> This page is for Health Validation.

> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://docs.nvidia.com/health-validation/llms.txt.
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# Check Catalog

Every check this build registers, grouped by hardware domain. Each page lists a check's ID, the signals it reads, its thresholds, and the rules that decide its severity.

| Domain | Checks | Covers |
|---|---|---|
| [GPU](/health-validation/reference/checks/gpu) | 5 | GPU covers GPU device health: driver-reported events (XID), thermal state, driver status, power, and clock behavior. |
| [NVLink](/health-validation/reference/checks/nvlink) | 6 | NVLink covers NVLink interconnect health: replay counters, link errors, and fabric state. |
| [InfiniBand](/health-validation/reference/checks/infiniband) | 1 | InfiniBand covers InfiniBand network health: port state, error rates, and link integrity. |
| [Node](/health-validation/reference/checks/node) | 1 | Node covers host-wide GPU-system signals that are not bound to any single device — GPU count, driver version, and similar inventory checks. |
| [Xid](/health-validation/reference/checks/xid) | 47 | Xid covers NVRM Xid fault events logged by the NVIDIA driver to the kernel ring buffer. Xid measurements are collected separately from GPU telemetry and route only to Xid checks. |
| [CPU](/health-validation/reference/checks/cpu) | 2 | CPU covers host processor inventory and availability signals. |