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Closer Look: NVIDIA GeForce FX 5900 Ultra Graphics Card

The NVIDIA GeForce FX 5900 Ultra reference graphics card, which we managed to get for review, looks very impressive:

  

You can see at the pictures that NVIDIA has finally given up the odious FlowFX cooling system and replaced it with a more traditional though still impressively big cooler with a radial flow air pump:

This cooler works in two modes on NVIDIA GeForce FX 5900 Ultra. Each mode has its own fan rotation speed. Moreover, the card automatically turns of high-speed mode from time to time depending on the temperature shown by the integrated monitoring system. However, even in high-speed mode the new cooler is much quieter than the notorious FlowFX.

Nevertheless, even though they gave up the FlowFX cooling system the card will still take two PCI slots in your system: first, the cooler is quite high and second, the card is equipped with a double-side heatsink, which also takes the reverse side of the card:

The cooler is slightly shifted from the center of the graphics chip: the fan axis is located more to the left of the graphics chip, so that the fan blows the air stream to the heatsink ribs located right above the chip and hence cools the core more efficiently:

To cool down the graphics memory chips, there are separate passive aluminum heatsinks:

The heatsink on the front side of the card features special ribbed parts cooled down by the airflow from the active chip cooler. There are also special heat conductive pads, which fit between the heatsink and the memory chips surface:

  

There is a simpler looking passive heatsink at the bottom of the card:

  

 
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