HOW TO: Install ACCELERO S1 w/ Turbo Module on ATi HD3870

The Accelero S1 is the best value for money GPU Heatsink and gives you great result with the smallest effort.
As an add-on, Turbo Module helps the Accelero S1 Heatsink to improve even more the low temperatures it achieves.
Both products are from Arctic Cooling, and combined are a must-have solution.

The Accelero S1 and Turbo module packages include:

Accelero S1 Heatsink with pre-applied thermal paste

Heat Spreaders with double-sided tape
The heat spreaders, the plate and the rear grill will not be used on the HD3870, because it already has a nice and effective heat-spreader unit

Turbo Module for the Accelero S1

Installation

Remove the 4 screws and the backplate of the stock HD3870 Heatsink, unplug the fan wire and detatch the module from the card

Remove the stock thermal paste carefully from the ATi chip, using cotton ear-buds and a clean sunglass cloth

Attach the Accelero S1 carefully so that it is correctly alligned with the holes and the hole card. Start screwing the stock (or the kit's) screws one by one, turn by turn, so that the pressure is applied uniformly, until all are screwed tightly.

Attatch the clips carefully and make sure that you hear the "click".
Attach the Turbo Module and connect it to your preferred power supply (in my case the ZALMAN ZM-MFC1)

Your new heatsink is ready. Turn on your PC and smile at your new temperatures!

In my case the temperature drop was 45 degrees, the exact half of the 90 degrees my card reached under stress tests!
Here is an example playing Crysis, before (68 degrees) and after (38 degrees)
The red line is the GPU temperature