Observing whistling sounds from PSU during idle operation
Observing whistling sounds from PSU during idle operation
This PSU noise occurs even when the system is idle, without any fan activity. The model in question is the Thermaltake Toughpower SFX 850W.
the Thermaltake Toughpower SFX series has often been considered of lower quality.
it might be affected by the components included or simply due to manufacturing issues.
if it's still new, returning it for a refund could be an option and you might receive a better product.
if it's past the return period but remains under warranty, you could try an RMA for a replacement and sell it cheaply, using the proceeds for a more reliable model.
i don't typically work with compact builds, so i haven't encountered any particularly dependable choices.
i'm just aiming for a product with a strong rating and around a 10-year warranty.
i should check sites like newegg, amazon, micro center, etc.
tom has some threads about power supply stability from the past years.