If the fan doesn’t spin but the the laptop makes noise, probably it’s coming from the hard drive. Back up all personal data as soon as possible and replace the hard drive.
Also, you can remove the hard drive and stat the laptop. If the laptop still makes noise, most likely it’s bad fan.
– Failed DC power connector. If the battery charges only after you adjust the position of AC adapter tip inside the connector, most likely this the DC jack failed.
In order to troubleshoot this, you’ll need some spare parts: either new working inverter or known good backlight lamp.