LinuxQuestions.org
Share your knowledge at the LQ Wiki.
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 09-01-2009, 02:07 PM   #1
abefroman
Senior Member
 
Registered: Feb 2004
Location: Chicago
Distribution: CentOS
Posts: 1,263

Rep: Reputation: 53
Cpu fan stuck to the cpu, how do I get the cpu out?


My Cpu fan is stuck to the cpu, how do I get the cpu out?

It appears the thermal grease is creating a bond between the cpu and cpu fan's heat sink, what is the best way to remove the fan and heat sink in this situation?

TIA
 
Old 09-01-2009, 02:53 PM   #2
eyemeansit
LQ Newbie
 
Registered: Dec 2005
Location: Florida, USA
Distribution: Ubuntu
Posts: 6

Rep: Reputation: 1
do the twist...

Is the cpu still on the motherboard? If so, a gentle twist of the fan usually will separate the two.
 
Old 09-01-2009, 03:01 PM   #3
abefroman
Senior Member
 
Registered: Feb 2004
Location: Chicago
Distribution: CentOS
Posts: 1,263

Original Poster
Rep: Reputation: 53
Quote:
Originally Posted by eyemeansit View Post
Is the cpu still on the motherboard? If so, a gentle twist of the fan usually will separate the two.
I just tried that it bent a few pins on the CPU and the heatsink was still stuck to it.

Shoot!
 
Old 09-01-2009, 06:09 PM   #4
thorkelljarl
Senior Member
 
Registered: Jun 2008
Posts: 1,736

Rep: Reputation: 196Reputation: 196
Try alcohol...

See if you can wet the outer edge of the hardened cooler paste, the interface of the CPU cooler and the CPU, with some ethanol. Use an eyedropper or drip the ethanol from the end of a pin, waiting a while, and applying it again, several times.

Not too much, not dripping it all over anything else, but of course in just the right place and from all directions, if you can manage it.

Then twist the cooler again, but just a little bit and in both directions.

If that does not work, try with benzine, then WD-40.

http://en.wikipedia.org/wiki/Ethanol
http://en.wikipedia.org/wiki/Benzine

Be sure to post back with what works, if anything works.

Last edited by thorkelljarl; 09-01-2009 at 06:17 PM.
 
Old 09-02-2009, 11:26 AM   #5
business_kid
Guru
 
Registered: Jan 2006
Location: Ireland
Distribution: Slackware & Android
Posts: 6,489

Rep: Reputation: 566Reputation: 566Reputation: 566Reputation: 566Reputation: 566Reputation: 566
I think you are splitting in the wrong place. I would leave the heatsink on the cpu, and lift the fan separately. If the heatsink and cpu are glued, they are meant to stay, and the cpu is nearly always soldered to the m/b. The fan will unscrew (usually). If the cpu is gone, throw away the lot.

A trick to separate is to seek to get in with a blade, a narrow knife. Sometimes this works, other times it is unwise. I will trust your judgement not to force anything you want to reuse.
 
Old 09-02-2009, 12:30 PM   #6
lazlow
Senior Member
 
Registered: Jan 2006
Posts: 4,362

Rep: Reputation: 171Reputation: 171
Most current CPUs are NOT soldered on the motherboard, they use sockets instead. Some of the really small motherboards do use soldered on CPUs (intel atoms among others).

Time and patients are your best bet.

Benzine is highly toxic(even chemists avoid it these days), which is why you need a special permit to get it in most countries. Rubbing alcohol and acetone(finger nail polish remover) are common solvents that work pretty well. Just be careful.
 
Old 09-02-2009, 12:34 PM   #7
H_TeXMeX_H
Guru
 
Registered: Oct 2005
Location: $RANDOM
Distribution: slackware64
Posts: 12,928
Blog Entries: 2

Rep: Reputation: 1269Reputation: 1269Reputation: 1269Reputation: 1269Reputation: 1269Reputation: 1269Reputation: 1269Reputation: 1269Reputation: 1269
I think we need a bit more info on your system, like did you build it yourself or is it from a company ... like Dell ?

Usually the CPU and heat sink are only connected by the thermal paste. There is also usually no risk of bending any CPU pins at all, because the CPU has a lever mechanism that locks it in place on the mobo, until you get the heatsink off you cannot even move or remove the CPU.

Still, this is only the most common case, the way I've always seen it. If your computer is either very old or made by some company in some special way, or if it's something non-standard then I don't know what the case may be. Can you take a picture of it in this case ?

Off any computers I've ever had I could just pull the heat sink right off, just straight out away from other components (to avoid damage).

Last edited by H_TeXMeX_H; 09-02-2009 at 12:36 PM.
 
Old 09-02-2009, 12:47 PM   #8
lazlow
Senior Member
 
Registered: Jan 2006
Posts: 4,362

Rep: Reputation: 171Reputation: 171
If the cooler has not been pulled in a long time or the machine has gotten hot, it is not unusual for the cpu to pop out of the socket(with lockdown still in place) when trying to separate the two(cpu/cooler).
 
Old 09-02-2009, 01:00 PM   #9
sreeroopmarar
LQ Newbie
 
Registered: Sep 2007
Posts: 1

Rep: Reputation: 0
IP(Isopropanol)is used between them.Or just twist slowly .
 
