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10 315889-002
• New power-on sequence
• Extended VR 10.x VID table with a 7th bit for 6.25 mV resolution and 0.83125 V to
1.6 V range, only 12.5 mV resolution will be used in Dual-Core Intel Xeon
Processor-Based Platform and Intel E8500 platforms.
• Support for a separate additional VR 11.0 VID table with a 8-bit table and 6.25 mV
resolution with a 31.25 mV to 1.6 V VID range, only 12.5 mV resolution will be
used in Dual-Core Intel Xeon Processor-Based Servers and Intel E8500 platforms
with a VID setpoint range of 0.850 V to 1.6 V.
• Tighter DC load line tolerance from ±20 mV to ±15 mV
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Table 1-2. Guideline Categories
Guideline Categories
REQUIRED:
An essential feature of the design that must be supported to ensure correct processor and
VRM/EVRD functionality.
EXPECTED:
A feature to ensure correct VRM/EVRD and processor functionality that can be supported
using an alternate solution. The feature is necessary for consistency among system and
power designs and is traditionally modified only for custom configurations. The feature may
be modified or expanded by system OEMs, if the intended functionality is fully supported.
PROPOSED:
A feature that adds optional functionality to the VRM/EVRD and therefore is included as a
design target. May be specified or expanded by a system OEMs.