I adjusted my graphics card and checked if the remaining parts of my PC are still functional.
I adjusted my graphics card and checked if the remaining parts of my PC are still functional.
I faced problems with my PC where the motherboard lights flickered but the system failed to start. I suspected a power supply issue, so I replaced it with an older PSU from my previous build and tried booting again. The new PSU was a Seasonic S12ii 520W. When I powered it up, the GPU remained installed, but I avoided connecting the 6-pin connector thinking the card might be too large for the old unit. To my shock, when I pressed the power button, the card caught fire and I quickly turned it off. My concern is what caused the card to overheat and whether this affected other parts. Would a full system replacement be necessary? The card is a GTX 1060 SC from Evga.
The precise specifications of the present device are confirmed. No changes were made to the power sources or wiring connections. Cables may not be compatible with alternate power supplies because of differing pin configurations.
Motherboard: Asus Prime B350 Plus CPU: Ryzen 5 2600 PSU: Cooler Master V650 RAM: 2X Gskill Ripjaws DDR4-2400 8GB GPU: Evga GTX 1060 SSD: Crucial 500GB HDD: WD Blue 2TB The power source I chose was non-modular.
The remaining parts of your PC should be okay. The graphics card appears to be faulty, which probably explains why the system started up but didn’t load properly. If your CPU includes built-in graphics, you might want to test it to determine if booting is possible. (Note: Without the graphics card installed, this won’t work.) The Seasonic S12ii isn’t designed for modular upgrades.
The Seasonic s12ii 520w is a non-modular PSU, which shouldn't cause problems. It looks like the card was already being replaced if any issues arose without extra PCIe power. The LED indicators you mentioned were likely POST lights. Did you receive any beep codes from the board? I bet you were probably encountering VGA errors in this situation.
the board lights were simply the internal RGB indicators, not the status lights. there were no beep codes—just a click when I pressed the power button.
Prior to replacing power sources, the system would shut down instantly upon attempting a boot. Or it might remain powered with visible indicators active but no screen until you manually turned it off. If it cut out right away and you had to reset the power supply before restarting, it likely had an existing fault. The short circuit protection would have sensed the issue and halted operation. Once you changed the PSUs, the protection failed to detect the problem, allowing the short to trigger the fire. The card would have been nonfunctional either way but could clarify the cause after switching supplies.