Voltage Glitching Unlocks CMP Mining Card Into 80GB A100

1 reports archived1 independent sourcesupdated 11/11/2026, 18:48:40

Synthesis & Latest Updates

1 Sources Cross-Validated

A researcher found a voltage fault-injection vulnerability on the GA100 die that allows arbitrary fuse blowing, converting a CMP 170HX 8GB mining card into an effective A100-80G. The unlocked cards expose all functional SMs (~120-126 vs. the yield-safe 108 in retail A100) and run about 1.2x faster than a retail A100, with NVLink, PCIe Gen4, NVJPG, NVDEC and MIG also unlockable.

LATEST/A researcher found a voltage fault-injection vulnerability on the GA100 die that allows arbitrary fuse blowing, converting a CMP 170HX 8GB mining card into an effective A100-80G. The unlocked cards expose all functional SMs (~120-126 vs. the yield-safe 108 in retail A100) and run about 1.2x faster than a retail A100, with NVLink, PCIe Gen4, NVJPG, NVDEC and MIG also unlockable.

Hourly heat curve

5 fully observed hours

Now

14.2

Peak

15.521:00

24h change

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The line compares only sources observed throughout; gap hours are interpolated to keep the trend continuous.

Coverage timeline

Total 1 reports · Latest first

Hacker News AIT2Nov 11, 18:48·78 pts
Voltage Glitching Unlocks CMP Mining Card Into 80GB A100
- A voltage fault-injection flaw on GA100 allows arbitrary fuse blowing to bypass factory limits
- Unlocked cards expose ~120-126 SMs and run about 1.2x faster than retail A100
- NVLink, PCIe Gen4, NVJPG, NVDEC and MIG can be unlocked, though some remain untested
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