BIOS settings that may affect input lag:


All the settings in this section are for advanced users, if you are not sure what you are doing, better skip this section. Remember, everything you do - you do at your own risk! The author does not bear responsibility for the consequences.


The closest you can get this to 100.00, the better.

Memory strap (Memory Multiplier)

100:100. 100:100 should obviously provide better results since it matches BCLK. Memory with higher frequency and lower timing can reduce latency.

EIST, C-States etc.

Disable as many of these as possible because they bring a lot of lag cause of dynamically changing the cpu frequency.

Execute Disable Bit

Is an Intel hardware-based security feature that can help reduce system exposure to viruses and malicious code. I just disable it.

Intel Virtualization Technology

Disabled for any gaming PC if u dont use VirtualBox etc.

1394 controller

Probably 99% of people don't use it.

On-board audio

Enormous input lag. Should be disabled.

On-board video

Disable unless you use it.

HPET (High Precision Event Timer)

HPET is a hardware timer used in personal computers. Disable to lower input lag and DPC latency (ASUS motherboards dont have this option).

Secondary LAN

Disable to lower DPC latency.

CPU Power Phase Control

Extreme / Full.

CPU VRM Switching Frequency

Manually set 500Khz or higher.

PCIEx16_1 Link Speed

Manually set Gen3.

Legacy USB Support

Usually have to leave this enabled in order to get back into the BIOS but sometimes will have better mouse response with it off. Varies highly by motherboard.

Other settings affect weakly or don't affect at all. There are some general recommendations:

Adjust in the BIOS - "off" everywhere is possible, disable unused SATA ports, monitoring case fans and stuff, but you need to remember, you are doing everything at your own risk!