Recommendations for Performance Tuning

For best overall DRAM Compatibility

• Install the memory in the Red slots first before occupying the grey ones.
• Install DRAM from the Red slot that is closer to the CPU first.

Remove USB devices

USB devices may decrease the system performance in some benchmarking programs. To improve performance, remove unnecessary USB hardware.

Optimal VGA Card Setup

For best performance with multiple VGA cards, please arrange them in the slot arrangement as indicated:

For optimal PCI-Express performance, please install VGA cards onto PCIE_X16_1 (Red) and PCIE_X8_B2 (Grey) if only up to two VGA cards are to be used in the build.

For 2-way SLI or CrossFire-X install expansion cards onto PCIE_X16_1 or PCIE_X16_B2 to minimize chip to chip latency when attempting to achieve optimal performance.

As such, PCIEx16_1 will be limited to x8 mode when any PCIEx16 or PCIEx8 slot is being occupied as these lanes are directly linked to the CPU PCI-Express controller.

Remember to set the PCI Express Link Speed of all CPU native slots to GEN3 when GEN3 graphics or expansion card is in used. It should detect and default to it anyway, but you can force it.

PCI-Express Power Management

Advanced\ Platform Misc Configuration\ PCI Express Native Power Management is recommended to be Disabled to prevent PCI Express devices from entering standby state to enhance both the device compatibility and performance as not all desktop based PCI Express devices support ASPM specification.

Optimal CPU Core Use

Ai Tweaker\ASUS MultiCore Enhancement setting is recommended to be Enabled to allow the ASUS BIOS to rebalance performance per watt ratio. Since ROG is focused on performance it provides a better design and overall system performance than the Intel native settings.

DMI Standby States

Both ASPM control under Advanced\ PCH Configuration\ PCI Express Configuration are recommended to be Disabled to prevent the DMI Link between the CPU and the PCH chipset, as well as the devices installed on the PCH native PCI Express slots from entering standby state to enhance both the device compatibility and performance, as not all desktop based PCI Express devices support the ASPM specification.

SATA Standby States

Advanced\SATA Configuration\Aggressive LPM Support is recommended to be Disabled to prevent SATA devices from entering standby state to enhance both the device compatibility and performance of SATA device, as not all SATA devices support SATA Aggressive LPM specification.

For Optimal [SSD] Performance Readings

For more stable I/O readings, please ensure the Advanced\CPU Configuration\Dynamic Storage Accelerator option is Enabled in the BIOS. This activates the Intel Lake Tiny Technology, which avoids the I/O performance bottleneck due to Intel power saving functions.