New answers tagged case
Actually there is no need to screw the fan! I could not install the fan because it was not SQUARE, it needed a square fan, mine was oval. Got an Arctic F12 PWM, and I installed it in seconds, you just push the fan and it installs without screwing
Have you tried removing the mesh? From the question I cannot tell if you have or not, but the mesh is often in front of the fans to prevent dust getting into the system at all, and for easier access. If you are absolutely certain there are no holes you can always drill them yourself, they may have been a manufacturing error.
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