2013Sled forum
High-pitched whistling noise from Ultra 1 sled bottom
13 years old. Gear and prices may have changed since.
What the thread found
- A CRT monitor can produce a high-pitched screeching sound that may be more pronounced when cold and diminishes as the device warms up
- Dust accumulation on the monitor tube can cause an audible singing or whistling noise
Depends on
- The original report did not confirm whether the noise source was definitively the sled or the monitor
- No resolution was documented in the thread
- Advice applies specifically to systems using CRT monitors with the Ultra 1 setup