Compatibility and Installation Tips

Thermaltake DuOrb Extreme is designed for mainstream and high-end graphics accelerators with high heat dissipation rates. You can’t install the new cooler on any ATI Radeon HD 47xx/46xx/45xx graphics cards although it may fit just fine onto Nvidia GeForce 8600 series. In order to install the cooler onto any of the graphics cards you must attach two steel retention plates to its base using the enclosed screws and insert threaded mounting spindles into the loops on their ends:

After that turn the cooler upside down and put the graphics card on top of it. Use the enclosed bushes with washers to push the graphics card against the cooler. Pretty quick and simple. And of course, do not forget about thermal interface.

When we installed this cooler onto a Radeon HD 4890 graphics accelerator the left heatsink hit against the output bracket grill, although we still completed the installation successfully:

We installed Thermaltake DuOrb Extreme cooler with a Thermalright VRM2 heatsink onto Radeon HD 4890. It looked as follows:

This is what the graphics card with the cooler looks like inside the system case:

We couldn’t use the original Thermaltake heatsinks for VRM and video memory chips because their sticky layer was so weak that they didn’t hold on any of these chips and were falling off all the time. Moreover, we were pretty concerned with their efficiency considering how small they actually were.