Thermal paste CPU

bubbletopspoon · Apr 6, 2014

Hey guys, a simple issue here.

Ive ordered a new CPU cooler that's meant to come tomorrow. When i take the old heatsink off can i just put the new one on, or will i need to apply new thermal paste to the CPU. If so can i just scrape the old paste off apply new paste or do i need to do it in a special way. Or like i said, can i jsut put the new heatsink on?

Alec Mowat · Apr 6, 2014

Always apply new thermal paste.

Use 99% isotropy alcohol and a coffee filter
http://www.walgreens.com/q/isopropyl+alcohol

Remove all the old thermal paste, put a rice sized line of the new thermal paste. Thermal paste is not an insulator it's just used to fill the cracks between the metal on the heat sink and the metal on the CPU. You just need a small amount.

Eduello · Apr 6, 2014

Do this: http://www.youtube.com/watch?v=x9MJUuU58vE apply the paste that comes with the new cooler and then install the new cooler.

faster23rd · Apr 6, 2014

You need to clean your CPU's integrated heat spreader from the old thermal paste gunk. Thermal paste dries over time so it becomes unusable again if applied, making reapplication necssary. Simply putting the heatsink back on will make your cooling worse as the heat from the CPU cannot conduct properly to the heatsink.

You need to clean your CPU with tissues/lint-free cloths mildly doused with 70% or more isopropyl alcohol, make sure it's thoroughly clean before you reapply the apste and mount your CPU.

bubbletopspoon · Apr 6, 2014

ah ok thankyou very much guys

Love this site, so helpful

bubbletopspoon · Apr 6, 2014

http://www.amazon.co.uk/500ml-Isopropyl-Alcohol-pure-ISOPROPANOL/dp/B00AMZ10SE

is this fine to use then? saw someone use it in a video so assume it is

Eduello · Apr 6, 2014

Yes, that's fine.

Alec Mowat · Apr 6, 2014

Yah that's fine. You can just buy it at a pharmacy, doesn't need to be anything special. Just make sure it's 99%

bubbletopspoon · Apr 6, 2014

thank you

bubbletopspoon · Apr 6, 2014

guys, last thing, does it really matter what thermal paste i get, like is this ok?
http://www.scan.co.uk/products/akasa-ak-455-hi-performance-thermal-compound-15gr-syringe

bubbletopspoon · Apr 6, 2014

it has good ratings and people have said it good so is it alright?

Alec Mowat · Apr 6, 2014

bubbletopspoon :

Look at the reviews to know which is best:
http://www.tomshardware.com/reviews/thermal-paste-performance-benchmark,3616-18.html

The Noctua NT-H1 is great.
I imagine your new heatsink will come with thermal paste already though, they generally have a line already on.

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