Download Nvidia Modular Diagnostic — Software

Assuming you have logged into the NVIDIA Developer Portal:

Most often, NVIDIA supplies these tools to server OEMs who rebrand them. You likely already have access if you manage hardware from:

| Feature | Description | | :--- | :--- | | Modular Architecture | Allows you to run specific diagnostic modules (e.g., memory test, PCIe test, thermal test) instead of a single monolithic test. | | Operating System Agnostic | Runs from a UEFI shell or Linux initrd (initial RAM disk) – no driver or OS installation required. | | Memory Integrity Test | Detects ECC errors, stuck bits, and addressing faults on HBM/GDDR memory. | | PCIe Link Testing | Validates lane speeds, widths, and retraining errors. | | Thermal & Clock Validation | Checks fan curves, thermal throttling, and boost clock stability. | | Firmware Verification | Compares GPU VBIOS and GSP firmware against NVIDIA-released versions. | | Stress/Longevity Mode | Loops selected modules for burn-in or failure analysis. | | Logging & Reporting | Outputs JSON or plain-text logs for automated parsing. | download nvidia modular diagnostic software

NVIDIA Mods output is very precise. Here is a decoder for the most frequent errors:

| Error Code | Meaning | Likely Fix | |------------|-------------------|-------------------------------------------------| | MEM 0x10 | Single-bit ECC error (uncorrected) | Card is failing – RMA if under warranty. | | MEM 0x20 | Multi-bit error – data corruption imminent | Immediate replacement required. | | BUS 0x01 | PCIe link width error (x16 downgraded to x8/x4) | Reseat card, clean PCIe slot, check motherboard. | | FB 0xFF | Framebuffer corruption | VRAM overheating – replace thermal pads. | | THM 0x80 | Hotspot delta >20°C from edge temp | Poor die contact – re-paste GPU. | Assuming you have logged into the NVIDIA Developer

No errors? Your GPU hardware is likely fine. Consider updating drivers, checking game files, or testing system RAM.

If your NVIDIA GPU came inside a Dell Precision, HP Z-series, or Lenovo ThinkStation: NVIDIA Mods output is very precise

Subject: Download, Analysis, and Implementation of NVIDIA Modular Diagnostic Software Date: October 26, 2023 Report Type: Technical Product Analysis & Procurement Guide

For partners and enterprise clients: