Nvidia CMP 170HX hack turns $250 mining GPU into $1,000 AI card
A graphics card once destined for the scrap heap of the crypto mining bust is suddenly one of the cheapest ways to get serious VRAM for AI work โ and it took nothing more than a piece of software to make that happen. The Nvidia CMP 170HX hack lets owners of this discontinued mining GPU unlock memory and compute power that Nvidia deliberately switched off at the factory, turning a $250 castoff into something researchers and hobbyists are suddenly fighting over on eBay.
Key takeaways
- The Nvidia CMP 170HX runs on GA100 (Ampere) silicon, the same 7nm die found in Nvidiaโs A100 accelerator, and includes six HBM2e memory stacks.
- Nvidia sold the card in 8GB and 10GB configurations, disabling extra memory stacks and throttling performance through firmware for product segmentation.
- A software tool called CMP Unlocker can reportedly unlock up to 64GB or 80GB of VRAM, though only 40GB has been confirmed stable in real-world testing.
- The exploit also restores some disabled Streaming Multiprocessor cores and upgrades PCIe speed from 1.0 x4 to 2.0 x4, all without any physical modification.
- Prices for the card jumped from around $250 to over $1,000 once word of the unlock spread, though it still canโt match newer architectures like Hopper or Blackwell.
Nvidia CMP 170HX Hardware Overview
The CMP 170HX is essentially a crippled version of a much more powerful chip, and that gap between what it could do and what it was allowed to do is exactly what makes this exploit possible. Nvidia built the card as the flagship of its Crypto Mining Processor lineup during the height of the mining boom, and it shares silicon with hardware that normally costs thousands more.
โฆ Continue reading the full article at the original source below.
