Laptop overclocking/system optimizing. 13900HX & 4090

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I have a water cooled Tongfang GM7PX8N laptop with:

I9-13900HX

32 GB (2 x 16) 6400MT/s CL36

RTX 4090

Current best TimeSpy score - 23644

CPU is undervolted

GPU is overclocked

What else can I do to improve my scores? Are there windows optimizations that will push all power to the CPU during the CPU test on the run?

I have no clue about RAM overclocking but suspect the RAM can be pushed to 7000MT/s but unsure which settings to change.

4090 is power limited to 175w and no shunt mod options for this laptop. Are there any other optimizations I'm not aware of? Is undervolting possible and likely to have much effect?

I'm not looking to game, just push my score as hard as possible. Laptop is out of warranty and willing to take some risks.

Anything else about the system that you need to know to offer advice and suggestions?

Thanks in advance.
 
GPU curve could probably be optimized. Could make physical airflow improvements to the cooler?
 
23644 on a laptop is already kind of wild. At that point it’s less “more MHz” and more “stop it from tripping over itself”. I’d look at limits rather than raw clocks. Is the 13900HX actually holding boost in the CPU run, or spiking then sagging?

On the 4090, even at 175W, a tidy undervolt curve can hold higher bins longer if it’s bouncing off voltage. What’s capping first – power, temps, or voltage?
 
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