Overclocking tips for ASUS ROG Maximus VI motherboards. Recommendations for overclocking on ASUS ROG Maximus VI motherboards The correct ratio of cpu fsb and memory frequencies

RAM
When using two memory modules, install them in the red slots (located closer to the processor).

iGPU (integrated graphics core)
The integrated graphics core generates heat during operation. It is logical that by disabling it, you can achieve better overclocking results. Use a PCI-Express video card and in the BIOS disable (Disabled) the function iGPU Multi-Monitor Support to disable the graphics core.

CPU Cooling
Use only the most best systems cooling, because LGA1150 processors are somewhat hotter than they could be with heavy loads protection operation (Thermal Throttling) is possible. When overclocking, it is strongly recommended to use such cooling systems that would blow the radiators on the power subsystem. Or provide them with other fans blowing.
Haswell processors are very sensitive to temperature. The better you cool them, the more you can overclock. It has been experimentally proven that at negative temperatures the overclocking results are impressive even at reasonable voltage values. If you plan to assemble a system, for example, with a freon cooling system, then be sure to take care of isolating electronic components from condensate. You can view the processor temperature in the CoreTemp utility.
Now you can proceed to the recommendations for setting up the system in the BIOS.

UEFI BIOS

The Maximus VI Extreme comes preloaded with 5 overclocking profiles. They can become the basis for overclocking your instance of the processor - it will only be necessary to slightly adjust the parameters.

Set parameter AI Overclock Tuner into meaning Manual to access the BCLK control. You can set X.M.P mode. to set all basic parameters random access memory in accordance with the characteristics declared by the manufacturer. This mode can also be selected as the basic mode, then its settings can be adjusted.

CPU Strap establishes different meanings straps for the processor. This will allow you to overclock BCLK to the maximum possible values ​​​​for your processor.
The relationship between the BCLK, PCIE and DMI frequencies is as follows: PEG Frequency = DMI Controller Frequency = 100 x (BCLK / CPU Strap).
Remember that for different processors, workable straps may differ.

Source option clock tuner will be unavailable if the value CPU Strap not set to a fixed value.

Parameter PLL Selection can be set to Self Biased Mode (SB-PLL), which will affect the best overclocking of BCLK ( base frequency), but may worsen PCI-E operation 3.0 due to increased jitter digital signal(jitter) PCI-E. User can set Inductance/Capacitance Mode (SB-LC) to minimize PCI-E jitter for better compatibility with PCI-E 3.0 devices.

Parameter FilterPLL can be set to High BCLK Mode to achieve high BCLK values, but this threatens to increase jitter. This mode of operation is usually required to set BCLK above 170 MHz. If you do not need such values, then feel free to set the mode Low BCLK Mode.

ASUS MultiCore Enhancement must be turned on Enabled) so that the system will automatically raise the processor frequency to the maximum value according to your settings when they exceed the standard values.
Internal PLL Overvoltage must be turned on Enabled) for the greatest overclocking by the multiplier. But also remember that the operation of S3 / S4 may lead to the inability of some RAM modules to work.
Parameter CPU bus speed: DRAM speed ratio can be set to 100:100 or 100:133. Selecting one of these ratios can be helpful in setting the exact frequency of your RAM. With a DMI/PEG frequency ratio of 1:1, increasing the DMI/PEG frequency by 1% will also increase the memory frequency by 1%.

Inclusion Extreme Tweaking can achieve performance gains in older benchmarks.

Fully Manual Mode- An exclusive mode from ASUS, thanks to which you can manually adjust six key voltages per processor. In this mode, the processor will not reduce any of the six voltages during idle, even if EIST or C-States are enabled. If you need power saving, then you need to turn off this option.

The three most important voltages CPU Core Voltage, CPU Graphics Voltage, CPU Cache Voltage can be set to manual tuning mode ( Manual) to make the options available CPU Core Voltage Override, C PU Graphics Voltage Override and CPU Cache Voltage Override. In this mode of operation, the internal voltage regulator supplies accurate voltage to the CPU Vcore, CPU Graphics, and CPU Cache. This mode will start working as soon as the Voltage Override values ​​exceed the Auto values. In this mode, idle voltages will not decrease even if EIST or C-States are enabled.

