AMD Athlon 6 Specifications download pdf (Page 90)

90 Product Errata

25759 Rev. 3.79 July 2009

Revision Guide for AMD Athlon™ 64 and AMD Opteron™ Processors

154 Incorrect Diode Offset

Description

Some dual-core AMD Opteron™ processors (939-pin package) have an incorrect diode offset

(Thermtrip Status Register [DiodeOffset], Dev 3xE4h[13:8]. The affected units can be identified as

follows:

• CPUID Fn[8000_0001]_EBX(11:0) = 2Ch, and

• Thermtrip Status Register [TCaseMax] (Dev 3xE4h[28:25]) <= 2 (53

C).

Potential Effect on System

Thermal management events that depend on the diode offset field may occur 10 degrees earlier than

expected.

Suggested Workaround

For affected systems BIOS should add 10

C to the signed diode offset value.

Fix Planned

Yes

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AMD Athlon 6 Specifications Page 90