Dell Mini 9 - Buzzing Noise!

40974111 · Post by **40974111** » Tue Aug 04, 2009 5:39 am

I've been sitting in my quiet room tonight and have noticed a buzzing noise eminating from my Dell Mini9. It wasn't there before. It sounds like electrical noise, and appears to be eminating from the underside - opposite the touch pad. Any ideas what could be causing this noise?

Could the Mini 9 recieving a knock or two (while off, or on standby) have changed things?

I'm very confused, and quite annoyed. Late at night, with very little other sound, this electrical type noise is audible, and of a very annoying sound character.

Any ideas whats going on? and anything I can do about it?

_sluimers_ · Post by **_sluimers_** » Fri Aug 07, 2009 10:11 am

Turn down your speakers

Post by **CA_Steve** » Fri Aug 07, 2009 2:39 pm

Does it do it when plugged into the charger or standalone or both?

40974111 · Post by **40974111** » Mon Aug 10, 2009 6:10 am

speakers on mute

both on charger and stand alone (although the charger also makes a faint buzzing noise)

Post by **CA_Steve** » Mon Aug 10, 2009 7:49 am

Raise and lower the screen brightness and see if the noise changes.

40974111 · Post by **40974111** » Mon Aug 10, 2009 1:58 pm

checked the brightness bit as well, it seems to be constant.

Post by **CA_Steve** » Mon Aug 10, 2009 9:03 pm

so, it's probably not the power circuitry for the charger/battery or the display... usually a buzzing sound is associated with an inductor coil in a power circuit...could be your cpu power regulation or something else. is it under warranty? maybe it's a replaceable/fixable thing.