Parameter offset mode opens mode Offset Mode Sign to change voltages CPU Core Voltage Offset, CPU Graphics Voltage Offset and CPU Cache Voltage Offset. To set the voltage offset level, change these parameters. Auto mode is a setting by professional ASUS engineers. If you change the voltage to a minimum step of +-0.001 V, then you will get the default voltage.

In mode adaptive mode mode will be available offset mode and additional mode Additional Turbo Mode Voltage for CPU Vcore, CPU Graphics and CPU Cache. Adaptive mode can be thought of as an extension of offset mode. The additionally set voltage will be active during Turbo work boost. Auto mode is a setting by professional ASUS engineers. If you change the voltage to a minimum step of +-0.001 V, then you will get the default voltage.

Disabling the function SVID Support stops the processor from interacting with the external voltage regulator. When overclocking, the recommended value is Disabled.
Separation of voltages Initial CPU Input Voltage and Event CPU Input Voltage This will allow you to more accurately set the voltages before and after POST. This allows "unsuccessful" processors to POST with a higher voltage and lower it for further work.

CPU Spread Spectrum must be turned off Disabled) when overclocking the processor.

BCLK Recovery must be turned on Enabled) when overclocking the processor so that the system can boot into the BIOS at safe mode with incorrectly set frequency settings.

CPU Load-Line Calibration can be set to the maximum level (8) so that the voltage does not sag when the processor is loaded during overclocking. The level can be lowered to reduce power consumption and heat generation if the system remains stable.

Parameter CPU Voltage Frequency can be set to "Manual" to select a fixed frequency. The higher the frequency, the more stable the input voltage (CPU Input Voltage). Increasing this frequency may give an increase in BCLK overclocking, but it depends on the processor instance (some may require a lower frequency for about larger BCLK values). It is highly recommended to enable Enable VRM Spread Spectrum or Enable Active Frequency Mode, if you do not intend to set a fixed value for the processor frequency.

VCCIN MOS Volt Control can be increased to improve stability, but heating will also increase. If you set the value Active VGD, VCCIN MOS Volt Control will dynamically adjust based on CPU load.

CPU Power Phase Control must be set to Extreme so that all phases are active. Otherwise, some phases are inactive during downtime. This may allow for increased frequency overclocking.

CPU Power Duty Control must be set to Extreme. In this mode, the preference is given to applying voltage to the iVR, rather than balancing with temperature. In this mode, you can get a little more acceleration.

CPU Current Capability install 140% to move the overcurrent protection threshold. This will increase acceleration.

Meaning CPU Power Thermal Control can be increased if you have problems with power overheating. But it is highly recommended not to change this setting. If you have problems due to overheating, then it is better to put additional cooling on the radiator of the power subsystem.

CPU Input Boot Voltage- the initial voltage from the power subsystem (Extreme Engine DIGI + III) to the integrated voltage controller (FIVR - Fully Integrated Voltage Regulator), which is used before the BIOS is loaded. This voltage is active before the Initial CPU Input Voltage set from Extreme Tweaker is applied. Careful selection of this voltage can help in achieving the maximum frequency of the processor.

CPU Current Capability in meaning 130% shifts the overcurrent protection threshold for DRAM VRM. Helps increase memory overclocking.

DRAM Voltage Frequency in Manual allows you to manually adjust the VRM frequency. The higher the frequency, the more stable the vDDR voltage, which will allow you to achieve greater memory overclocking (do not forget that overclocking is different for each bar).

DRAM Power Phase Control in meaning Extreme does not allow the power phases of the memory to be switched off. This may allow you to increase memory overclocking or increase stability if memory modules are installed in all slots.

Long Duration Packet Power Limit defines the maximum value for triggering throttling when power consumption exceeds a certain level. We can say that this is the first level of protection for the processor from damage. By default, this is the TDP value from Intel. If left in "Auto" mode, it will be set to the value recommended by ASUS (OC Expert Team).

Package Power Time Window- a value in seconds that indicates how much the processor is allowed to work in excess of TDP (the value that we set in the Long Duration Package Power Limit). The maximum possible value is 127.

Short Duration Package Power Limit indicates the maximum possible power consumption at very short-term loads to avoid system instability. This can be considered the second level of protection for the processor. Intel considers 1.25 of the Long Duration Package Power Limit to be normal. While Intel's specification for Short Duration Package Power Limit can be no more than 10ms, ASUS motherboards can withstand much longer.

