Because of the Radiator Position in the case, the watercooler was just recirculating the warm air. By moving the radiator to the bottom of the case, fresh cold air is drawn in through the rad then expelled out of the front by the extractor. The pipe work needed extending and joining with aluminium tube. This involved draining the system & refilling - not a lot of fun. This had to be done using an oral syringe! The pipe work still needs a bit of a tidy but the system is now cold inside when the door is opened.
Thermaltake Graphics Cooler
This works in conjunction with the processor watercooler to cool the overall system. It is intended to fit in 2 pci slots but will not fit in the G4 cases using the conventional method. However it fits a treat by removing the Quicksilver 120mm fan so that air is drawn in from the holes on the side of the case and blown out of the back of the case. At slow speed (there are 2 speed settings) the graphics chip maxes at around 50 degrees when playing Doom 3. Used to be around 79 degrees. It is also virtually silent on slow speed.
Link to thermaltake Tidewater:
See Photos Below: