Here's my testing routine for AMD CPUs:

1. Check basic info and speeds with CPU-Z
2. Run Cinebench R23 for a quick performance test
3. Use AIDA64 for a more comprehensive stability test (1-2 hours)
4. Monitor temperatures with Ryzen Master throughout testing
5. If overclocking, repeat tests after each adjustment

Remember, stability is just as important as raw performance!

For testing AMD CPUs, I highly recommend using Cinebench R23 for overall performance benchmarking. It's great for both single-core and multi-core tests. For stress testing, Prime95 is indeed a solid choice. Also, don't forget about AIDA64 – it's excellent for stability testing and monitoring temperatures.

For AMD-specific features, try using AMD Ryzen Master. It's official software that lets you monitor and even overclock your CPU. It'll help you verify if Precision Boost is working correctly.

As for duration, I usually run stress tests for at least 1-2 hours to ensure stability. For temperature monitoring, keep an eye out for anything consistently above 85°C during heavy loads.

There's actually a few free tools that work great:

• OCCT: Best for stability testing
• CPU-Z: Basic benchmarking + system info
• HWiNFO: Temperature + voltage monitoring

Run OCCT for 2-3 hours minimum. If you get crashes or errors, either your CPU is faulty or your cooling isn't adequate.

Testing an AMD CPU involves several steps to ensure it functions correctly, maintains stability, and performs as expected under load. Here's a comprehensive approach:

1. Physical Inspection and Verification:
   Begin by visually inspecting the CPU for physical damage, bent pins, or thermal paste issues. Ensure the CPU is correctly seated in the motherboard socket and the cooler is properly attached, using an adequate amount of thermal paste for efficient heat transfer.

2. BIOS/UEFI Verification:
   Boot into your system BIOS/UEFI to confirm the CPU model, frequency, voltages, and temperatures are correctly identified. Update your motherboard's BIOS to the latest version from the manufacturer's website, as updates often improve CPU compatibility and stability.

3. Stress Testing and Stability:
   Use dedicated CPU stress testing tools like Prime95, OCCT, or Cinebench. These programs put the CPU under intense computational load, identifying stability issues, overheating problems, or potential defects. Monitor CPU temperatures closely with software such as HWMonitor or Ryzen Master. Ideally, temperatures should remain below 85°C under full load.

4. Performance Benchmarking:
   Benchmark your CPU using software like Cinebench R23, Geekbench, or PassMark. Compare your results against published benchmarks for your CPU model to ensure it's performing within expected parameters.

5. Memory and Integrated Components Testing:
   CPUs often integrate memory controllers. Perform memory tests using software like MemTest86 to identify CPU-related memory errors. Additionally, verify the CPU's integrated graphics (if applicable) using graphics benchmarks or stability tests to ensure they're functioning correctly.

6. Monitoring and Logging:
   Continuously monitor CPU usage, clock speeds, voltages, and temperatures during testing. Watch for anomalies such as sudden temperature spikes, inconsistent clock speeds, or frequent crashes, which may indicate CPU issues or configuration errors.

By methodically performing these tests, you can confidently verify your AMD CPU's health, stability, and performance.