What to put between CPU and Heat sink ?

[eyepea]

When a new fan and heat sink assembly is bought, there is a black coloured strip of some material under the heat sink that will sit between the heat sink and top of cpu after the fan is installed on the cpu.

If the heat sink assembly is removed and the cpu is replaced, what can I put between the heat sink and the cpu ? (am not replacing cpu, but replacing m/b)

What is that black coloured strip called ?
What is the difference in 'thermal paste', 'heat sink compound', 'thermal gel', if any ?
I ask because, the black coloured strip is more like a piece of flat chewing gum, instead of being a paste or gel ? Pls excuse my ignorance am not a h/w expert

Where can I buy it ?

Can I re-use the existing heat sink material on top of cpu - it looks uneven and broken.

Can I use something like given in link below:
http://cpc.farnell.com/1/1/31380-heat-sink-compound-25g-tube-200001000-25gm-servisol.html
This is a heat sink compound put between ICs and heat sinks. It is white in colour.

has anyone used something like above? If you use it, will removing the heat sink later be difficult ? That is will this normal white coloured heat sink compound make the heat sink stick hard to the cpu, which will not happen if the black colour strip material is used? Somebody said he heard something like this. Not sure.

btw my cpu is E5300

Thanks very much!

 

[JAASBandara]

Hey Mate..... Sorry i don't know such a thing that you mention above....but most of peoples who assemble PC are use "Thermal Compound" for this purpose....So better way is contact the your Service Center....where that you bought the PC.

 

[eyepea]

thanks, will ask more computer shop guys next week end.
(some chaps said not available and try to sell me a new fan assembly )

Anyone else any clues please ?

The convenience of the black strip like stuff is that one can apply it like thin double side gum tape. So no need to worry to spread it evenly covering entire area.

 

[nadman]

Hey bro ask dinukap4-
http://www.elakiri.com/forum/member.php?u=88060
He had some high quality thermal compound for sale.
Hope this helps

 

[eyepea]

thanks!

btw a friend diagnosed the black stuff as a graphite based thermal pad. Cheap stuff not usually found for sale but comes with some (cheap ) heat sink fan assemblies and supposed to be not so good .

So anyway I will have to clean it up and apply proper thermal compound.