88 Product Errata
41322 Rev. 3.84 August 2011
Revision Guide for AMD Family 10h Processors
351 HyperTransport™ Technology LS2 Low-Power Mode May Not
Function Correctly
Description
The HyperTransport™ technology LS2 low-power state may not function correctly in all systems.
Potential Effect on System
System hang or video distortion due to excessive latency.
Suggested Workaround
System software should program the Link Extended Control Registers[LS2En] (F0x[18C:170][8]) to
0b for all links. This allows the LS1 low-power state to be used as an alternative to LS2. System
software should also program Link Global Extended Control Register[ForceFullT0] (F0x16C[15:13])
to 000b.
Fix Planned
Yes
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