High GPU hotspot delta (>30°C difference between core and hotspot)
Thermal paste pump-out or uneven mounting bracket pressure causes the hotspot (junction) to hit 105°C+ while the core reports a deceptive 65°C.
Internal desktop parts run on harmless 12V DC voltage and cannot shock you. Simply unplug the wall power cable first, then touch the unpainted metal case frame to ground static electricity.
Common Symptoms & Tells
- fans suddenly ramp to 100% (jet engine sound) during gaming
- HWiNFO shows Temperature at 68°C but Hot Spot at 105-110°C
- Graphics card downclocks heavily and framerates stutter
Interactive Fix Checklist
0 of 5 steps completedSafety power-off and discharge
Shut down the PC, turn off the power supply rocker switch (O), and unplug the AC power cord from the wall outlet. Press the front power button once while unplugged to discharge residual capacitor energy before touching any internal components.
Check GPU core-to-hotspot temperature delta
Open HWiNFO64. Under sensors, subtract Core from Hot Spot. A delta above 20-25°C indicates paste degradation or uneven heatsink contact.
Repaste GPU with viscous paste or PTM7950 phase-change pad
Direct-die silicon causes standard paste to pump out under thermal cycling. Use high-viscosity paste (Thermalright TFX, Kingpin KPx) or Honeywell PTM7950 phase-change pad.
Tighten GPU retention bracket spring screws
Tighten the 4 spring-loaded cross-bracket screws behind the core in an X-pattern to ensure firm, balanced mounting pressure across the die.
Ensure thermal putty or pads on VRAM are correct thickness
If thermal pads on VRAM are even 0.5mm too thick, they will prevent the copper base from contacting the die.
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