CPU Integrated VR Current Limit determines the maximum current from the CPU Integrated Voltage Regulator under extremely high loads. The maximum value of 1023.875 essentially disables the removal of the limit for iVR, which disables throttling due to exceeding the standard current parameters during overclocking.

Frequency Tuning Mode determines the speed of the processor with iVR. Meaning +6% will provide a more stable supply of all six main voltages. Lowering this setting can lower the temperature by several degrees.

Thermal Feedback determines whether the processor will throttling when the external power subsystem overheats. This setting determines whether the overheating protection of the power subsystem will work. If you disable this protection, it is highly recommended to control the heatsink temperature.

CPU Integrated VR Fault Management it is recommended to turn it off if you increase the voltage manually. Disabling can be useful when overclocking.

CPU Integrated VR Efficiency Management recommended to set to high performance to increase overclocking potential. Balanced mode will bring some energy savings.

Power Decay Mode responsible for power saving in idle. When overclocking, it is recommended to turn off ( Disabled).

Idle Power-in Response Regular. Fast mode is set to reduce power consumption.

Idle Power-out Response during overclocking, it is recommended to set to Fast, which allows you to feed the processor a little more high voltage with the least delay.

Parameter Power Current Slope with the value LEVEL-4 shifts the throttling time a little further.

Power Current Offset defines the offset of the Power Current Slope parameter. Meaning -100% shifts the CPU throttling time.

Power Fast Ramp Response determines how fast the iVR should respond to a CPU voltage request. The higher the value, the faster the response will be. You can set the value to 1.5 to improve overclocking.

Power Saving Level 1 Threshold defines the minimum power level when the processor should start throttling. Install 0 to disable this feature.

Power Saving Level 2 Threshold- same as above.

Power Saving Level 3 Threshold- same as above.

VCCIN Shadow Voltage- the voltage that is supplied from the external power subsystem to the internal power controller during POST. This voltage is active between CPU Input Voltage and Eventual CPU Input voltage. In Auto mode, the voltage will be set automatically, not above or below safe thresholds.

PLL Termination Voltage (Initial / Reset / Eventual) it is recommended to change during extreme acceleration at low temperatures. The nominal value is 1.2 V. Safe voltages are up to 1.25 V and above 1.6 V. Do not set the voltage between 1.25 V and the iVR voltage to avoid rapid processor degradation.
When overclocking the BCLK over 160 MHz, remember to set the PLL Termination Reset Voltage and Eventual PLL Termination Voltage to the same level as the Eventual CPU Input Voltage or higher. For example, if Eventual CPU Input Voltage is 1.9V, then PLL Termination Reset Voltage and Eventual PLL Termination Voltage must be 1.9V or higher for optimal effect.
If you do not plan to overclock the BCLK over 160 MHz, then the PLL Termination Voltage should be reduced to 1.1 or 1.0 V. Simply put, set this value to 1.25 V or equal to the CPU Input Voltage for optimal results.

X-Talk Cancellation Voltage can be increased if the system is unstable (for example, BSOD 0124). But the effect will be opposite if Max. Vcore Voltage works under LN2 mode - in this case, reducing the voltage will increase stability. The default is 1.00 V.

Cancellation Drive Strength controls the X-Talk Cancellation Voltage mode of operation.

PCH ICC Voltage- voltage to the integrated clock generator. The default is 1.2 V.
For high DMI frequency (>=115MHz) - try 1.2500V or lower.
For low frequency DMI (ICC Ringback Canceller can be configured as follows:
-turn on ( enable) at high DMI frequencies
-switch off ( Disable) at low frequencies DMI

Clock Crossing VBoot- the nominal value is 1.15000 V. Usually, it is necessary to reduce this voltage to increase overclocking. Lower values ​​may help achieve higher DMI frequencies, but may also reduce PCIe 3.0 stability (raise the value if you encounter PCIe 3.0 instability). From experience, 0.8000 V can become the optimal value. Also, increasing this value to 1.65 V can shift the Cold Boot Bug during extreme overclocking (negative temperatures).

