Assistance Maximizing Performance on Lenovo Legion 9i Gen 9 (i9 + RTX 4090)

[bold vector]

I recently purchased a Lenovo Legion 9i Gen 9 with an Intel Core i9-14th Gen and RTX 4090, in open-box condition, for around 2000€. It’s an absolute beast on paper, but I’m running into performance issues that I don’t know how to fix.

The Problem:

When I run Cinebench R23, I’m getting only 16,000–17,000 points in a 10-minute multi-core run, which seems very low for this kind of CPU (shouldn't it be 24k+?).

Also, my Lenovo Vantage software is broken. It doesn’t open at all, which means I can’t enable Extreme Performance mode, change thermal/fan profiles, or switch GPU modes.

What I’ve Tried:

Reinstalled Vantage multiple times (including Lenovo System Interface), but no luck.

Tried the Ultimate Performance power plan via CMD – small boost, but nothing major.

Thought about using Lenovo Legion Toolkit from GitHub or even MSI Afterburner for GPU tweaks — but I’m not 100% sure how to do it safely.

Tried looking for guides on YouTube and Reddit, but most assume Vantage is working or don’t explain step-by-step.

Also, I can't figure out how to benchmark my GPU properly (Cinebench R23 doesn’t test GPU, I just found that out 😅), and I had trouble installing 3DMark and FurMark — maybe I used the wrong links or messed up the steps

My Weird Solution (That Actually Helped a Bit):

I have a square house fan that blows air 5+ feet. I put my laptop on top of it (carefully, no vents blocked), and it 100% reduced temps. Probably works better 99% coolers 😂.

🆘 What I Need Help With:

How can I fix or replace Lenovo Vantage properly?

Is Legion Toolkit safe, and how should I set it up to unlock performance?

Can anyone guide me on overclocking / undervolting / fan curves for this machine?

What’s the best way to test the GPU performance (and how to install these tools properly)?

Any other hidden settings in BIOS or Windows I should check for Performance?

[south sequoia]

Can u try lenovo diagnostic evolution and run a full test? You can toggle performance profiles if you press fn+q , i dont know abou lenovo vantage issue tho, did you download it on Microsoft store?

[plain pawn]

UV/OC guide is pinned in #tweakers
LLT is safe. Read it's README on how to set it up
3dmark timespy/steel nomad is most common benchmarking tools for gpu
Don't touch "hidden bios settings" unless you know what you are doing personally. You'll just end up bricking your laptop

Please use #questions or #tweakers for general questions

As for cinebench. Make a log and upload it

[tame hawk]

sloj

__How to make hardware sensors log__

This guide explains how to make a file containing data from laptop sensors overtime using HWiNFO64 so that you or other people can review it.

Result 1 of 1

[bold vector]

Thanks but I downloaded Lenovo Vantage from microsoft officially but it does not load, making it difficult for me. Could you send me the link to download the Lenovo toolkit, as well as a link for 3DMark Timespy or Furmark? I have searched Steam and Google for quite a long time, and all the links do nothing for me. Regarding the BIOS settings, I'll only modify them if I can't get any results from other software. Also, is MSI Afterburner helpful for me ?? THANK YOU for helping

[bold vector]

Yea, I have hwinfo64, I'll send u results after 3-4 days, if all works well, though this software and hardware is confusing

[plain pawn]

#legion-toolkit is where you can get the LLT. Read it's README on it's GitHub page to understand nuances of it

[bold vector]

Yes I did download it from microsoft, It worked the first time but I could not change any settings or turn performance up as everything was greyed out and not clickable. I then ran cmd administrator prompts and redownloaded vantage and reboot my system which completley broke vantage I guess. Idk i'll try one more time

[plain pawn]

3dmark can be downloaded from Steam

It has a free demo there

Time spy and steel nomad are benchmarks contained inside 3dmark app

[bold vector]

Yes, I can't find it, I promise I can't see it anywhere

[plain pawn]

https://www.google.com/url?sa=t&source=web&rct=j&opi=89978449&url=https://store.steampowered.com/app/223850/3DMark/&ved=2ahUKEwiToKzE7IuOAxVIGBAIHc5EFYAQFnoECCYQAQ&usg=AOvVaw2yaSjdDbcE4NiC08sfZ523

[bold vector]

Ok, thanks I'll check it, so toolkit would work like an alternative to vantage and do everything vantage does for me, Right ?

[plain pawn]

Yes

[bold vector]

thank u so much, ur such a blessing man

[bold vector]

also should I download msi afterburner or toolkit is enough ?. Right now I'll try diagnostic and redownload vantage and see if it works

[plain pawn]

AB is optional

It's used for gpu overclocking and on screen monitoring