To execute proper , your bench must include:
For detailed pinouts and component values, you can find official schematic downloads on platforms such as: Elektrotanya 17ips72 schematic work
Finally, check PLT_RST# (Platform Reset) at PCH pin J12 (or the BIOS chip pin 6). This is the final master reset. 0V means the PCH never received all power-good signals. Use the schematic to trace back SYS_PWROK and PCH_PWROK . Mastering the 17IPS72 Schematic Work: A Comprehensive Guide
: The 8-pin PWM/PFC controller chips may fail; check if the supply voltage (VCC) is reaching the IC correctly. Short Circuits Use the schematic to trace back SYS_PWROK and PCH_PWROK
Often caused by a blown main fuse or a shorted MOSFET in the Power Factor Correction (PFC) stage. Blinking Standby Light: