Cpu bus speed dram speed ratio mode. Overclocking recommendations for ASUS ROG Maximus VI motherboards. P35 Platinum Motherboard Cell Menu

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

iGPU (built-in graphics core)
The integrated graphics core generates heat during operation. Logically, if you disable it, you can achieve better overclocking results. Use PCI-Express video card and disable (Disabled) function in BIOS iGPU Multi-Monitor Support to disable the graphics core.

CPU cooling
Use only the most best systems cooling, because LGA1150 processors are a little hotter than they could be, and under heavy loads, Thermal Throttling is possible. When overclocking, it is strongly recommended to use cooling systems that would blow over the radiators on the power subsystem. Or provide them with other fans.
Haswell processors are very temperature sensitive. 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 voltages. If you plan to assemble a system, for example, with a freon cooling system, then be sure to take care of isolating the electronic components from condensation. You can look at the processor temperature in the CoreTemp utility.
Now you can proceed to the recommendations for configuring the system in the BIOS.

UEFI BIOS

The Maximus VI Extreme comes with 5 overclocking profiles. They can become the basis for overclocking your processor instance - you just need to adjust the parameters a little.

Set the parameter Ai overclock tuner in value Manualto access the BCLK controls. You can set X.M.P mode. to set all the main parameters of the RAM in accordance with the characteristics declared by the manufacturer. This mode can also be selected as the basic one, then its settings can be adjusted.

CPU Strap sets different strap values \u200b\u200bfor the processor. This will overclock the BCLK to the maximum possible for your processor.
The relationship between BCLK, PCIE and DMI frequencies is as follows: PEG Frequency \u003d DMI Controller Frequency \u003d 100 x (BCLK / CPU Strap).
Remember that the workable strips may differ for different processors.

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) for better BCLK (base clock) overclocking, but PCI-E 3.0 performance may deteriorate 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 Filter PLL can be set to mode High BCLK Mode to achieve high BCLK values, but this threatens to increase jitter. This mode of operation is usually required to set the BCLK above 170 MHz. If you do not need such values, then feel free to set the mode Low BCLK Mode.

ASUS MultiCore Enhancement you need to enable ( Enabled) so that the system automatically raises the processor frequency to the maximum value according to your settings when they exceed the standard values.
Internal PLL Overvoltage you need to enable ( Enabled) for maximum multiplier overclocking. But also remember that S3 / S4 operation may make some RAM modules unusable.
Parameter CPU bus speed: DRAM speed ratio can be set to 100: 100 or 100: 133. Choosing one of these ratios can be useful for setting the exact frequency of the RAM. With a 1: 1 DMI / PEG frequency ratio, if the DMI / PEG frequency is increased by 1%, the memory frequency will also increase by 1%.

Turning on Xtreme 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 lower any of the six voltages while idle, even if EIST or C-States are enabled. If you need energy saving, then you need to disable this option.

The three most important voltages CPU Core Voltage, CPU Graphics Voltage, CPU Cache Voltage can be set to mode manual setting (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 the exact voltage to the CPU Vcore, CPU Graphics and CPU Cache. This mode will start working as soon as the Voltage Override values \u200b\u200bexceed the Auto values. In this mode, idle voltages will not drop even if EIST or C-States are enabled.

Parameter Offset Mode opens mode Offset Mode Sign for changing voltages CPU Core Voltage Offset, CPU Graphics Voltage Offset and CPU Cache Voltage Offset... Change these parameters to set the voltage offset level. Auto mode is a setting from ASUS professional 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 considered an extension of Offset mode. An additional set voltage will be active during Turbo Boost operation. Auto mode is a setting from ASUS professional engineers. If you change the voltage to a minimum step of + -0.001 V, then you will get the default voltage.

Disable function SVID Support stops the interaction of the processor with an external voltage regulator. When overclocking, the recommended value Disabled.
Separation of voltages into Initial CPU Input Voltage and Eventual CPU Input Voltage Allows you to more accurately set voltages before and after POST. This allows "failed" processors to pass 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 you need to enable ( Enabled) when overclocking the processor so that the system can boot into the BIOS in safe mode with incorrect frequency settings.

