Trouble with Arduino; making loud sounds

Development Tools IDE 1.x
1

I'm trying to connect my Arduino to my computer but when I plug the cable in the leds flash a few times and then it lets out a high pitched tone that doesn't stop. I'm trying to build a robotic arm, and I've done everything except uploading the code.

I haven't uploaded the code yet, but I already know that it works because I previously used a different board of the same model. It worked perfectly, but got burned out after some bad choices. I believe both of the boards are Arduino Uno's.
I am also receiving the error:

avrdude: stk500_getsync(): not in sync: resp=0x00

I've tried following some suggestions on this site and some other places, but they don't work.
My main concern however, is to fix the noise. Any suggestions would be greatly appreciated.

2

What's making the tone, the Arduino or the PC? Is anything else connected to the Arduino at that point?

Uno does not have a built-in sounder, so any other component making the sound (e.g. a cap) may be faulty.

I would try to return the Uno for replacement.

Paul

3

Try powering it from an external source 9 to 12V through the input power jack nothing else. If it is a UNO and it still makes a noise then it is faulty, possibly dangerously so.