Datasheet

PID: 30417 Rev. 3.09 - November 2005 AMD Opteron™ Processor Power and Thermal Data Sheet
24AMD Opteron™ Processor
1. CPUID extended function 8000_0001h fields are used by BIOS in uniquely associating a given processor to the P-
states that are valid for that processor. Refer to the BIOS and Kernel Developer’s Guide for AM D Athlon™ 64
and AMD Opteron™ Processors, order# 26094.
2. FIDVID Status Register, M SR C001_0042h.
3. StartVID and MaxVID are programmed during device manufacturing with part-specific values for Rev E and later
processors with 'Variable' indicated by the Operating Voltage OPN character, and can have one or more valid
options. All valid op tions for StartVID, M axVID, and VID_VDD will be specified for the corresponding OPN.
For information on the relationship of StartVID and MaxVID to VID_VDD refer to the BIOS and Kernel
Developer’s Guide for AM D Athlon™ 64 and AM D Opteron™ Processors, order# 26094.
4. The VID_VDD voltage is the VID[4:0] requested VDD supply level. Refer to the appropriate functional data
sheet for details.
5. Thermal Design Power (TDP) is measured under the conditions of Tcase Max and VDD=VID_VDD, and include
all power dissipated on-die from VDD, VDDIO, VLDT, VTT, and VDDA. Contact your Field Application
Engineer for more information on TDP specifications.
6. Imp lementation of this P-state is optional in BIOS.
7. Limited availability.
8. Thermal Design Power (TDP) specifications for dual core processors assume equivalent P-states (Voltage and
frequency) and equivalent Tcase conditions for both cores. Refer to the BIOS and Kernel Developer’s Guide for
AM D Athlon™ 64 and AM D Opteron™ Processors, order# 26094, for details on P-state operation for dual core
processors.
Notes: