Developer Tools
gpucheck
Test a used NVIDIA GPU's health in one command
Free, open-source CLI that stress-tests an NVIDIA GPU for 10 minutes and grades it against healthy cards of the same model.
Overview
A look at gpucheck.dev
gpucheck is a free, open-source command-line tool that health-checks NVIDIA GPUs by running a sustained matrix-multiply load for about 10 minutes while sampling temperature, clocks, power, and throttle reasons. It records an idle baseline, then explains problems in plain language including thermal throttling, power capping, memory errors, and below-spec throughput. Results can be uploaded for a public page and letter grade comparing sustained TFLOPS against healthy cards of the same model. For those selling used GPUs, an optional $29 cryptographically signed certificate proves a fresh, untampered, server-graded run.
Feature notes
- 10-minute sustained stress test
- Plain-language problem explanations
- Cryptographically signed certificates with Ed25519
- One-time server-issued challenge binding
- Public verification page for certificates
- Online revocation check
- Delete token for result removal
- Salted hash card identifier protection
Pricing
Pricing model: Freemium
Health check: Free. Signed certificate: $29 USD per certificate.
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FAQ
- What hardware does gpucheck support?
- Linux with NVIDIA GPUs only, for now. gpucheck reads telemetry through NVML, so it needs the NVIDIA driver installed. No Windows, macOS, AMD, or Intel support yet.
- What data does gpucheck upload?
- Uploading is opt-in, and only result.json is sent: telemetry samples, GPU model, driver version, and findings. The card identifier is a salted hash — the raw GPU UUID never leaves your machine. No hostname, user name, or other system information.
- Does a gpucheck certificate guarantee the GPU is good?
- No. It proves a fresh, untampered, server-graded run happened on a card with that identifier. It cannot stop someone who controls the machine from fabricating telemetry, or from re-running until they like the result. It raises the cost of lying; it is not proof.
- Can I delete an uploaded result?
- Yes. Every upload returns a delete token; use it to remove the result page at any time. There are no accounts, so the token is the only way to prove the result is yours.
- Does gpucheck work on MIG instances?
- Partially. On MIG-partitioned GPUs gpucheck can take measurements, but it won't grade them — a MIG slice isn't comparable to the healthy-card reference set for the full model.
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