@freemo could always simulate it
@lucifargundam @freemo You need to ensure that the hdd-noise-simulator does still work if the machine is stalled (e.g. thrashing).
Some very old machines had a "computer activity" light that would be extinguished by the idle cpu handler (and switched back on when the idle handler exited).
On that note, don't modem machines still have an HDD activity light? Mine does.