A software-based mod is turning Nvidia's old crypto-mining hardware back into something more useful for memory-hungry workloads. Tom's Hardware reports that CMP Unlocker can restore previously disabled video memory on Nvidia's CMP 170HX, a cryptocurrency mining graphics card built on the company's GA100 Ampere silicon. The reported gains are material. According to Tom's Hardware, the tool can take some CMP 170HX cards from 8GB to 64GB of memory, while another path moves 10GB models to 40GB. The report also says the 8GB and 10GB versions could potentially expose full capacities of 64GB and 80GB respectively, but it adds an important qualification: only 40GB is confirmed as working from user feedback in the cited discussion, and real-world stability varies by card. The reason this is possible is architectural. Tom's Hardware says the CMP 170HX uses Nvidia's GA100, the same 7nm die family behind the A100 accelerator. Unlike GPUs that rely on separate soldered memory chips, GA100 has on-package high-bandwidth memory, so the physical memory configuration can include inactive stacks that were not exposed to the end user. Nvidia sold the CMP 170HX as a mining-focused part in 8GB and 10GB variants. Tom's Hardware reports that the company disabled additional memory through firmware and also limited other capabilities, including compute performance and PCI Express interface speed. In effect, the card shipped with more potential silicon and memory capacity than the official product configuration made available. The unlock is not presented as a guaranteed upgrade. Tom's Hardware cautions that there is no simple way for a buyer to know whether the inactive memory was disabled for product segmentation or because that portion of the chip was defective. That distinction matters: memory that exists physically may not be stable under load, and a card that unlocks successfully may not behave like an enterprise accelerator. The technical path traces back to security research. Tom's Hardware cites Jon Pry's paper, “A Canary in the Crypto Mine: Defeating Stack Protection in a GPU Secure Coprocessor,” as the blueprint for bypassing Nvidia's Falcon security microprocessor, which tools such as CMP Unlocker are based on. The report says the exploit is entirely software-based and does not require soldering or other physical modifications to the card. The mod may go beyond memory capacity. Tom's Hardware says it can also restore some processing capability to the CMP 170HX's Streaming Multiprocessors and allow the card to operate at PCIe 2.0 x4. Those details matter because memory alone does not define usefulness for AI or compute workloads; bus bandwidth and available compute resources also shape what the card can practically run. For now, this is a builder and modder story rather than a clean enterprise procurement story. A low-cost CMP 170HX with unlocked high-bandwidth memory may be attractive in a market where useful AI hardware remains expensive, but the evidence in this cluster is a single reputable report and the outcome depends on chip-by-chip variability. Who benefits: Hardware modders and cost-sensitive AI builders benefit most if they can source CMP 170HX cards cheaply and validate stable unlocked configurations. Sellers of used mining cards could also see renewed interest if the unlock proves repeatable. Who's exposed: Buyers are exposed to card-by-card variance: Tom's Hardware says there is no way to know in advance whether disabled memory was segmented off or physically faulty. Nvidia's historical product segmentation on CMP hardware is also being tested by a software-only bypass.