[ubuntu-uk] Diagnostics tools

[Barry Titterton]

On Mon, 2010-10-04 at 16:32 +0100, pmgazz wrote:

> One of mine's making a noise like an idling black cab

This is definitely the fan motor bearings. I had one go just like that
last year. The motor gets stuck in a resonance mode before it gets up to
full speed, hence the noise and poor cooling performance. A well judged
shock can help the motor to drive through the resonance zone and get to
full speed but things will only get worse over time.

Barry