PC experiences electrical shocks on the motherboard and I/O shield.
PC experiences electrical shocks on the motherboard and I/O shield.
Moved into a new home and started using my PC for a few weeks. Recently, I noticed electric shocks coming from the monitor stand and CPU case. I cleaned it by placing the PC on a wooden floor, but nothing changed. I also tried reconnecting and disconnecting the motherboard wires, yet the issue persists. I’m worried about damaging it and don’t use my PC much now. The Ryzen 5 3500 AMD RX 6600 Asus Prime A320M-K is running at 650W on a PowerLite. I need a fix quickly because I have school assignments. TIA
Computer power supplies are built to connect to AC sockets with grounding; they REQUIRE grounding (the third pin besides Live and Neutral). All components between your computer and the AC mains must be grounded. Without proper grounding, a small amount of AC current can appear on any exposed metal part—enough to cause a mild tingling sensation but not dangerous enough to harm. In theory, you can use the device as-is without damage, but it’s best to plug it into a grounded outlet. You can verify grounding by testing your mains outlets with a multimeter: set it to AC voltage (use high voltage range if needed) and place probes on one Live or Neutral pin while another is on the ground pins. Measure the voltage between Live and ground (115V or 230V) and ensure there’s no reading between Neutral and ground or a very low value.
You're experiencing unusual AC voltage on metal components because the grounding is incomplete or damaged. Your computer remains functional, but this situation isn't safe over time—it suggests the wall outlet or power strip lacks adequate grounding. Test your wall socket using a multimeter or socket tester. If no ground is present, avoid using the PC until it's repaired; the issue lies with the power source, not the device itself. Even if the wall outlet is grounded but the power strip isn't, you're still ungrounded—replace the power strip with one that provides proper grounding.
If your wall outlet is grounded yet you’re using a power strip or extension cord lacking proper grounding, then upgrading to one with a correct ground pin could resolve the problem immediately. However, if the wall outlet isn’t grounded at all, no extension cord will help—you’ll need to either repair the outlet or use a properly grounded one. For a short-term fix, wear shoes with rubber soles, keep a safe distance from metal components of your PC or monitor, and unplug the device when not in use. This approach isn’t risky in small doses but isn’t secure long-term, so addressing the issue properly is recommended whenever possible.
You're welcome! Regarding your concern, it's possible the issue is related to the PC or CPU. The cardboard you tried might have temporarily reduced the shock, but since the problem persists and you still touch it, it could be a hardware or software fault. Keep testing different setups and let me know what happens next. Your frustration is understandable—those small details can be tricky!