NVIDIA Reflex / Low Latency Mode Crash
What is this error?
NVIDIA Reflex or Ultra Low Latency mode causing crashes, black screens, or performance issues in competitive games.
Common causes
- Reflex implementation bug in specific game
- driver conflict with Reflex
- Reflex + V-Sync conflict
- frame limiter conflict
- outdated game or driver
How to fix it
- Disable NVIDIA Reflex in game settings
- disable Ultra Low Latency in NVIDIA Control Panel
- update game and driver
Too many steps? Crashless can diagnose this automatically — checks your drivers, temps, VRAM, and 400+ known error patterns.
Get free AI diagnosis Detailed analysis
NVIDIA Reflex Low Latency mode can cause crashes or black screens in some games, especially when combined with other frame timing features. Games with known Reflex issues include Valorant, Fortnite, Overwatch 2, and Apex Legends.
Symptoms: random black screens, game freezing for 1-2 seconds, crash to desktop during fast-paced moments.
How to fix it:
- In the game's settings, set NVIDIA Reflex to 'Off' or 'On' (not 'On + Boost' — Boost is more aggressive and crash-prone)
- In NVIDIA Control Panel > Manage 3D Settings, set 'Low Latency Mode' to 'Off' for the affected game
- Disable V-Sync in both the game AND NVIDIA Control Panel — Reflex + V-Sync can conflict
- Remove any third-party frame limiters (RTSS, in-game caps) — use only one frame limiting method
- Update both the game and GPU driver — Reflex bugs are frequently patched
- If the game supports it, use the in-game frame limiter instead of Reflex for stability
When to seek help
If this error keeps happening after trying the fixes above, it may point to a deeper hardware or system issue. Consider professional help if:
- The crash occurs across multiple games or applications
- You see the same error after a clean Windows install
- Your PC is less than a year old (could be a warranty issue)
- You smell burning or hear unusual sounds from your PC
Or let Crashless do the deep analysis for you -- our AI checks drivers, temps, event logs, and 400+ known patterns automatically.
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