![power supply - Disconnecting ATX PSU's ground from mains earth to protect my oscilloscope - Electrical Engineering Stack Exchange power supply - Disconnecting ATX PSU's ground from mains earth to protect my oscilloscope - Electrical Engineering Stack Exchange](https://i.stack.imgur.com/3bwTC.png)
power supply - Disconnecting ATX PSU's ground from mains earth to protect my oscilloscope - Electrical Engineering Stack Exchange
![motherboard - Is it true that PC power supply screws are 'connected' to earthing/grounding pin of the power supply? - Super User motherboard - Is it true that PC power supply screws are 'connected' to earthing/grounding pin of the power supply? - Super User](https://i.stack.imgur.com/SI6y2.jpg)
motherboard - Is it true that PC power supply screws are 'connected' to earthing/grounding pin of the power supply? - Super User
![power supply - 3 wires on a (bipolar) DC plug - what are they for? - Electrical Engineering Stack Exchange power supply - 3 wires on a (bipolar) DC plug - what are they for? - Electrical Engineering Stack Exchange](https://i.stack.imgur.com/iPDt4.jpg)
power supply - 3 wires on a (bipolar) DC plug - what are they for? - Electrical Engineering Stack Exchange
![Amazon.com: Dell Inspiron 15 3511, 15.6 inch FHD Laptop - Intel Core i5-1135G7, 12GB DDR4 RAM, 256GB SSD, Intel Iris Xe Graphics, Windows 11 Home - Carbon Black : Electronics Amazon.com: Dell Inspiron 15 3511, 15.6 inch FHD Laptop - Intel Core i5-1135G7, 12GB DDR4 RAM, 256GB SSD, Intel Iris Xe Graphics, Windows 11 Home - Carbon Black : Electronics](https://m.media-amazon.com/images/W/IMAGERENDERING_521856-T1/images/I/81x8wuiiloS._AC_UF894,1000_QL80_.jpg)