Damaged LOGIC400-ATX Power Supply

Computer specifications: Motherboard: Asus M4N68T-M LE V2 CPU: QuadCore AMD Athlon II X4 640, 3015 MHz RAM: 4096 MB Graphics card: AMD Radeon HD 6670 (1 GB) Hard drives: TOSHIBA DT01ACA100 – 1000.2 GB SAMSUNG SV6003H – 60.0 GB SAMSUNG SV4012H – 33.8 GB Optical drive: ATAPI iHAS124 B SCSI CdRom Device Power supply: LOGIC400-ATX Operating systems: Windows XP Professional SP3 32-bit (PL) Windows 7 Ultimate SP1 64-bit (PL) Windows 10 21H2 Pro 64-bit (PL) After a few minutes or sometimes a few hours, the computer shuts off completely as if the power cord was unplugged from the outlet. It does not matter whether an operating system is running or if the system is in the BIOS setup — the shutdown behavior is the same. About six months ago, the computer began shutting down more and more frequently, until eventually it would power off just a few seconds after startup. At that time, I was using a MODECOM FEEL 3 400W ATX power supply taken from a broken computer found in the trash... Read more