Clock Crossing Reset Voltage

Clock Crossing Voltage it is recommended to reduce to increase overclocking. The default value is 1.15000 V. Lowering this value may help increase the DMI frequency, but at the expense of PCIe 3.0 stability. From experience, 0.8000 V can be the optimal value.

DMI De-emphasis Control can be changed manually for better DMI overclocking. But the meaning +6 is optimal.

Parameter SATA Drive Strength can be manually configured to improve SATA stability. The default is 0. You can try to change in both directions.

CPU PCIE Controller in mode Disabled disables the controller built into the PCIEx16 processor to increase performance in 2D benchmarks. In this case, only the PCIE_x4_1 slot remains operational.

GEN3 Preset in Auto mode is the optimal value. But you can try all three preset profiles and choose the most productive one. This is especially useful when testing SLI or CrossFireX configurations.

PLX 0.9V Core Voltage / PLX 1.8V AUX Voltage- voltage control on PLX PEX8747 (PCIE 3.0 bridge).

PCIE Clock Amplitude you can manually adjust to find the best mode at high PCIe frequency (due to high BCLK frequency). More often than not, higher is better.

Internal Graphics(built-in graphics core) it is desirable to disable to improve overclocking.

This article is a free translation of the official ASUS ROG article.
If you find any inaccuracy, please report it in the official community

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When booting up the PC, hold down the key: Delete. And we get into the UEFI BIOS, by default in the simplified mode: EZ Mode. It displays basic information about connected devices: memory, SATA / PCIe NVMe drives, fans, processor, as well as temperature and voltage of the processor, fan speeds and system operation.

Pressing the F11 hot key will bring up a menu for overclocking the system based on components, cooling, and system usage scenario. Here you can configure the RAID array.
EZ Tunning Wizard > OC > Current System Configuration - current system configuration. next.

PC scenario > Daily Computing or Gaming/Media Editing. next.

Main cooling system > Box cooler, Tower cooler or Water cooler. next.

Estimated tuning results.

For the installed memory set, select the Extreme Memory Profiles (XMP) profile. Only one Profile#1 is available for the CORSAIR Vengeance RGB CMR16GX4M2C3200C16 Memory Kit.

A message appears: "Notice. Would you like to apply the all core enhancement with the XMP settings for improved performance? Select "No" for Intel stock operation. Sufficient processor cooling is required under the all core enhancement".
Click on the button: Yes (Yes).

And we get XMP memory DDR4-3200 16-18-18-36-1.35V.

By pressing the QFan Control button (F6), a schedule for setting up seven fans and one CBO pump will appear.
Speed ​​control. Select a target fan, then move the slider to select any of these profiles: Standard, Quiet, Turbo, and Full Speed. You can also move the slider to the "Manual" position and manually adjust the fan speed.

Go to advanced mode: Advanced Mode (F7), in it we will find 8 standard bookmarks (My Favorites, Main, Ai Tweaker, Advanced, Monitor, Boot, Tool, Exit). Bookmark: My Favorites, here you can add any parameters of your choice for quick access to them (to do this, click on "My Favorite (F3)" at the top of the menu or use the F3 hotkey).

CPU Core Ratio allows you to select three options: Auto, Sync All Cores, Per Core.

Other settings in the My Favorites tab:

Bookmark Main contains basic information about the system: BIOS version, installed processor model and memory specifications, also here you can select the menu language, etc.

Bookmark AI Tweaker.
AI Overclock Tuner- here we select the type of overclocking of RAM from the drop-down list: Auto (nominal settings without overclocking), Manual ( manual mode) and XMP (memory-only overclocking using the XMP profile). In manual and XMP modes, you can change all settings in the BIOS. In automatic, the motherboard itself selects the desired settings closer to optimal.
BCLK Frequency- frequency system bus(default value: 100 MHz). The BCLK frequency changes up to 650 MHz.
ASUS Multicore Enhancement– enable or disable automatic increase in processor multipliers. AT automatic mode(Auto - default value) The board tries to increase the multipliers of processor cores to the maximum. In off mode, recommended parameters are loaded according to Intel specifications.
AVX Instruction Core Ratio Negative Offset– setting negative multipliers for AVX instructions. Such tasks heavily load the cores, so sometimes it is advisable to leave a high processor frequency for other operations, but for AVX tasks the processor will work at a lower frequency, losing performance. In this case, no errors will appear and overclocking will be maintained. Value range: 0 to 31 (frequency 1600MHz).
CPU Core Ratio– type of processor core multiplier control: Auto - automatic, Sync All Cores (all are synchronized), Per Core - separately for each core (the maximum multiplier can be 83) or set by core depending on the load.