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

Parameter CPU Voltage Frequency can be set to “Manual” mode to select a fixed frequency. The higher the frequency, the more stable the CPU Input Voltage. Increasing this frequency can give an increase in BCLK overclocking, but it all depends on the processor instance (some may need a lower frequency for b abouthigher BCLK values). It is highly recommended to enable Enable VRM Spread Spectrum or Enable Active Frequency Modeunless you 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, the VCCIN MOS Volt Control will dynamically adjust depending on the CPU load.

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

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

CPU Current Capability install 140% to shift the overcurrent protection threshold. This will increase overclocking.

Value CPU Power Thermal Control can be increased if you have problems with overheating of the power supply. But it is strongly recommended not to change this parameter. 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 Fully Integrated Voltage Regulator (FIVR), 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 reaching the maximum processor frequency.

CPU Current Capability in meaning 130% shifts the DRAM VRM overcurrent protection threshold. Promotes increased RAM overclocking.

DRAM Voltage Frequency at 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 (remember that overclocking is different for each bar).

DRAM Power Phase Control in meaning Extreme does not allow disconnection of the memory power phases. This can allow for increased memory overclocking or increased stability if memory modules are installed in all slots.

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

Package Power Time Window - a value in seconds that indicates how much the processor is allowed to work with excess 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 under very short-term loads to avoid system instability. This can be considered the second layer of processor protection. Intel considers 1.25 of the Long Duration Package Power Limit normal. Although the Intel specification for Short Duration Package Power Limit triggering can be no more than 10ms for short-term loads, ASUS motherboards can withstand much longer.

CPU Integrated VR Current Limit determines the maximum current from the CPU Integrated Voltage Regulator at 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. Value +6% will provide a more stable supply of all six main voltages. Lowering this parameter can lower the temperature by several degrees.

Thermal Feedback determines whether the processor will throttle 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 temperature of the heatsink.

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

CPU Integrated VR Efficiency Management it is recommended to set to the mode High performanceto increase overclocking potential. Balanced mode will bring small energy savings.

Power decay mode responsible for energy saving during idle time. 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 when overclocking, it is recommended to set to the mode Fast, which allows you to supply a slightly higher voltage to the processor with the lowest delays.

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

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

Power Fast Ramp Response determines how quickly the iVR should respond to a voltage request from the processor. The higher the value, the faster the reaction will be. Can be set to 1.5 to improve overclocking.

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

Power Saving Level 2 Threshold - similar to the point above.

Power Saving Level 3 Threshold - similar to the point 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 the CPU Input Voltage and the Eventual CPU Input voltage. In Auto mode, the voltage will be set automatically, not higher or lower than safe thresholds.

PLL Termination Voltage (Initial / Reset / Eventual) it is recommended to change during extreme acceleration at negative temperatures. 1.2V nominal. Safe voltages up to 1.25V and above 1.6V. Do not set voltage between 1.25V and iVR to avoid rapid degradation of the processor.
When overclocking 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 the Eventual CPU Input Voltage is 1.9V, then the PLL Termination Reset Voltage and the Eventual PLL Termination Voltage must be 1.9V or higher for optimal effect.
If you do not plan to overclock BCLK above 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 the opposite if Max. Vcore Voltage operates under LN2 mode - in this case, lowering the voltage will increase stability. The default is 1.00 V.

Cancellation Drive Strength controls the X-Talk Cancellation Voltage operating mode.

PCH ICC Voltage - voltage to the integrated clock generator. The default is 1.2 V.
For high frequency DMI (\u003e \u003d 115 MHz), try 1.2500V or lower.
For low frequency DMI (ICC Ringback Canceller can be configured as follows:
-include ( Enable) at high DMI frequencies
-turn off ( Disable) at low DMI frequencies

Clock Crossing VBoot - nominal value 1.15000 V. Usually, it is necessary to lower this voltage to increase overclocking. Decreased values \u200b\u200bcan help to achieve higher DMI frequencies, but can also decrease the stability of PCIe 3.0 (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 decrease it to increase overclocking. The default value is 1.15000 V. Decreasing this value may help to increase the DMI frequency, but at the expense of PCIe 3.0 stability. Experience has shown that 0.8000 V may be optimal.

