AMD Athlon 6 Specifikace stáhnout pdf (Strana 94)

94 Product Errata

25759 Rev. 3.79 July 2009

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

169 System May Hang Due to DMA or Stalled Probe Response

Description

Under a highly specific and detailed set of internal timing conditions, the Northbridge System

Request Queue (SRQ) may stall leading to a deadlock.

Potential Effect on System

Deadlock or machine check exception due to watchdog timer time-out leading to system hang.

Suggested Workaround

The BIOS should set NB_CFG Register[32] (MSR C001_001Fh) to 1b and set F0x68[22:21]

(DsNpReqLmt0) to 01b. No loss of performance results from this workaround.

The workaround for this erratum supersedes the workaround for erratum 131. When implementing

this workaround, the workaround for erratum 131 should not be applied.

Fix Planned

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AMD Athlon 6 Specifikace Strana 94