30-SECOND SUMMARY
What to take away
- Start with VRAM capacity and runtime support.
- Include PSU, case, cooling, motherboard, RAM, and storage in total cost.
- Run a sustained load and the real model before purchase when possible.
Verify used hardware
A real load matters more than a listing.
- 01IDENTIFY
Model and VRAM
- 02FIT
Power, space, cooling
- 03STRESS
Heat and errors
- 04MODEL
Run the intended GGUF
Work backward from the model
Define model size, context, concurrency, and memory headroom. Training or image generation may require different software support.
Cross-check identity
Request the exact model, VRAM, serial information, ports, and power connectors. Compare compute capability and runtime support with official sources.
Calculate system cost
Check physical clearance, PSU rating and connectors, slots, CPU, RAM, storage, cooling, and noise. Avoid unsafe adapter chains.
Test under load
Inspect artifacts, fan noise, temperature, errors, and throttling, then run the intended GGUF model for 20–30 minutes. Document warranty and return terms.
- Serial and seals
- VRAM identity and errors
- Fans, temperature, noise
- No shutdown under load
- Real model loading and speed
- Warranty and return terms
Frequently asked questions
Should every mining GPU be avoided?
No. Verify temperature, errors, fans, and sustained stability instead of relying on history alone.
Is VRAM all that matters?
No. Software support, bandwidth, power, cooling, and system RAM matter too.
What should I request in person?
Exact identification, a load test, the intended model run, and purchase evidence.
Primary sources
Check the original documentation for version-specific details.
Ollama hardware support