DMI De-emphasis Control can be manually changed 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 active.

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 can be configured manually by choosing 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) should be disabled 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

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

Please remember that if you are not familiar with BIOS settings, it is recommended to perform “Load Optimized Defaults” to quickly complete all settings, which will ensure normal system operation. Before overclocking, we recommend that users first complete this step and then make fine adjustments.

P35 Platinum Motherboard Cell Menu

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

• Intel EIST
• Adjust CPU FSB Frequency
• CPU Ratio CMOS Setting (setting the CPU frequency multiplier in CMOS)
• Advanced DRAM Configuration
• FSB / Memory Ratio
• PCIEx4 Speed \u200b\u200bController
• Adjust PCIE Frequency
• Auto Disable DIMM / PCI Frequency ( automatic shutdown DIMM / PCI frequency)
• CPU Voltage
• Memory Voltage
• VTT FSB Voltage
• NB Voltage
• SB I / O Power (South Bridge I / O Power)
• SB Core Power (power supply of the South Bridge core)
• Spread Spectrum (limiting the clock spectrum)

The user interface of the Cell Menu is very simple. It organizes related functions into groups. Users can match parameter values \u200b\u200band adjust settings step by step.

Before overclocking, please set the functions “ D.O.T. Control”And“ Intel EIST ”to“ Disabled ”(Default is Enabled). These settings will allow you to set custom values \u200b\u200bfor the processor supply voltage and the system bus frequency. After disabling these functions, the option “ CPU Ratio CMOS Setting (setting the CPU frequency multiplier in CMOS)” .

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

2. Processor frequency multiplier: Depending on the nominal processor frequency, for example, 1333MHz, 1066MHz and 800MHz, the range of the multiplier values \u200b\u200bwill be different.

3. Special DRAM configuration: This option is for setting the length of the memory delay. The lower its value, the higher the speed of work. Nevertheless, the limit of its increase depends on the quality of memory modules.

Advice:If you are using a commercially available overclocked memory module, we recommend that you go to "Cell Menu"\u003e Advanced DRAM Configuration\u003e Configure DRAM Timing by SPD, set this option to Disable, then 9 additional user options to improve memory performance.

4. FSB / Memory Ratio: This setting determines the relationship between 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 rule 1: 1.25. For example, a 1333MHz processor with DDR2-800 memory. Then 1333MHz / 4 x 1.25 x 2 \u003d 833MHz and the DDR2 frequency will be 833MHz.

5. Adjust PCIE Frequency:Typically, the bus clock speed PCI Express has no direct connection with overclocking; however, fine-tuning it can also help overclocking. (The default value is 100. It is not recommended to set this value over 120, it may damage the graphics card.)

6. CPU Voltage: This item plays an important role in overclocking, however, due to the complexity of the relationships, it is not so easy to pick it up best setting... We recommend that users perform this setting with caution, as an incorrect value may damage the processor. In our experience, when using a good fan, there is no need to set this value to a limit. For example, for processor core 2 Duo E6850, it is recommended to set the supply voltage to 1.45 ~ 1.5V.

7. Memory Voltage: Since memory is managed North bridge, the memory supply voltage should be increased simultaneously with the supply voltage of the main units. 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 similar 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:The North Bridge plays an important role in acceleration. Maintaining the stability of the processor, memory and graphics card can be achieved by increasing this voltage. We recommend users to fine-tune this parameter.

10. SB I / O Power: Southbridge manages connection peripherals and expansion cards, which play a more important role on new platforms from Intel. The default voltage for the ICH9R is 1.5V, which determines the setting of I / O voltages for peripherals. We recommend increasing the voltage to 1.7 ~ 1.8V, which will improve the stability of the connection between the North and South bridges, and also help overclocking.

