Laptop CPU/GPU overheating again 2 weeks after repasting (Thermal Paste Pump-Out)
Repasted gaming laptop with thermal paste, but temperatures spike to 95C again after a few days.
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
- Fresh thermal paste worked great for 1 week then CPU temps spiked to 95C-100C
- Opening laptop shows bare silicon die in the center with paste pushed to the outer edges
- Direct-die mobile silicon with low mounting pressure suffers from pump-out effect
Interactive Fix Checklist
0 of 4 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.
Replace standard silicone paste with Honeywell PTM7950 Phase Change Material
Laptops lack the heavy metal heat spreader (IHS) of desktop CPUs and have low spring mounting pressure. Traditional thermal paste pumps out due to thermal expansion cycles. Apply Honeywell PTM7950 (0.2mm phase-change thermal pad) cut to exact die dimensions.
Check thermal putty on VRMs and VRAM chips
Do NOT use thick thermal pads on laptop VRMs/VRAM if factory used thermal paste/putty. Thick pads prevent heatsink from making contact with CPU die. Use high-performance thermal putty (e.g. Upsiren U6 Pro or K5 Pro).
Tighten heatsink screws in strict numbered sequence (1 -> 2 -> 3 -> 4)
Laptop heatsinks have small numbers stamped near each screw hole (1 through 6 or 8). Tighten each screw halfway in numerical order, then do a second pass tightening them fully.
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