VoltageGPU hardware check: real runs of 16 October 2026
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hwcheck.sh (MIT, https://github.com/VoltageGPU/hwcheck) compares a machine with its
listing: GPU model, GPU count, VRAM, and a CUDA matmul on every GPU. It is read-only and
sends nothing anywhere.

Rented standard machines, one per model, each checked over SSH right after launch:

  rtx-4090.txt    1x RTX 4090    RESULT: MATCHES THE LISTING (exit 0)
  rtx-5090.txt    1x RTX 5090    RESULT: MATCHES THE LISTING (exit 0)
  h200.txt        1x H200        RESULT: MATCHES THE LISTING (exit 0)
  b300.txt        1x B300        RESULT: MATCHES THE LISTING (exit 0)

Both outcomes on a local workstation with an RTX 3060 Ti:

  rtx3060ti-match.txt      listed as what it is          MATCHES THE LISTING (exit 0)
  rtx3060ti-mismatch.txt   listed as an RTX 4090, 24 GB   DOES NOT MATCH THE LISTING (exit 2)

Run it yourself on any machine:

  curl -fsSL https://voltagegpu.com/hwcheck.sh | bash -s -- --gpu "<model>" --gpus <n>

Memory is printed as the driver reports it, which can differ from the round figure on a
spec sheet.