Support in other languages: 
Showing results for 
Search instead for 
Do you mean 

Welcome to the Forums!

Welcome to Lenovo's Peer-to-Peer Discussion Community!
Please note our guidelines. How to register and login and Community FAQs.

Help Lenovo Shape the Future of PCs

Take the ownership survey. Share your ideas with our product team

Community Spotlight

Visit the Community Blog

Are you ready for Windows 10?

Get to know Windows 10
Visit the Windows 10 Support Center
Reply
What's DOS?
Posts: 1
Registered: ‎08-21-2008
Location: Issaquah, WA
0 Kudos

Chirping sound from my AC Adaptor

Hello,

 

I bought an R61 about 14 months ago and it came with a 90W AC Adapter.  About 1 month ago I noticed that the adapter has started to get very hot and make a soft chirping noise.  Also, the laptop seemed to get especially hot while using it.  I switched to another lenovo 90W adapter that I have for my work laptop and everything seems fine with my R61.  Any idea what the problem could be with the adapter?

 

Thanks,

Kevin

Posts: 5,184
Solutions: 560
Registered: ‎11-23-2007
Location: United States
0 Kudos

Re: Chirping sound from my AC Adaptor

welcome to the forum.

 

it could be a noisy step-down transformer, DC converter, or capacitor... it's tough to say.   it's probably not faulty—just not quite up to spec.

 

if it bothers you then it's best to get it exchanged under warranty.

ThinkStation C20      ThinkPad X1C · X220 · X60T · 600Microsoft MVP

Bit Torrent
Posts: 3,212
Registered: ‎02-16-2008
Location: Australia
0 Kudos

Re: Chirping sound from my AC Adaptor

sometimes wirings in the adapter is not as tight as it suppose too. If it is causing noises and overheating it is best idea to get it exchanged for your own safety, since you still got warranty.