Should I put new thermal paste on my cpu after getting new motherboard?

[mitchmm]

So I'm going to be returning my motherboard and getting a new one soon. I'll obviously have to remove all my components. When I get a new board back should I put new thermal paste on the cpu for my cooler? I'm using a h100i and using a i5 4670k. If I do need to put new paste on, any recommendations?

 

[SkylerJacobs]

Yes, you must use new thermal paste anytime you take the CPU cooler off of the CPU.

 

[fkr]

you must completely clean the surface of the cpu and cooler then use something like this

http://www.newegg.com/Product/Product.aspx?Item=N82E16835100007

if you want to buy some no residue cleaner get this

http://www.newegg.com/Product/Product.aspx?Item=N82E16835100010

 

[IntelTurtleFan]

Yes. New thermal paste must be applied every time you change the cooler or mobo.
You must take the old stuff off with 70% or higher alcohol and cotton balls.

 

[mbarnes86]

Hi

You definitely need to clean the old thermal paste off i5 and heat sink
Clean i5 before removing it from the socket.

Do not apply too much paste, a pea size is too large
I always apply paste to heat sink if the area of contact on heat sink is smaller than surface of CPU
.
There is debate whether to apply a thin uniform layer or a few rice grains in the centre and let pressure distribute the thermal material

Intel seems to favour the second for the type they put on standard heat sinks

ArCtic silver 5 has a good reputation

http://www.tomshardware.co.uk/thermal-paste-performance-benchmark,review-32804.html

Another Toms hardware review said salad cream was quite good !!


Regards
Mike Barnes