostPosted: Mon Jan 16, 2012 9:13 pm 
Team Member Top 10
Team Member Top 10
User avatar

Joined: Tue Jul 13, 2004 2:55 pm
Posts: 9217
Location: back on the right side of the middle of the left side YES i'm folding
yes, lapping improves contact between the cpu and the heat sink, ideally you should do both. there is no guarantee that either one is actually flat. I used to use a piece of glass for the base surface to lap. there are pretty good instructions on line if you are interested. you can lower temps 3-5 degrees compared to not lapping. there are also places on line that sell kits to do it. not that expensive either.

http://www.frozencpu.com/products/2888/lag-01/FrozenCPU_Deluxe_Heatsink_Lapping_Kit.html


Top
  Profile  
 
 Post subject: Re: polishing the CPU
PostPosted: Tue Jan 17, 2012 2:43 am 
Million Club - 2 Plus
Million Club - 2 Plus

Joined: Thu Aug 02, 2007 11:07 pm
Posts: 2622
Location: NC
Yeah, lapping does help, but it shouldn't be taken lightly. Honestly, just go to your auto store, get 200, 400, 800 grit wetsand paper and then rubbing compound (acts like a 1500/2000 grit action). It's basically similar steps to doing car prep for auto painting, but we are taking it to 800 instead of 400. You can add in a 1000 and 1500 grit paper, but its a waste of time and steps.

The trick to wet sanding is to use a few drops of dish soap in your water to help reduce the friction and build up of particles on the paper. Also for such a sensitive device, clean the papers often and make sure no water with particles is caked on the underside of the heatsink or contacts. Some people have been known to brick their cpu's after said and done, then plugging it in and frying their shit.

The biggest issues are people who over sand, who use way too much water when wet sanding and the fact that you will be grinding the serial numbers and info off the top (resell value... if you care).

And also, it really depends on the contact patch design of the heatsink that really plays a big role in this.


Top
  Profile  
 
 Post subject: Re: polishing the CPU
PostPosted: Mon Feb 27, 2012 9:18 pm 
Team Member Top 500
Team Member Top 500
User avatar

Joined: Wed Oct 07, 2009 5:15 pm
Posts: 2424
The tops of the new Intels look pretty terrible they could definitely use some improvement. I'm wondering if anyone has done a delid on one and tested if that made an impact.


Top
  Profile  
 
 Post subject: Re: polishing the CPU
PostPosted: Mon May 07, 2012 5:18 pm 
Team Member Top 250
Team Member Top 250
User avatar

Joined: Sun Nov 26, 2006 3:17 pm
Posts: 1156
3000 grit paper is hard to find


Top
  Profile  
 
 Post subject: Re: polishing the CPU
PostPosted: Tue May 15, 2012 11:14 am 
Team Member Top 10
Team Member Top 10
User avatar

Joined: Tue Jul 13, 2004 2:55 pm
Posts: 9217
Location: back on the right side of the middle of the left side YES i'm folding
ebay


Top
  Profile  
 
 Post subject: Re: polishing the CPU
PostPosted: Tue May 15, 2012 12:08 pm 
Thoroughbred
Thoroughbred
User avatar

Joined: Sat May 07, 2011 12:30 pm
Posts: 1922
Location: A place not actively occupied by something else.
Yeah Ebay is where you can find anything.


Top
  Profile  
 
 Post subject: Re: polishing the CPU
PostPosted: Tue May 15, 2012 5:33 pm 
Team Member Top 250
Team Member Top 250
User avatar

Joined: Sun Nov 26, 2006 3:17 pm
Posts: 1156
noghiri_x wrote:
Yeah Ebay is where you can find anything.


:wink:


Top
  Profile  
 
 Post subject: Re: polishing the CPU
PostPosted: Fri Jun 01, 2012 11:04 am 
Clawhammer
Clawhammer
User avatar

Joined: Fri Sep 23, 2005 6:22 pm
Posts: 4406
Location: In the closet
A polished or mirror finish is not that important, but flatness certainly can be if the base of the heatsink is convex or concave. I always test the base of the heatsink and the cpu with a razor blade.


Top
  Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 10 posts ] 

All times are UTC - 8 hours


Who is online

Users browsing this forum: No registered users and 3 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group