AMD ADA3400AEP4AX Datasheet download pdf (Page 55)

PID: 30430 Rev 3.51 March 2006 AMD Athlon™ 64 Processor Power and Thermal Data Sheet

55AMD Athlon™ 64 FX 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 Develop er’s Guide for AM D Athlon™ 64

and AM D Opteron™ Processors, order# 26094.

2 FIDVID Status Register, M SR C001_0042h.

3 The VID_VDD voltage is the VID[4:0] requested VDD supply level. Refer to the appropriate functional data

sheet for details.

4 Thermal Design Power (TDP) is measured under the conditions of Tcase M ax, IDD M ax, and VDD=VID_VDD,

and include all power dissipated on-die from VDD, VDDIO, VLDT, VTT, and VDDA.

5 Implementation of this P-state is optional in BIOS.

6 StartVID and M axVID are programmed during device manufacturing with part-specific values for Rev E and later

rocessors, and can have one or more valid options. All valid options 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 Develop er’s Guide for AM D Athlon™ 64 and AM D Op teron™

Processors, order# 26094. Contact y our FAE for more info on TDP specifications.

7 Thermal Design Power (TDP) sp ecifications 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:

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AMD ADA3400AEP4AX Datasheet Page 55