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Squealing power brick
Posted: Mon Feb 05, 2007 3:30 pm
by mcvosi
I noticed a very high pitched squealing sound coming from the power brick for my T60p. If I put my ear up to it, it's fairly loud.
Is anyone else's like this?
Edit: this is with a 90W adapter.
Posted: Mon Feb 05, 2007 3:36 pm
by tpribors
I placed the power brick in a window sill and I can clearly hear it too... It also varies in pitch and intensity, but sounds like a random pattern. I can't find anything related to the usage that changes it.
Posted: Mon Feb 05, 2007 5:01 pm
by Rebelgium
I've got the same here. (also 90W btw)
It's only annoying when i'm in a real quiet invironment...
Posted: Mon Feb 05, 2007 5:34 pm
by K. Eng
This is unfortunately something that power supply manufacturers still have to work on.
My T4x went through 3 power bricks before I got one that was quiet
Posted: Wed Feb 07, 2007 8:39 am
by Scratch
It took me 2 returns as well before I got a quiet one.
Posted: Wed Feb 07, 2007 6:22 pm
by romka
I've noticed it only does it when it 'trickles' power - and not full-on charging.
I will be returning mine to ibm in the due-time.