Proper cooling prevents thermal throttling, extends component life, and avoids unplanned downtime. This guide covers data center cooling fundamentals and server-level best practices.
Temperature Guidelines
| Metric | Recommended | Maximum |
|---|---|---|
| Intake Air | 18-27C (64-80F) | 35C (95F) |
| Humidity | 40-60% RH | 80% RH |
| CPU | Under 75C | 100C (throttles) |
When to Replace Fans
- Fans running at 100% constantly (worn bearings)
- Temperature warnings in iDRAC/iLO/XCC despite clean airflow
- Unusual noise (grinding, clicking)
- Preventive: every 3-5 years for 24/7 operation