BIOS settings that may affect input lag:
ATTENTION: 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.
BCLK: 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 lower 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
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.
Hyperthreading (if u have i7):
For each processor core that is physically present,
the operating system addresses two virtual (logical) cores and shares the workload between them
Turning off hyper-threading gives more fps in csgo.
UEFI vs Legacy boot Legacy tends to be better with a more classic mouse movement.
PC will not boot if u have installed UEFI OS or have GPT filesystem.
CPU Power Phase Control Extreme / Full.
CPU VRM Switching Frequency Manually set 500Khz or higher.
PCIEx16_1 Link Speed Manually setting Gen3 better than Auto.
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
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!
Why is there so little?
There are many motherboard manufacturers, and there are plenty different chipsets, in the same
time don't forget about AMD users with the same situation. Therefore, with all my will I can't cover the whole range of settings, but in
time I will try to add. As it mentioned above, principle is simple - disable all unnecessary
options, manufacturers features (like Asus Multicore Enhacement) and other. Do nothing if you
are not sure, read first about specific option.
Everything written on is not for beginners. I can't write general manual for all systems, but I
would love to do it. CS:GO positively responds to the increase in the processor's frequency,
sometimes an increase for 400-600 MHz can give an increase of about 100 FPS and raise the
minimum values, increasing the comfort of your game.
The situation is such that having an Intel processor with an index K (4690k etc), it's enough to
go into the BIOS, find the setting CPU Ratio there and set the desired value.
The Cpu ratio is multiplied by the BCLK frequency, the Cpu ratio 45 multiplied by the BCLK 100
will give you 4500MHz, as a rule there is no need to change the other settings for this
overclocking, most motherboards automatically increase the voltage to enough to work at that
frequency, but if you know , what are you doing, you can set the value manually.
Don't even think about overclocking with Intel box-cooler installed in your system, all this can
be done if you have purchased a normal tower air cooler before :).
After overclocking, monitor the temperatures with utilities such as RealTemp, AIDA64, MSI
Afterburner and any others you wish to. Whatever you do, you do it on your own risk, remember