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Loud power brick?
Posted: Mon Oct 23, 2006 3:27 pm
by MaloventEvil
Hey guys, my girlfriend just got a 14" T60p, and i noticed that her power brick doesn't make noise!!! She has a Revision 5 and it's silent, but my revision 3 is loud! Anyone else having the same problem?
Posted: Mon Oct 23, 2006 6:05 pm
by rattlehead
Wow, I have owned a lot of Thinkpads. I used to work at a company that used IBM exclusively (over 500 users probably 200 or so Thinkpads) and I have never seen a power brick that makes "noise". What kind of noise does it make? I am pretty sure there are no moving parts in there, so, um, wow.
Posted: Mon Oct 23, 2006 6:14 pm
by perry_78
If it's noisy, have it replaced
You happen to be lucky enough to hear either the transformer or capacitors switching it seems
Posted: Mon Oct 23, 2006 6:26 pm
by christopher_wolf
perry_78 wrote:If it's noisy, have it replaced
You happen to be lucky enough to hear either the transformer or capacitors switching it seems
There are some variances, but usually it is a very quiet thing that is only audible in a room or when you put your ear close to the brick.
I wonder what the differences in the Revisions are to cause such a difference.
Posted: Mon Oct 23, 2006 11:59 pm
by NS
AC producing loud \"sounds\" means something is loose inside. Please contact IBM/Lenovo support and tell them to replace another AC for you.
Posted: Tue Oct 24, 2006 3:25 am
by gator
Try using a power supply with a "ground" connection (3 holes) and see if your problem persists. If it does, please get it replaced.