YES – Using a USB-C to Displayport cable
You get Freesync when Nvidia Optimus is enabled, GSync when Nvidia Optimus is disabled
YES – Lenovo Legion Toolkit on Windows or in the BIOS.
Yes. But actually no. The bandwidth is shared between internal display and the external port, which in practice means you won’t be able to make full use of HDMI 2.1 specs.
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The display is only HDR400 and implementation in Windows 10 is bad, so not recommended as a replacement to TrueHDR TV/Monitor. Sometimes known as HDRn't.
That means you are missing ICC profiles. See guide here
Download X-rite application here:
https://pcsupport.lenovo.com/cz/en/products/laptops-and-netbooks/legion-series/legion-7-15imh05/downloads/ds543953
And profiles here
https://ulozto.cz/tamhle/S7HCuKDD5KHW/name/Nahrano-27-4-2021-v-8-32-14#!ZJZ0LmR2AzD3MQV5BJWxZGSxAwp4Z1qVFmIMAaAEEQSYMzH4AN==
Copy content of that .rar archive into “C:\Windows\System32\spool\drivers\color” and use X-Rite to apply them.
Most likely not, but we aren't aware of anyone testing one of those 8TB SSDs.
Both M.2 slots are 2280 and PCIe 3.0
YES – Two DDR4 SODIMMS. Both should be populated from the factory (either 2×8 or 2x16GB sticks), running at 3200MHz.
Yes. Only when sending in for repair, make sure to remove the custom drives and rams and send in with the stock ones. only then would the repair be accepted. So do not sell the SSD and RAM your laptop came with, just in case.
YES – base models have a white baclklight with two levels of brightness, RGB backlight is optional.
Lenovo Legion Toolkit supports basic keyboard backlight controls.
Coil whine is a known issue. Some units have more of it then others, some people are more sensitive to it than others.
Sadly it isn't RMAable and nobody can do anything about it.
Lenovo added “Advanced Thermal Optimization” in 36WW BIOS that forces minimal fan speed in order to hide coil whine. You can disable it in the BIOS to allow the fans to switch off.
NO – At least not officially. Lenovo only provides three basic power profiles, toggleable either via Lenovo Vantage or by keyboard shortcut FN+Q.
Legion Fan control achieves something better to allow bit more better fan control than stock mode, to know more visit Legion Fan Control
You can only overclock the GPU, that can be enabled in bios and further controlled using bios “Advanced overclock” feature.
Alternatively MSI afterburner can be used to achieve granular overclocking with the curve using 3070 Tweak Guide
YES – Keyboard shortcut is FN+L
iFixit has a good tutorial.
You will need a toolkit and patience.
YES
It’s a fancy name for a very simple thing: minimum fan speed. It was mainly introduced to counter the coil whine which is mainly present when fans are off.
Here is what the options mean: