Figure 14. Typical Temperature-Fan Speed Relation For Speed-Controlled Fan - AMD Athlon 64 Thermal Design Manual

Preliminary Information
26633 Rev. 3.03 September 2003
AMD Athlon™ 64 and AMD Opteron™ Processors
Thermal Design Guide
Figure 14 shows a typical fan speed curve. The actual fan speed can depend on the heatsink, but
the speed versus temperature ramping should be implemented as shown in the figure.

Figure 14. Typical Temperature-Fan Speed Relation for Speed-Controlled Fan

Chapter 2 AMD Athlon™ 64 and AMD Opteron™ Processors Thermal Requirements 31