GameMemDiag

Traces "out of memory" crashes in PC games. It records RAM, page file and VRAM usage while you play, then packages everything needed to diagnose the crash into one zip.

It only reads information: nothing is installed or changed. It needs only the Windows PowerShell 5.1 that ships with Windows 10/11.

Usage

Double-click Run-GameMemDiag.bat:

Option	When	What it does
1 Monitor	Before launching the game	Samples every 5 s until Q is pressed, then builds the report
2 Collect	After a crash, freeze/reboot, or if the monitor window was closed	Builds the report from what's already on disk, including any monitor sessions from the last 7 days

The report is saved as GameMemDiag_<PC>_<date>.zip on the Desktop. README.txt holds the same steps written for the person running it.

Command line:

powershell -ExecutionPolicy Bypass -File GameMemDiag.ps1 -Mode Monitor [-IntervalSeconds 5] [-DurationSeconds 0]
powershell -ExecutionPolicy Bypass -File GameMemDiag.ps1 -Mode Collect [-Days 7] [-SkipDxDiag] [-OutDir <path>] [-NoOpen]

What's in the report

File	Contents
summary.txt	Ranked findings: VRAM full or spilling into system RAM, commit near its limit, low-memory events, GPU driver resets, out-of-memory lines in game logs, page file problems
report.html	Charts of VRAM, commit and free RAM for each session, with dashed markers at the logged events
sessions/<time>/samples.csv	One row per sample: commit/limit, free RAM, page file %, VRAM dedicated/shared, plus nvidia-smi load/temp/clock/power on NVIDIA cards and the top RAM and VRAM process
sessions/<time>/processes.csv	The top 8 RAM users and top 5 VRAM users at every sample
sessions/<time>/markers.csv	VRAM FULL, COMMIT HIGH, a heavy process starting, and a heavy process exiting (the crash moment)
system.txt	Windows build, CPU/board/BIOS, memory modules with rated vs running speed, GPU and driver, page file setup and peak use, drives, power plan, top processes, startup programs
events.txt	Resource-Exhaustion (low memory), nvlddmkm/amdkmdag, TDR 4101, Kernel-Power 41, 6008, WHEA, bugchecks, app crashes/hangs, WER
game-logs/	Unreal Engine Saved/Logs and Saved/Crashes (including minidumps) from %LOCALAPPDATA%, Documents\My Games, Saved Games and Microsoft Store/Game Pass packages
wer/	Windows Error Report files and a list of crash dumps
dxdiag.txt	A full DxDiag

The report includes the PC name and the names and paths of running programs. It does not include passwords, browsing data or personal files.

Notes

• VRAM figures come from the Windows GPU Adapter Memory / GPU Process Memory performance counters, so they work on any vendor. nvidia-smi adds extra columns when it's present.
• Every CSV number uses invariant culture, so reports from comma-decimal locales parse the same way.
• The zip is built one entry at a time with / separators, because PS 5.1's Compress-Archive writes backslash paths.