How to Use EXM BIOS Tuner

EXM BIOS Tuner allows supported systems to access and configure compatible BIOS-level settings directly through EXM.

BIOS settings can influence areas such as:

  • CPU behavior

  • Memory performance

  • Power management

  • Hardware latency

  • System responsiveness

  • Overall system stability

The settings available inside BIOS Tuner will vary depending on your motherboard, CPU, BIOS version, and manufacturer. citeturn860965search8

Before Using BIOS Tuner

Before making BIOS-level changes, we recommend:

  1. Make sure your system is currently stable.

  2. Update EXM to the latest version.

  3. Save important work and close unnecessary applications.

  4. Create a backup or restore option where appropriate.

  5. Avoid changing multiple unrelated BIOS settings at the same time unless you understand their effects.

BIOS-level tuning is more advanced than standard Windows optimization, so take your time and review the available options before applying them.

Step 1: Open EXM

Launch EXM with Administrator privileges.

Allow EXM to finish detecting your hardware before continuing.

Then navigate to the BIOS Tuner section.

Step 2: Allow EXM to Detect Your BIOS

BIOS Tuner will check your system for supported BIOS configuration options.

The settings you see depend on your specific hardware.

Two users with different motherboards may see completely different options.

This is normal.

Step 3: Review the Available Settings

Before applying anything, review the BIOS settings EXM has detected.

Only use settings that are supported and displayed for your system.

Do not assume that a BIOS setting recommended for another CPU or motherboard should also be used on yours.

Step 4: Read the Setting Information

Review the description provided for each option before changing it.

BIOS settings can affect different areas of system behavior, including:

  • Performance

  • Latency

  • Power usage

  • CPU behavior

  • Memory behavior

  • Stability

If you are unsure what a setting does, leave it unchanged until you understand its purpose.

Step 5: Apply Your BIOS Optimizations

Select the BIOS optimizations appropriate for your system.

Once you are satisfied with your configuration, allow EXM to apply the changes.

Do not force-close EXM or shut down your PC while BIOS-related changes are being processed.

Step 6: Restart Your PC

Restart your PC after applying BIOS Tuner changes.

BIOS-level settings generally require a reboot before they are fully active.

Allow Windows to boot normally afterward.

Step 7: Test System Stability

After restarting, use the PC normally and test the workloads that matter to you.

For gaming systems, test:

  • Your normal games

  • FPS

  • 1% lows

  • Frametime consistency

  • CPU temperatures

  • GPU temperatures

  • General stability

For performance comparisons, use the same game, benchmark, settings, and testing conditions before and after making changes.

EXM already recommends recording temperatures and repeating the same benchmark conditions when evaluating optimization results. citeturn860965search7

Do Not Judge Performance From FPS Alone

A BIOS optimization may affect more than average FPS.

Also consider:

  • 1% lows

  • Frametime consistency

  • Input responsiveness

  • System latency

  • Temperatures

  • Stability

A change that slightly increases average FPS but causes crashes or instability is not a good configuration for your system.

What If My PC Becomes Unstable?

If you experience issues such as:

  • Blue screens

  • Freezing

  • Random restarts

  • Game crashes

  • Boot problems

  • Unusual hardware behavior

revert the most recent BIOS changes.

Avoid continuing to apply additional BIOS tweaks while the system is unstable.

If necessary, enter your motherboard BIOS manually and restore the affected settings or load stable defaults.

ASUS Motherboard Users

Some ASUS motherboards require additional BIOS configuration before EXM BIOS Tuner can access supported settings.

You may need to configure:

  • Publish HII Resources: Enabled

  • Password protection of Runtime Variables: Disabled

The exact location of these settings varies by ASUS motherboard and BIOS version. citeturn860965search1

See our How to Enable EXM BIOS Support on ASUS Motherboards guide for complete instructions.

BIOS Tuner Is Not Detecting Any Settings

If BIOS Tuner does not display supported options:

  1. Restart the PC.

  2. Make sure EXM is updated.

  3. Run EXM as Administrator.

  4. Confirm your motherboard and BIOS are supported.

  5. Check whether your motherboard requires additional BIOS configuration.

ASUS users should follow the How to Enable EXM BIOS Support on ASUS Motherboards guide.

Availability can vary based on:

  • Motherboard manufacturer

  • Motherboard model

  • Chipset

  • CPU

  • BIOS version

  • Manufacturer firmware implementation

Not every motherboard exposes the same settings to EXM. citeturn860965search8

Should I Update My BIOS First?

You do not need to update your BIOS simply because you want to use BIOS Tuner.

If your current BIOS is stable and supported, updating may not be necessary.

BIOS updates should generally be performed when you have a specific reason, such as:

  • Hardware compatibility

  • Manufacturer fixes

  • Security updates

  • Stability fixes

  • Required support for a feature

Do not interrupt a BIOS firmware update once it has started.

Can I Still Enter My BIOS Normally?

Yes.

EXM BIOS Tuner does not prevent you from entering your motherboard's normal BIOS or UEFI interface.

You can still manually access your BIOS whenever necessary.

Need Help?

If BIOS Tuner does not detect your motherboard correctly or you experience an issue after applying a setting, contact EXM Support and include:

  • Motherboard manufacturer

  • Motherboard model

  • CPU

  • BIOS version

  • Screenshot of BIOS Tuner

  • Settings you applied

  • Description of the issue

I’d also cross-link this directly with your existing ASUS BIOS Support article, since ASUS systems have those additional HII/runtime-variable requirements. EXM Support