ASUS released an update for its GPU Tweak III utility that adds a critical safety mechanism for high-end graphics cards. This update provides a safety mechanism to protect hardware from potential damage caused by power delivery anomalies on modern connectors. Users with compatible ROG hardware now have a software-level safeguard against electrical faults.
New software feature triggers system shutdown when power connector current exceeds safe limits
The update is version 2.1.8.0 of the GPU Tweak III software. It specifically targets the 12VHPWR and 12V-2×6 power connectors used by recent GPUs. The feature relies on the Power Detector+ technology built into selected ROG Astral and ROG Matrix graphics cards.
- Software Version: 2.1.8.0
- Feature: Auto-shutdown on high current
- Supported Hardware: ROG Astral and ROG Matrix graphics cards
- Connector Type: 12VHPWR or 12V-2×6
Power Detector+ monitors current across the six power-carrying pins of the connector. It triggers warnings when current drops to 0 A or exceeds 9.2 A. The new auto-shutdown option activates when the system detects persistently high current. Users must manually enable this auto-shutdown feature in the software settings.
The update does not specify the time threshold required for the shutdown to trigger. ASUS left the duration of elevated current undefined in the changelog. We looked at the last GPU Tweak III update while tracking these stability improvements. The feature is available only on the supported ROG hardware models.
ASUS confirmed the new safety logic in the official release notes. The changelog states the auto-shutdown triggers on persistently high current. This update provides a specific protection layer for users of ROG Astral and ROG Matrix cards.
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