I’m posting this as a reproducible system stability issue involving the Corsair Xeneon Edge.

System:

• Ryzen 7 5700X3D
• MSI B550 motherboard
• 32GB DDR4 3600MHz
• Radeon RX 9070 GPU
• Windows 11 fully updated
• Xeneon Edge connected via USB-C + DisplayPort

Issue:

With the Xeneon Edge connected, I experienced:

• Random black screen flashes
• Application freezes (notably in gaming workloads)
• Full system hangs requiring hard reset
• Occasional complete system lock-ups (entire OS freeze)

These were not isolated application crashes — they escalated to system-level instability.

Stress testing (OCCT):

To rule out core hardware failure:

• CPU 30-minute stress test → stable
• GPU 30-minute stress test → stable
• Memory 30-minute stress test → stable

No errors or instability detected under isolated component testing.

Observed behaviour during instability:

During affected sessions:

• OCCT Cache Hierarchy errors occurred during system instability events
• QMLRenderer errors / rendering pipeline failures were observed
• System freezes affected the entire OS, not individual applications

Isolation process:

To identify the trigger, I progressively removed variables:

1. Clean GPU driver reinstall
2. Disabled other background RGB / monitoring software
3. Removed vendor control software required for peripheral operation
4. Disconnected Xeneon Edge

Result:

After removing the Xeneon Edge:

• System stability fully returned
• No further freezes, flashes, or lock-ups
• No instability under gaming or stress workloads

Conclusion:

The issue appears to be specifically linked to the Xeneon Edge when fully integrated into the system via its required software stack.

This suggests a device + system interaction issue under load conditions, rather than CPU/GPU/RAM failure.

Request:

Looking for confirmation from others experiencing:

• instability with Xeneon Edge
• USB-C / DisplayPort hybrid device issues
• Cache Hierarchy or rendering-related system errors under load

Happy to provide additional logs if needed.