Old 09-02-2009, 01:30 PM   #10
Quakeboy02
Senior Member
 
Registered: Nov 2006
Distribution: Debian Squeeze 2.6.32.9 SMP AMD64
Posts: 3,245

Rep: Reputation: 121Reputation: 121
Quote:
Originally Posted by lazlow View Post
Time and patients are your best bet.
Patience, lazlow, patience.


I too would want to hear what system and CPU this is. The only time I've encountered a cooler glued to the chip was on an Nvidia video board.
 
Old 09-02-2009, 01:50 PM   #11
GrapefruiTgirl
Guru
 
Registered: Dec 2006
Location: underground
Distribution: Slackware64
Posts: 7,594

Rep: Reputation: 550Reputation: 550Reputation: 550Reputation: 550Reputation: 550Reputation: 550
Quote:
Originally Posted by Quakeboy02 View Post
Patience, lazlow, patience.


I too would want to hear what system and CPU this is. The only time I've encountered a cooler glued to the chip was on an Nvidia video board.
It would indeed be good to know what the hardware is.

I've never had this happen on modern hardware; however, on old(er) PII machines and the like, I've found the heatsink "glued" to the CPU. It was like that from the factory, with some sort of "heat-transferring" double-sided sticky stuff. It was REALLY stuck -- twisting probably would not have got them apart, so I used an Olfa/Xacto knife & screwdriver

Another possibility is if Arctic Silver compound was used. As I understand, that stuff does dry hard, like glue.

Besides these cases, I agree with Quakeboy that most commonly, video cards seem to have the heatsinks glued to the GPU :|
 
Old 09-02-2009, 02:25 PM   #12
Quakeboy02
Senior Member
 
Registered: Nov 2006
Distribution: Debian Squeeze 2.6.32.9 SMP AMD64
Posts: 3,245

Rep: Reputation: 121Reputation: 121
Quote:
Another possibility is if Arctic Silver compound was used. As I understand, that stuff does dry hard, like glue.
Don't know where you heard that. I've been using the stuff for a very long time and it never seems to dry out completely, much less turn tacky or sticky.
 
Old 09-02-2009, 08:08 PM   #13
GrapefruiTgirl
Guru
 
Registered: Dec 2006
Location: underground
Distribution: Slackware64
Posts: 7,594

Rep: Reputation: 550Reputation: 550Reputation: 550Reputation: 550Reputation: 550Reputation: 550
Quote:
Originally Posted by Quakeboy02 View Post
Don't know where you heard that. I've been using the stuff for a very long time and it never seems to dry out completely, much less turn tacky or sticky.
OK, I can be wrong

I guess it's another product -- I *thought* Arctic Silver was the one that dries hard, but apparently not.

Sasha
 
Old 09-02-2009, 08:21 PM   #14
GrapefruiTgirl
Guru
 
Registered: Dec 2006
Location: underground
Distribution: Slackware64
Posts: 7,594

Rep: Reputation: 550Reputation: 550Reputation: 550Reputation: 550Reputation: 550Reputation: 550
http://www.arcticsilver.com/arctic_s...l_adhesive.htm

.. UPDATE -- Here's the Arctic Silver Adhesive I had been thinking of. Note that it's NOT intended for use with CPU's

Sasha
 
Old 09-03-2009, 08:30 AM   #15
onebuck
Moderator
 
Registered: Jan 2005
Location: Midwest USA, Central Illinois
Distribution: SlackwareŽ
Posts: 11,267
Blog Entries: 3

Rep: Reputation: 1445Reputation: 1445Reputation: 1445Reputation: 1445Reputation: 1445Reputation: 1445Reputation: 1445Reputation: 1445Reputation: 1445Reputation: 1445
Hi,

Artic Silver can be acquired as an adhesive thermal adhesive or thermal paste compound in different grades. The use of adhering cpu & heatsink for older class hardware that did not require to have large dissipation of heat was common.

If you find the need to remove the heatsink from the cpu that has been glued then you are better off just replacing the cpu and heatsink with a new one. You could then add a HSF (Heatsink fan) to the cpu if space allows. Some searching an you will still find the manufacture cpu with heatsink applied.

Artic Silver Thermal compound can tend to dry out over time. I've had to clean and re-paste the compound on a few.

I've used the 'Arctic Silver Thermal Adhesive' in the LAB when using small footprint equipment that used the Pentium Class processors. But that was when building the equipment. One shot install. Once you use the adhesive you had better set it right. One Shot!

Yes, Thermal Adhesive is the same technique used for video adapters and/or MB chipsets.
 
  


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
cpu frequency scaling with Pentium(R) Dual-Core CPU E5200 @ 2.50GHz tramni1980 Slackware 5 08-16-2009 08:29 AM
CPU binding - How to modify the CPU affinity mask? Thaidog Linux - General 1 03-15-2008 05:54 PM
CPU Overheat Warning when opening terminal (CPU is not overheating) Virtuality Linux - Newbie 4 05-30-2007 04:10 AM
How to find CPU Cache ? (apart from dmesg|grep CPU) Dark Carnival Linux - Hardware 3 12-22-2005 07:10 PM
please help guys, wrong cpu speed shown with a regular non-mobile cpu !! : ( maku Linux - Hardware 1 01-02-2005 02:03 PM


All times are GMT -5. The time now is 08:33 AM.

Main Menu
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
identi.ca: @linuxquestions
Facebook: linuxquestions Google+: linuxquestions
Open Source Consulting | Domain Registration