Backstory, I am repearing my Nans 2014 all in one PC. Lenovo won't help as it is out of warranty but the device is needed for her volunteering. For weeks she said the power led would stay on after shutdown on Win10 and the only way to turn it off is by the plug. Then the device only lights up, fans spin and shuts back off. I plugged in an external keyboard and it lights up but after pressing it the device turns off. You occasionly hear the windows startup noise. Yester
day i did get a picture and the device worked fine for a while until i turned it off and it didnt come back on. Is this a power supply issue? It uses a external brick like a laptop, could it be this or the internal power connector?
In NOV 2021, i added 4gb of ram and swapped the dying hdd for a ssd but this didnt effect it as this issue has arised recently
I have cleaned fans and reapplied thermal paste and still same issue
Attached are images of PSU, and the device