Download: Mats Rar

You must create a bootable USB using a tool like Rufus or Etcher and a MATS/MODS disk image (.img).

(Memory Automated Test System) is a powerful, leaked internal diagnostic tool from NVIDIA used to identify faulty VRAM chips on graphics cards. It is often bundled with MODS (Modular Diagnostic Software), which performs broader GPU health checks. Core Functionality Download MATS rar

Most versions are hosted on community repair forums like Repair.Wiki or specialized hardware subreddits like r/GPURepair . You must create a bootable USB using a

The system must be booted in Legacy/CSM mode , as the tool often fails to run in UEFI mode. Command Execution: To run a basic memory test of 20MB: ./mats -e 20 . Core Functionality Most versions are hosted on community

MATS specifically targets the Video RAM (VRAM) of NVIDIA GPUs. When a graphics card shows artifacts, crashes under load, or fails to output a signal, MATS can pinpoint exactly which physical memory chip is failing.

Common versions found online include 367.38.1 (for older cards like Pascal) and 400.184 or newer (for RTX/Turing and Ampere cards).

It reports errors by channel (e.g., A0, B1), allowing technicians to know which chip to de-solder and replace.