Greetings HW enthusiasts,
The motherboard of one of my system is RIP. When I took out the CPU heatsink+fan, it came out with the CPU firmly stuck to the copper!.
I have tried to separate the CPU from the heat sink without much success. I am afraid if I try any solution it might damage the CPU.
Any suggestion to resolve this 'sticky' issue would be much appreciated.
-- Arun Khan
alcohol loosens anything. But detach the fan as alcohol could damage the winding.
On Mon, Oct 7, 2013 at 1:00 PM, Arun Khan knura9@gmail.com wrote:
Greetings HW enthusiasts,
The motherboard of one of my system is RIP. When I took out the CPU heatsink+fan, it came out with the CPU firmly stuck to the copper!.
I have tried to separate the CPU from the heat sink without much success. I am afraid if I try any solution it might damage the CPU.
Any suggestion to resolve this 'sticky' issue would be much appreciated.
-- Arun Khan -- http://mm.ilug-bom.org.in/mailman/listinfo/linuxers
On Mon, Oct 7, 2013 at 1:51 PM, J T Dsouza jtd1959@gmail.com wrote:
alcohol loosens anything.
:)
Will immersing the cpu in a plate of rubbing alcohol damage the cpu?
But detach the fan as alcohol could damage the winding.
Thanks will ensure this does not happen.
-- Arun
On Mon, Oct 7, 2013 at 7:16 PM, Arun Khan knura9@gmail.com wrote:
On Mon, Oct 7, 2013 at 1:51 PM, J T Dsouza jtd1959@gmail.com wrote:
alcohol loosens anything.
:)
Will immersing the cpu in a plate of rubbing alcohol damage the cpu?
No. BUT isopropyl alchol is usually adulterated with kerosene and naptha. That leaves a white residue. This residue is an excellent insulator. If you get it on the pins, there is some chance of the cpu becoming intermittent. So ideally immerse only the heatsink and cpu without getting the pins into alcohol. OR get unadulterated alcohol - an extremely difficult ask, unless you have friends in the chemical industry.
But detach the fan as alcohol could damage the winding.
Thanks will ensure this does not happen.
-- Arun
On Tue, Oct 8, 2013 at 12:22 PM, J T Dsouza jtd1959@gmail.com wrote:
No. BUT isopropyl alchol is usually adulterated with kerosene and naptha. That leaves a white residue. This residue is an excellent insulator. If you get it on the pins, there is some chance of the cpu becoming intermittent. So ideally immerse only the heatsink and cpu without getting the pins into alcohol.
rubbing alcohol is ~70% pure isopropyl + 30% distilled water.
OR get unadulterated alcohol - an extremely difficult ask, unless you have friends in the chemical industry.
Not really true. 99.95% pure is available but expensive.
Slightly less pure but perfect for contacts is also available.
Another option would be to use acetone.
Best
A. Mani
A. Mani CU, ASL, AMS, CLC, CMS http://www.logicamani.in
On Thu, Oct 10, 2013 at 9:27 PM, A. Mani a.mani.cms@gmail.com wrote:
On Tue, Oct 8, 2013 at 12:22 PM, J T Dsouza jtd1959@gmail.com wrote:
No. BUT isopropyl alchol is usually adulterated with kerosene and naptha. That leaves a white residue. This residue is an excellent insulator. If
you
get it on the pins, there is some chance of the cpu becoming
intermittent.
So ideally immerse only the heatsink and cpu without getting the pins
into
alcohol.
rubbing alcohol is ~70% pure isopropyl + 30% distilled water.
If it leaves a white powdery residue, it is kerosene+naptha
OR get unadulterated alcohol - an extremely difficult ask, unless you
have
friends in the chemical industry.
Not really true. 99.95% pure is available but expensive.
Not quite sure if available in small quantities. It is available in big drums with excellent purity.
Slightly less pure but perfect for contacts is also available.
Another option would be to use acetone.
NEVER use acetone unless you are sure of the encapsulation material. It can chew quite a number of epoxies and plastics. Although CPUs have a ceramic substrate, the metal heatsink to ceramic bond is epoxy.
-
A. Mani -
Arun Khan -
J T Dsouza