Asus P8P67 PRO (REV 3.1) - Manual (Page 76)

3-10 Chapter 3: BIOS setup
Chapter 3
Primary Plane Current Limit [Auto]
Maximum instaneous current allowed at any given time for CPU cores.
Use <+> and <-> key to adjust the value at 0.125A increment.
DIGI+ VRM
Load-Line Calibration [Auto]
Load-line is defined by Intel VRM spec and affects CPU voltage. The CPU working voltage
will decrease proportionally to CPU loading. Higher load-line calibration would get higher
voltage and better overclocking performance, but increase the CPU and VRM thermal. This
item allows you to adjust the voltage range from the following percentages to boost the
system performance: 0% (Regular), 25% (Medium), 50% (High), 75% (Ultra High) and 100%
(Extreme).
Configuration options: [Auto] [Regular] [Medium] [High] [Ultra High] [Extreme]
The actual performance boost may vary depending on your CPU specifiation.
VRM Frequency [Auto]
Switching frequency will affect the VRM transient response and component thermal. Setting a
higher frequency gets faster transient response.
[Auto]
Allows you to enable or disable the Spread Spectrum item.
[Manual] Allows you to manually set the frequency with a 10k Hz interval.
VRM Spread Spectrum [Disabled]
This item appears only when you set the Frequency item to [Auto] and allows you to enable
the spread spectrum to enhance system stability.
VRM Fixed Frequency Mode [xxx]
This item appears only when you set the Frequency item to [Manual] and allows you to set
a fixed VRM frequency. Use the <+> and <-> keys to adjust the value. The values range from
300k Hz to 500k Hz with a 10k Hz interval.
Phase Control [Stadard]
Phase number is the number of woorking VRM phase. Increasing phase number under
heavy system loading to get more transient and better thermal performance. Reducing phase
number under light system loading to increase VRM efficiency
[Standard]
Proceeds phase control depending on the CPU loading.
[Optimized] Loads the ASUS optimized phase tuning profile.
[Extreme] Proceeds the full phase mode.
[Manual Adjustment] Allows manual adjustment.
Manual Adjustment [Medium]
This item appears only when you set the Phase Control item to [Manual Adjustment].
Configuration options: [Ultra Fast] [Fast] [Medium] [Regular]
Duty Control [T.Probe]
[T.Probe] Maintains the VRM thermal balance.
[Extreme] Maintains the VRM current balance.