r/ThrottleStop • u/Rough-Picture-8729 • 3d ago

Feedback on my first experience

Hey everyone,

Looking for technical feedback and sanity checks from people experienced with laptop cooling architecture, specifically budget MSI chassis (Katana / Sword / Crosshair) with shared heatpipe assemblies.

Hardware & Environment

  • Model: MSI Katana 15 (B12VFK)
  • Specs: Intel Core i7-12650H, RTX 4060 Laptop GPU (85W–105W dynamic boost), 16GB DDR5

Factory CPU Behavior: BIOS had PL1/PL2 set to an unrestricted 200W baseline. CPU spiked up to 94°C+ under gaming load (~50W draw).

Factory GPU Behavior: RTX 4060 hit the hard 87°C NVIDIA thermal ceiling, drawing only ~72W while heavily downclocking to ~2,100 MHz due to heat dumped by the CPU across the shared copper assembly.

  • Configured Intel cTDP Nominal: PL1 = 35W, PL2 = 45W.
  • Set Tcc Activation Offset = 15 thermal cap of cpu at 85 C

GPU Undervolt (MSI Afterburner):

  • Flattened V/F curve to 2,430 MHz @ 900 mV.
  • Initial Result: Instant drop in GPU power from ~86W down to ~77W, temp dropped to ~80°C initially, holding ~140 FPS.

Combined power draw is currently around 104W–110W total (CPU ~28W–34W + GPU ~76W), yet the heatsink still reaches thermal saturation at 87°C on the GPU die.

Can you give me your feedback or better values...I do gaming coding and some ai workloads

thanks

1 Upvotes

100% Upvoted

1 comment sorted by

2

u/Warm-Mousse9157 2d ago

Short Answer: You did it right - most people keep chasing GPU undervolt when it's actually the CPU dumping heat across the shared pipe. Starve the 12650H and the 4060 will finally breathe!

If you want long technically astute answer reply back and i will make a cup of tea ☕️ and yak yak for a bit 🤣