BCLK Frequency: Dram Frequency Ratio– selection of a multiplier for memory (1:1 or 1:1.33).
Dram Frequency- the following frequencies are available: 800-8533 MHz in steps of 100 or 133 MHz. Displays the current operating frequency of the memory.
TPU- automatic overclocking function by the motherboard. Included in BIOS settings memory, processor frequency, activation of its limits, etc. Overclocking usually occurs up to the maximum Turbo multiplier. There are 2 ready-made scenarios - with a good air cooling system, and with CBO. Default value: Keep Current Settings.
Power Saving & Performance Mode– selection of the operating mode of the system board. With all energy-saving features or disable them completely.
Load CPU 5G OC Profile- profile for automatic overclocking of K-series processors, up to a clock frequency of 5 GHz.

*The video was exported in H.264 format, the processor worked fine, no Fault Module Name: mc_enc_avc.dll in Adobe Premiere Pro CC 2018.1 did not appear when rendering. Those. both the processor and its cooling system Noctua NH-D15S worked fine.
CPU SVID Support- enable or disable the ability to communicate with the processor and the power supply system and manage it. It's better to turn it off while accelerating.
Dram Timing Control- setting memory timings.
Digi+ VRM- advanced settings for voltage regulators of the processor, memory, PCH, etc.

Internal CPU Power Management– management of processor power saving functions and power consumption limits.
Tweaker's Paradise– auxiliary settings for overclocking (VPPDDR Voltage, DMI Voltage, Internal PLL Voltage, GT PLL Voltage, Ring PLL Voltage, System Agent PLL Voltage, Memory Controller PLL Voltage).
CPU Core/Cache Current Limit Max.– the maximum load on the processor is set by a conditional value.
Ring Down Bin– parameter of the bit that controls the behavior of the processor with ring bus multipliers. You can leave it in the machine or set the maximum and minimum multiplier. Max CPU cache and Min are responsible for these multipliers.

BCLK Aware Adaptive Voltage- an auxiliary setting that helps to increase stability during overclocking via the BCLK bus.
CPU Core Voltage/Cache Control– setting the type of voltage setting for the processor (automatic, manual and incremental mode. In the incremental, the board independently sets the base voltage, and you either add relative to it or decrease it). The same parameter sets the voltage for the processor's cache memory.
Dram Voltage- memory voltage, divided into paired channels - from 1.0 V to 2.0 V with a step of 0.0066 V.
CPU VCCIO Voltage- VCCIO voltage from 0.9 V to 1.8 V in steps of 0.0125 V.
CPU System Agent Voltage- voltage of the bus and processor bus controller - from 0.7 V to 1.8 V with a step of 0.0125 V.
CPU Graphics Voltage- processor integrated graphics voltage - from 0.7 V to 1.8 V in 0.0125 V steps.
PCH Core Voltage– South bridge voltage (PCH), from 0.7 V to 1.8 V in 0.01 V steps.
CPU Standby Voltage- 0.8 V to 1.8 V in 0.01 V steps.

Read about BIOS settings.

P35 Platinum motherboard BIOS menu. All performance-related functions, except for peripherals (peripherals), system time (time), power management (power management), are in the “Cell Menu”. Users who wish to adjust the frequency of the processor, memory, or other devices (such as graphics card bus and southbridge) can use this menu.

Remember that if you are not familiar with the BIOS settings, to complete all the settings quickly, it is recommended to perform the item “Load Optimized Defaults” (load the optimal settings), which will ensure the normal operation of the system. Before overclocking, we recommend users to complete this item first, and then make fine adjustments.

