Not connected correctly to ground?
Not connected correctly to ground?
This behavior seems unusual but could be due to residual electrical energy. Touching the screws causes a shock while the device is off and unplugged, but not when powered on. It suggests the case may retain some charge. This doesn't harm your components but might affect safety if left unattended.
Connect it directly with the power outlet and switch it off. This makes the power cord act as a grounding connection.
Your computer stops sending shocks about 30 minutes after you power it down. You can leave it connected until then.