Advantages of the Noctua 60mm fan over the Nexus 70mms:
1. The Noctua is slightly quieter than the Nexus.
2. Noctua fans are readily and easily available worldwide, whereas the Nexus fan is apparently difficult to source in certain parts of the world.
Two Colors to choose from:
- 2 piece Noctua fan mount - Fan and fan screws not included.
Flip the Xbox over and remove the 6 Torx T20 screws from the bottom. Lift the top over the console. Unplug the hard drive IDE and power. Remove the 2 screws in between the DVD drive and hard drive tray with a Torx T9. Lift the hard drive plastic tray out. On the far left side remove another Torx T9 screw to the left of the DVD drive. Lift it out and unplug the IDE and power cables from the motherboard. Set the DVD drive aside.
The Rear case fan can be removed by unclipping the clips at the lower sides of the fan that secure it to the bottom of the case. I recommend using something like a flat screwdriver and carefully prying them away from the fan sides. With a little finesse you can disengage them from the fan and lift the fan up and out of the back tabs.
Please see the pictures for how the 2 piece mount attaches to the Noctua 60mm fan.
This design has the rear tabs that slide down into the case rear and indents for the tabs on each side of the original fan. This will keep the fan locked into place and not move. Be careful when removing your original fan and installing the new one as to not break those tabs off. The console is 20 years old now.