Asus Maximus IV Extreme-Z - Manual (Page 102)

3-10 Chapter 3: BIOS setup
VCore Phase Control [Optimized]
Phase number is the number of working 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.
When this item is set to [Extreme], the CPU Voltage is set to [Manual] and the
voltage is set to [1.2V] automatically.
Manual Adjustment [Medium]
This item appears only when you set the Phase Control item to [Manual
Adjustment]. Configuration options: [Ultra Fast] [Fast] [Medium] [Regular]
VCore Over-Current Protection [100%]
This item provides wider total power range for overclocking. A higher value
brings a wider total power range and extends the overclocking frequency
range simultaneously. Configuration options: [100%] [110%] [120%] [130%]
[140%] [150%] [160%] [170%] [180%]
iGPU Load-line Calibration [Auto]
Load-line is defined by Intel VRM spec and affects iGPU voltage. The iGPU
working voltage will decrease proportionally to integrated graphics loading.
Higher value could get higher iGPU voltage and good performance but
increase the CPU and VRM thermal. Configuration options: [Auto] [Regular]
[High] [Extreme] Extreme]]
iGPU Current Capability [100%]
A higher value brings a wider total iGPU power range and extends the
overclocking frequency range simultaneously to enhance iGPU performance.
Configuration options: [100%] [110%] [120%] [130%] [140%] [150%]
VCore EMI Reduction [Disabled]
This item appears only when you set the VCore Switching Freq item to
[Auto] and the Vcore Phase Control is NOT set to [Extreme]. It allows you to
enable the spread spectrum to reduce EMI.
Configuration options: [Disabled] [Enabled]