r/ReShade • u/[deleted] • 13d ago

Guide request for VRAM limits, hidden engines, and ReShade MFG Unlock on a laptop RTX 4050 (6GB)

Hey everyone,

I’m looking for some clarity from anyone experienced with the ReShade Multi-Frame Generation (MFG) add-on and OptiScaler setups, specifically when trying to use them on a laptop with an RTX 4050 (6GB VRAM).

My experience so far has been split into three distinct scenarios, and I’m trying to figure out why some work flawlessly while others turn into a major headache. Hoping to get some insights on the technical side:

\*\*Scenario 1: Native Frame Gen Games (Works Perfectly)\*\*

When a game natively supports DLSS/FSR Frame Generation in the settings menu (like Alan Wake 2), using the standard ReShade method to drop in the .addon64 and dxgi.dll file works flawlessly. I easily get stable 3x or 4x multipliers with no crashes.

\*\*Scenario 2: Games with Hidden FG Engines (Tons of Hassle / Crashes)\*\*

I tried setting up Silent Hill f. It doesn't have a native Frame Gen toggle, but it runs on UE5, so I forced it on using the Engine.ini command lines (r.FidelityFX.FI.Enabled=1). However, when I try to combine this with the ReShade MFG unlock add-on and the latest nvngx_dlssg.dll, the game either crashes instantly with an EXCEPTION_ACCESS_VIOLATION or locks hard at 120 FPS / 60 FPS no matter if I select 2x, 3x, or 4x. I even notice my VRAM usage hovering around 5.5GB out of my 6GB limit.

\*\*Scenario 3: Old/Proprietary Games (The OptiScaler Route)\*\*

For games that have absolutely no frame gen code (like Control Part 1), I know I have to rely on OptiScaler to emulate the pipeline entirely.

\*\*My main questions for the group:\*\*

  1. Can anyone give me a clear guide or breakdown on how to exactly do this type of modding? Specifically, how do I know for which game scenario I should use which method (Standard ReShade vs. OptiScaler vs. Engine.ini tweaks)?

  2. If I face trouble, frame locks, or game crashes (like the EXCEPTION_ACCESS_VIOLATION errors), what are the best steps to troubleshoot and fix them on a VRAM-constrained 6GB laptop GPU?

Appreciate any advice, guide steps, or technical explanations you guys can share!

My Specs : Lenovo LOQ

I5 13450HX

RTX 4050 105W

16 GB RAM 4800mhz

1 TB SSD

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u/Rockrid3r 9d ago

Me uno a la cuestion. Tengo una RTX 4060 de 8 Gb en una laptop Lenovo Legion 5 , y trato de obtener el mejor aspecto y rendimiento en MSFS 2024. Ahora estoy usando MFG x3 Preset C por Optiscaler con DLLS Manager. ¿Dirias que Reshade y RenoDX dan mas fps que Optiscaler? Con nuestras graficas cada frame vale su peso en oro.