How to replace thermal paste and thermal pads on iMac 21.5" Late 2009 ATI Radeon HD 4670

Описание: You can find this set in our e-shop here
http://www.computer-systems.gr/el/con...
on ebay here http://www.ebay.com/itm/390860127588
on Amazon.com here
https://www.amazon.com/Thermal-paste-...
Amazon.co.uk here
https://www.amazon.co.uk/d/Computers-...


In this video we demonstrate the application of K4-PRO K5-PRO on ATI Radeon HD 4670 for Apple iMac 21,5 Late 2009.

When you should replace the thermal paste / pads in your computer:

Depending on the quality of the thermal paste that is installed inside your computer, you should replace it every 6 to 12 months. Thermal paste and thermal pads should also be replaced every time that the heatsink is removed (for cleaning, upgrade or other maintenance). Replacing the themal pads and the gummy thermal paste that is used by Apple on the memory chips is very important if the heatink is removed because if you reuse the same thermal pads or paste the heastink is imposible to fit perfectly again and the component will be overheated and will fail soon.
If your computer is overheated or turns off after a few hours of use. In this case the entire heatsink system must be cleaned imediatelly and all therma paste and thermal pads must be replaced.
Every 6 months if you operate your computer in a dusty or smoking enviroment.

K4-PRO K5-PRO thermal pastes are developed and produced by Computer Systems laboratories research team. These products were developed as part of our BGA rework research project with the support of Greece and Europian Union. These two products are designed to reduce the chances of video board failure for reasons related to overheating.

You can purchase K5-PRO and K4-PRO here:
Greece ► https://computer-systems.gr/products/
United Kingdom ► https://tinyurl.com/bdnx39hs
France ► https://tinyurl.com/2x94jez8
Germany ► https://tinyurl.com/48vskjja
Italy ► https://tinyurl.com/yjuv2s8z
Spain ► https://tinyurl.com/2tt9hwtb
Netherlands ► https://tinyurl.com/493c6f49
Russia ► https://computer-systems.gr/products/
Ukraine ► https://tinyurl.com/y6r2uuwe
USA ► https://www.amazon.com/dp/B01H3D9ZE8
Canada ► https://www.amazon.ca/dp/B01H3D9ZE8
Mexico ► https://www.gicket.com/
Japan ► https://www.amazon.co.jp/dp/B01H3D9ZE8
Australia ► https://tinyurl.com/mrywu89t
Singapore ► https://www.amazon.sg/dp/B01H3D9ZE8
Poland ► https://allegro.pl/uzytkownik/Compute...
Slovakia ► https://allegro.sk/pouzivatel/Compute...
Czech ► https://allegro.cz/uzivatel/Computer_...
Rest of the World ► https://computer-systems.gr/products/