Equipment Sector Directory

AI Datacenter & High-Performance Compute Troubleshooting

Diagnostic telemetry, technical fault codes, and step-by-step repair guides for AI Datacenter & High-Performance Compute.

0 Supported Manufacturers • 1 Documented Error Codes

Manufacturers & Brands

OEM hardware vendors indexed under AI Datacenter & High-Performance Compute

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Indexed Fault Guides in AI Datacenter & High-Performance Compute

Machine-verified error code diagnostic walkthroughs

1 Guides

NVIDIA • CODE XID 79 HGX H200 SXM5 8-GPU Subsystem Critical

GPU PCIe Fatal Dropped Bus

An unrecoverable PCIe fatal error occurred on the SXM5 interconnect fabric or upstream PCIe Gen5 switch/retimer link, triggering an XID 79 assertion where the GPU dropped entirely off the PCIe bus during heavy NCCL ring all-reduce communication.

⏱ 45-90 Mins View Guide →