Arduino nano 3.0 led dim then turns off

I found an old arduino nano 3.0 but it does not turn on and is not recognized by the computer. When first connected, the power led is turned on very dimly and then goes off after 2-3 sec. It is completely removed from a circuit and the resistance from ground to 5v is 1800 ohm. I already tried a different usb cable that I know works.

Any idea what is wrong with it?

Have you measured the 5v pin?


I had not actually. It is 0.3v. So, the main chip is dead?

Try powering from the Vin rather than USB. This may work and would then indicate a problem with USB power.