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

Keep in mind that MSI highlights setting values \u200b\u200bin different colors: default settings are gray, white indicates safe values, and dangerous ones are red.

Tips: MSI warns: check the fan speed frequently. Good cooling plays a decisive role in overclocking.

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

Pressing the F11 hotkey brings up a menu to overclock the system based on hardware, cooling, and system usage. Here you can also configure the RAID array.
EZ Tunning Wizard\u003e OC\u003e Current System Configuration - the current system configuration. Next.

PC scenario\u003e Daily Computing or Gaming / Media Editing. Next.

Main cooling system\u003e Box cooler, Tower cooler or Water cooler. Next.

Estimated tuning results.

For the installed memory set, select the Extreme Memory Profiles (XMP) profile. There is only one Profile # 1 available for 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.

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

Pressing the QFan Control (F6) button will display a graph for setting seven fans and one CBO pump.
Speed \u200b\u200bcontrol. Select the target fan, then move the slider to select any of these profiles: standard, quiet, turbo, and full speed. Alternatively, move the slider to Manual and manually adjust the fan speed.

We go to the 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 at your discretion for quick access to them (for 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, the installed processor model and memory specifications, you can also select the menu language, etc.

Bookmark Ai tweaker.
Ai overclock tuner - here we select the type of RAM overclocking 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 mode, the motherboard itself selects the necessary settings closer to the optimal ones.
BCLK Frequency - system bus frequency (default value: 100 MHz). BCLK frequency changes up to 650 MHz.
ASUS Multicore Enhancement - enable or disable automatic increase of processor multipliers. AT automatic mode (Auto - default setting) the board tries to increase the multipliers of processor cores to the maximum. In disabled mode, the recommended parameters are loaded according to the 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 high frequency processor, but for AVX tasks the processor will run at a lower frequency and lose performance. In this case, errors will not appear and the overclocking will remain. Range of values: from 0 to 31 (frequency 1600MHz).
CPU Core Ratio - type of processor core multiplier control: Auto - automatic, Sync All Cores (all synchronized), Per Core - separately for each core (maximum multiplication factor can be 83) or set per 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 100 or 133 MHz steps. The current operating frequency of the memory is displayed.
TPU - the function of automatic overclocking by the forces of the motherboard. Included in BIOS settings memory, processor frequency, activation of its limits, etc. Overclocking usually occurs to the maximum Turbo multiplier. There are 2 ready-made scenarios - with a good air cooling system, and with an SVO. Default value: Keep Current Settings.
Power-saving & Performance Mode - selection of the operating mode of the motherboard. With all energy-saving features or disable them completely.
Load CPU 5G OC Profile - profile for automatic overclocking of processors of the K series, 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 the Adobe program Premiere Pro CC 2018.1, did not appear when rendering. Those. The processor and its Noctua NH-D15S cooling system worked well.
CPU SVID Support - enable or disable the ability to communicate with the processor with the power system and control it. Better to turn it off in overclocking.
Dram Timing Control - setting memory timings.
Digi + VRM - advanced settings of voltage regulators for processor, memory, PCH, etc.

Internal CPU Power Management - management of the 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 just responsible for these multipliers.

BCLK Aware Adaptive Voltage - auxiliary setting to help increase stability when accelerating over the BCLK bus.
CPU Core Voltage / Cache Control - setting the type of voltage setting for the processor (automatic, manual and additional mode. In the additional mode, 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 0.0125 V steps.
CPU System Agent Voltage - bus voltage and processor bus controller - from 0.7 V to 1.8 V with a step of 0.0125 V.
CPU Graphics Voltage - voltage of the integrated graphics processor - from 0.7 V to 1.8 V in 0.0125 V steps.
PCH Core Voltage - voltage of the south bridge (PCH), from 0.7 V to 1.8 V in 0.01 V steps.
CPU Standby Voltage - from 0.8 V to 1.8 V in 0.01 V steps.

Read about BIOS settings.