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For Intel-default Turbo behavior, choose Disabled — Enforce All limits. Choose an enabled option only if you prefer the less restrictive power and current limits ASUS describes and are prepared to monitor temperatures and power under your own workloads. Exact choices and behavior vary by motherboard and BIOS version.
What ASUS MultiCore Enhancement changes
MultiCore Enhancement (MCE) is an ASUS motherboard BIOS setting that affects how the board handles CPU Turbo-related settings and power and current limits. It is not a simple switch that turns all CPU Turbo functionality off: ASUS’s ROG Strix Z790 Series (Intel 14th) BIOS manual says its Disabled option uses Intel default Turbo core-ratio settings.
The choices below are those documented in that manual, not a universal list for every ASUS board. Check the manual for your exact motherboard and BIOS version before changing the setting.
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| BIOS choice in the cited manual | What ASUS says it does | When it may suit you |
|---|---|---|
| Auto — Lets BIOS Optimize | Uses ASUS-optimized core-ratio Turbo settings at default processor speeds. | Use only if you are comfortable letting the BIOS optimize settings for that board. Auto may not behave identically across boards or firmware versions. |
| Disabled — Enforce All limits | Uses Intel default Turbo core-ratio settings. | Best fit if your priority is the documented Intel-default Turbo behavior. |
| Enabled — Remove All limits | Uses ASUS-optimized power and current thresholds to maintain maximum performance. | Consider it only if you accept potentially greater power and thermal demands and can monitor your system. |
| Enabled — Remove All limits (90°C) | Uses ASUS-optimized power and current thresholds while limiting CPU temperature to 90°C; ASUS describes it as a better performance balance. | A possible middle option on firmware that offers it. It does not guarantee a particular temperature or performance result. |
Should you enable it?
Choose Disabled for Intel-default limits
If you want the Intel-default Turbo core-ratio behavior documented by ASUS, select Disabled — Enforce All limits. That choice is not the same as disabling CPU Turbo altogether; the manual describes it as using Intel default Turbo core-ratio settings.
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Choose an enabled mode only for its tradeoff
Enabled — Remove All limits is the less restrictive choice in the cited manual. Intel Support says that a CPU “runs hot and uses more power under high load while MCE is active,” and notes that high temperature ranges may occur with MCE enabled. That makes the enabled mode a tradeoff, not an automatic performance improvement worth choosing for every system.
If your BIOS offers the 90°C-limited option, it adds a temperature limit to ASUS-optimized power and current thresholds. Availability depends on the motherboard and firmware, and the limit alone does not establish what temperature or performance your particular CPU will reach.
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What performance and temperature figures actually show
ASUS announced a 90°C-limited MCE mode on January 3, 2023, and reported a comparison using an Intel Core i9-13900K: CPU temperatures were 10°C lower, with a 2.8% performance drop compared with the earlier setting. These are ASUS’s vendor-reported results for its test, not an independent benchmark or a promise for other processors, boards, coolers, or workloads. The official sources cited here do not establish an independent comparative benchmark.
Turbo behavior changes with workload and operating conditions. ASUS describes Intel Turbo Boost as dynamically increasing frequency when workload demand exists below operating limits, while managing current, power, and temperature. Actual CPU temperatures vary with the processor and BIOS settings, so no single temperature figure here should be treated as an ideal target for every system.
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How to change MCE on an ASUS board
Intel’s support article gives the following path for changing MCE from Auto to Disabled. Menu names can differ by motherboard and firmware; consult your model’s manual if the option is elsewhere or named differently.
- Restart the computer and enter BIOS by pressing F2.
- Press F7 to select Advanced Mode.
- Open AI Tweaker.
- Find ASUS MultiCore Enhancement and change it from Auto to Disabled.
- Press F10 to save and reset.
After restart, return to BIOS or use an appropriate monitoring utility to verify the setting took effect. If your BIOS presents different choices, follow the documentation for that motherboard rather than assuming this path or label applies.
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- AMD AM5 Socket: Ready for AMD Ryzen 9000, 8000 and 7000 series desktop processors
- Intelligent Control: ASUS AI Advisor, AI Networking II and AEMP to simplify setup and improve performance
- Robust Power Solution: 14+2+2 power solution rated for 80A per stage with an 8+8-pin ProCool power connector, high-quality alloy chokes, and durable capacitors to support multi-core processors
- Optimized Thermal Design: Massive heatsinks bridged to the VRMs with high-conductivity thermal pads and an integrated I/O cover
How to compare settings on your own system
If you are deciding between settings, compare them under repeatable conditions instead of relying on a single peak clock or temperature reading.
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- Run the same workload after each setting change, keeping ambient conditions and fan settings as consistent as practical.
- Observe CPU temperature, package power, clock behavior, and workload performance.
- Choose the setting that provides a worthwhile result for your priorities without exceeding the thermal or power behavior you are comfortable with.
Do you need a different CPU cooler?
Not necessarily. MCE can increase heat and power under high load, but that does not establish that every user needs a cooler upgrade. First measure temperatures during the workloads that matter to you. Consider a different cooler only if those results and your cooling capacity indicate a need; verify CPU socket compatibility, case clearance, and cooler capacity before buying.
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