Force Computers SYS68K/CPU‑40 is a single‑board computer based on the Motorola 68040 microprocessor with a 4 MHz to 33 MHz clock, integrated SRAM and optional modular I/O (EAGLE) for VMEbus, serial, SCSI, Ethernet, or floppy interfaces. Common failure modes include power‑supply ripple causing CPU resets, VME bus contention leading to intermittent I/O errors, overheating of the 68040 core due to inadequate heat sinking, and SRAM corruption from bad memory cells or ESD damage. For initial troubleshooting, verify that the board’s regulated 12 V/5 V rails are within spec with an oscilloscope, inspect the VMEbus connectors for bent pins or debris, and run a basic POST diagnostic routine (check LED status codes, CPU boot message, and memory test if available).[oss-gpt-20b]