Hys3c210cs Power Supply Patched Jun 2026

The original thermistor (NTC) circuit triggered the fan only at 50°C, but hysteresis was poor, causing the fan to cycle on/off every 30 seconds. The patched revision replaces the fixed resistor in the fan driver circuit (R47 – originally 10kΩ) with a , effectively raising the turn-on threshold to 60°C and widening the hysteresis window.

Identifying and adjusting the "sense wire" (typically the brown or orange wire in ATX-style layouts) to ensure the power supply accurately monitors and maintains the correct 3.3V or 5V rail voltage. hys3c210cs power supply patched

Would you like a schematic snippet showing exactly which resistor to change, or a load test graph for the patched unit? The original thermistor (NTC) circuit triggered the fan