Have a IMAC Model No A1418, Is it worth trying to get it going
Can I get her running
iMac Line (2012 and Later)
What year? (There are about 8 of 'em from '12-'17)
If you look at the underside of the pedestal you'll find the serial number.
Plug that in here to see the specifications of the iMac: Check Your Service and Support Coverage - Apple Support
If it's the oldest, I wouldn't put much time, effort or money into it.