Troubleshooting XMP Profile Failure After Enabling Secure Boot on ASRock B550M Pro4
Many PC enthusiasts and gamers prioritize optimal memory performance, often utilizing XMP profiles to run RAM modules at their rated speeds. However, users occasionally encounter issues where, after enabling security features like Secure Boot, their XMP profiles cease to function correctly. This article explores common causes, troubleshooting steps, and solutions based on user experiences with the ASRock B550M Pro4 motherboard and AMD Ryzen processors.
Understanding the Context
Recently, some users have reported that enabling Secure Boot—primarily for enhanced security or to play specific games such as Battlefield 6—can inadvertently cause their memory modules to default to lower speeds, typically around 2133MHz, even when XMP profiles are enabled. In these cases, the RAM, which previously operated at 3200MHz, becomes stuck at default or lower frequencies, impairing performance.
Common Symptoms
- RAM running at lower speeds than rated, despite XMP being enabled.
- XMP profiles appearing enabled in BIOS, but not applying the correct timings or frequency.
- System stability issues after enabling Secure Boot.
- BIOS reset or battery removal not restoring ideal memory settings.
User-Specific Setup
- Motherboard: ASRock B550M Pro4
- Processor: AMD Ryzen 5800X3D
- Memory: 32GB DDR4 RAM at 3200MHz (stuck at 2133MHz after changes)
Troubleshooting Steps and Recommendations
1. Verify BIOS Version and Settings
While the user reports the BIOS is up-to-date, ensure it’s the latest available. Sometimes, BIOS updates include memory compatibility improvements and fixes for issues arising from security features.
- Update BIOS to the latest version from ASRock’s official website.
- After updating, perform a full reset to default settings, then re-enable XMP profiles and Secure Boot carefully.
2. Disable and Re-enable Secure Boot
Enabling Secure Boot can sometimes alter system firmware configurations affecting memory timings.
- Disable Secure Boot in BIOS.
- Save and reboot, then re-enable Secure Boot if necessary.
- Check whether the RAM operates at its rated speed.
3. Clear CMOS Properly
The user already tried removing the CMOS battery, but that can be complemented or replaced with other methods.
- Use the BIOS reset jumper if available.
- Power down the system and unplug from power source.
- Remove the CMOS
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