LinuxQuestions.org
Visit the LQ Articles and Editorials section
Go Back   LinuxQuestions.org > Forums > Linux Forums > Linux - Hardware
User Name
Password
Linux - Hardware This forum is for Hardware issues.
Having trouble installing a piece of hardware? Want to know if that peripheral is compatible with Linux?

Notices


Reply
 
Search this Thread
Old 08-21-2014, 04:14 AM   #1
stf92
Senior Member
 
Registered: Apr 2007
Location: Buenos Aires.
Distribution: Slackware
Posts: 3,383

Rep: Reputation: 50
Northbridge heatsink stuck or greased?


Hi: The northbridge (Intel 865G) on the motherboard, I took the heatsink away expecting to find silicon grease beneath and found it had a solidified yellow sticky substance on it. I rubbed the surfaces with isopropylic alcohol but it removed nothing. How should I proceed now?
 
Old 08-21-2014, 06:54 AM   #2
thorkelljarl
Senior Member
 
Registered: Jun 2008
Posts: 1,760

Rep: Reputation: 207Reputation: 207Reputation: 207
Another solvent...

Put a drop of Acetone on the hardened paste and wait, in order to see if the Acetone will dissolve it. The Acetone may take the paint off the chip, but that shouldn't matter; just don't get it on anything else You can also try Benzene if Acetone doesn't work.

If you can soften but not dissolve the paste, scraping it up starting from the edge of the mass with the sharp edge of a plastic card might help.

Last edited by thorkelljarl; 08-21-2014 at 07:07 AM.
 
Old 08-21-2014, 07:57 AM   #3
Soadyheid
Member
 
Registered: Aug 2010
Location: Near Edinburgh, Scotland
Posts: 916

Rep: Reputation: 156Reputation: 156
Was the heatsink clipped to the chip? If so you'll need to use grease when you re-attach it. If it's not clipped you'll need to stick it. I remember using a two part system when replacing heatsinks on the original Sun E3000/4000 CPU/Memory boards; you put the paste on the chip and painted the activation fluid on the heatsink then held them together for a couple of minutes to set. (The crappy plastic heatsink clips used to break.) Nope! I can't remember a brand name. As mentioned by Thor above, you have to ensure both chip and heatsink are perfectly clean before re-fixing.

Play Bonny!

 
Old 08-21-2014, 09:00 AM   #4
onebuck
Moderator
 
Registered: Jan 2005
Location: Midwest USA, Central Illinois
Distribution: SlackwareŽ
Posts: 11,675
Blog Entries: 10

Rep: Reputation: 1584Reputation: 1584Reputation: 1584Reputation: 1584Reputation: 1584Reputation: 1584Reputation: 1584Reputation: 1584Reputation: 1584Reputation: 1584Reputation: 1584
Member Response

Hi,

I have used petroleum distillate to remove pads from chips. You can use WD-40 (Trade-name) to remove. Acetone can damage the Motherboard. Another thing that could be used is denatured alcohol but you should use caution when using this. Just be careful not to damage the silk screen or circuit board by lifting traces on the board.

Hope this helps.
Have fun & enjoy!
 
1 members found this post helpful.
Old 08-21-2014, 12:26 PM   #5
stf92
Senior Member
 
Registered: Apr 2007
Location: Buenos Aires.
Distribution: Slackware
Posts: 3,383

Original Poster
Rep: Reputation: 50
Thanks guys! "Was the heatsink clipped to the chip?": yes, by two spring wire fasteners. The chip is 4 x 4 cm with a tower in the center, with a 1 x 1 cm base and 1 mm tall. The flat top of the tower is metallic and here is the glue deposited. But this surface I touched it, and though colored by the glue the finger does not notice roughness. There is kind of a rubber layer on the chip too, outside the tower, to help level the tiny top surface with the rest of the top, under the action of the springs pulling the heatsink downwards, some of it having been removed when I pulled the heatsink away.

How I envy people knowing to say something with few words, but the WD-40 I hope will do its job. It seems a universal remedy to fix the widest class of problems, a sort of panacea.
 
Old 08-21-2014, 12:48 PM   #6
onebuck
Moderator
 
Registered: Jan 2005
Location: Midwest USA, Central Illinois
Distribution: SlackwareŽ
Posts: 11,675
Blog Entries: 10

Rep: Reputation: 1584Reputation: 1584Reputation: 1584Reputation: 1584Reputation: 1584Reputation: 1584Reputation: 1584Reputation: 1584Reputation: 1584Reputation: 1584Reputation: 1584
Member Response

Hi,

For WD-40, be sure to spray on a rag and not on the board to wipe the surface.
 
1 members found this post helpful.
Old 08-21-2014, 01:06 PM   #7
onebuck
Moderator
 
Registered: Jan 2005
Location: Midwest USA, Central Illinois
Distribution: SlackwareŽ
Posts: 11,675
Blog Entries: 10

Rep: Reputation: 1584Reputation: 1584Reputation: 1584Reputation: 1584Reputation: 1584Reputation: 1584Reputation: 1584Reputation: 1584Reputation: 1584Reputation: 1584Reputation: 1584
Member Response

Hi,

One other note is that you can use a single edge razor blade (plastic/metal) be sure not to scratch the surface. If you do scratch then be sure to use enough compound to fill scratch(s) and so to dissipate to the heat sink.
 
Old 08-21-2014, 03:06 PM   #8
stf92
Senior Member
 
Registered: Apr 2007
Location: Buenos Aires.
Distribution: Slackware
Posts: 3,383

Original Poster
Rep: Reputation: 50
Thanks onebuck. I'll try to do a fine job.
 
  


Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Northbridge need drivers in Debian? miros84 Linux - Hardware 8 01-17-2010 01:21 PM
Finding Northbridge and Southbridge tuesday Linux - General 15 04-28-2008 12:37 AM
RedHat: AMD64 Northbridge errors srinu Linux - Software 0 08-07-2006 09:41 PM
Overheating northbridge? nouse66 Linux - Hardware 7 04-26-2006 09:29 AM
Is it another greased-turkey? /bin/bash Linux - General 2 11-28-2003 11:25 PM


All times are GMT -5. The time now is 03:01 AM.

Main Menu
Advertisement
My LQ
Write for LQ
LinuxQuestions.org is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
Syndicate
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
Facebook: linuxquestions Google+: linuxquestions
Open Source Consulting | Domain Registration