Cell Menu Board P35 Platinum

All settings related to overclocking are located in the "Cell Menu" section, which includes:

• Intel EIST
• Adjust CPU FSB Frequency
• CPU Ratio CMOS Setting
• Advanced DRAM Configuration (special DRAM configuration)
• FSB/Memory Ratio
• PCIEx4 Speed ​​Controller (PCIEx4 speed control)
• Adjust PCIE Frequency
• Auto Disable DIMM/PCI Frequency ( automatic shutdown DIMM/PCI frequencies)
• CPU Voltage (CPU supply voltage)
• Memory Voltage
• VTT FSB Voltage (voltage VTT FSB)
• NB Voltage (Northbridge voltage)
• SB I/O Power (Southbridge I/O Power)
• SB Core Power (Southbridge core power)
• Spread Spectrum (Clock Spectrum Limitation)

The user interface of the Cell Menu is very simple. Related functions are grouped in it. Users can match parameter values ​​and make settings step by step.

Before overclocking, please set the functions“ D.O.T. control” and “Intel EIST” to “Disabled” state (Default is Enabled). These settings allow you to set custom values ​​for the processor supply voltage and system bus frequency. After disabling these functions, the option “ CPU Ratio CMOS Setting” .

1. CPU frequency: After loading optimal settings, this option will automatically show the CPU frequency. For example for Intel processor Core 2 Duo E6850 will show “333 (MHz)”. The frequency setting can be done with the numeric keys or the “Page Up” and “Page Down” keys. When adjusting, the value displayed in gray font “Adjusted CPU Frequency” will change according to the set frequency.

2. CPU frequency multiplier: Depending on the nominal frequency of the processor, for example, 1333MHz, 1066MHz and 800MHz, the range of multiplier values ​​will be different.

3. Special DRAM configuration: This option is for setting the duration of the memory delay. The smaller its value, the higher the speed of operation. However, the limit of its increase depends on the quality of the memory modules.

Advice: If you are using commercially available overclockable memory modules, we recommend that you go to "Cell Menu" > Advanced DRAM Configuration > Configure DRAM Timing by SPD, set this option to Disable, then you will see 9 additional custom options to improve memory performance.

4. FSB/Memory Ratio (Frequency Ratio of FSB and Memory) : This setting determines the relationship between the FSB and memory frequencies. When set to ”Auto”, the memory frequency will be equal to the processor frequency. When setting a custom value, please follow the 1:1.25 rule. For example, a processor with a frequency of 1333MHz and DDR2-800 memory. Then 1333MHz / 4 x 1.25 x 2 = 833MHz and the DDR2 frequency will be 833MHz.

5. Adjust PCIE Frequency : Usually, the clock frequency PCI bus Express does not have direct connection with acceleration; however, tweaking it can also help overclocking. (The default value is 100. It is not recommended to set this value to more than 120 as it may damage the graphics card.)

6. CPU Voltage (CPU supply voltage): This item plays a crucial role in overclocking, however, due to the complexity of the relationship, it is not so easy to pick it up. the best setting. We recommend that users perform this setting with caution, as an incorrect value may cause processor failure. According to our experience, when using a good fan, it is not necessary to set this value to the limit value. For example, for Core 2 Duo E6850, it is recommended to set the supply voltage to 1.45~1.5V.

7. Memory Voltage (memory supply voltage): Since memory is managed north bridge, the memory supply voltage should be increased simultaneously with the supply voltage of the main components. Of course, the limit of this increase depends on the quality of the memory modules.

8. VTT FSB Voltage (supply voltage VTT FSB): To ensure that all major components of the system have close operating voltages, the VTT FSB supply voltage must also be increased. This value should not be too high, so as not to cause undesirable effects.

9. NB Voltage (Northbridge supply voltage): The Northbridge plays the most important role in overclocking. Maintaining the stability of the processor, memory and graphics card can be achieved by increasing this voltage. We recommend that users make fine tuning this setting.

10. SB I/O Power (South Bridge I/O Power): The southbridge controls the connection peripherals and expansion cards, which play a more important role on new platforms from Intel. The default voltage value for the ICH9R is 1.5V, which determines the I/O voltage setting for peripherals. We recommend increasing the voltage to 1.7~1.8V, which will increase the stability of the connection between the North and South bridges, as well as help overclocking.

11. SB Core Power (South Bridge Core Voltage): Previously, during overclocking, the Southbridge was ignored, however, as the supply voltage increases, it improves performance.

Keep in mind that MSI allocates setting values different colors: gray indicates default settings, white indicates safe settings, dangerous values ​​are highlighted in red.

Tips: MSI Warning: Check fan speed frequently. Good cooling plays a decisive role in overclocking.