When installing the water block please use NONE METAL washers with the shorter screws M3x6mm. This will make sure there will be no connections with the card.
This problem accured with some HD 4870 X2 cards: card does not work with EK cooler, with stock cooler everything ok. Using none metal washers will elimenate this problem. If you need washers please contact us and we will send them for free.

High performance VGA water block for the Radeon HD 4870 X2 series graphic cards. Base is made of electrolytic copper. Top is made of quality acrylic glass. Back ram heat sinks are made of black anodized aluminium. The sealing is preformed by quality rubber washer. Block is mounted with enclosed M3 screws.
Mounting mechanism and fittings are included in price!

Fittings can be used on both side of the block (up and down), the 2 plugs are enclosed!

Technical data:
- dimensions of copper base: 206 x 118,5 x 8mm
- dimensions of acrylic top: 207 x 119,5 x 8mm
- threads: 4 x G1/4
- fittings size: optional
- weight: 970 g


Only compatible with Built by ATI refference design!