From Black Screens to Gaming: Resolving AM5 Memory Mysteries


Initially, the system required 5-10 minutes to boot into BIOS, and despite adjusting BIOS settings and resetting both the BIOS and CMOS, the subsequent Windows load times varied. Reboots seemed quicker, but cold starts were lengthy, often necessitating multiple restarts.

This inconsistency persisted even with a single DDR5 RAM stick, confirming its functionality. The system also utilized the integrated graphics processor.

After installing the remaining components and improving cable management, I expanded the memory to 128 GB. However, I’m now facing a black screen with no signal, and my monitors are entering standby mode.

From my research, one individual reported over 45 minutes of wait time, and others have experienced similar issues with AM5 platforms, though the exact durations varied or were unspecified. After waiting for over four hours, I’m eager to perform benchmarks, resume gaming, and finalize cable management behind my desk.

Here’s my build specification: [PCPartPicker List](, excluding two Corsair fan controllers and my Elgato. Note that the fan count has increased to seven, incorporating two from my AIO cooler.

Given these circumstances, how long should the memory training process typically take? Should I remove one of the top five fans to troubleshoot the remaining three RAM sticks? Additionally, would another CMOS/Bios reset be advisable?

Update: I’ve identified a faulty RAM stick and am about to test the three functioning ones to ensure smooth operation.


When constructing a high-performance computer, particularly one with an AM5 motherboard and a substantial 128 GB of DDR5 RAM, users may encounter various challenges, including prolonged memory training times and boot inconsistencies. These issues can be perplexing, especially when the system exhibits erratic behavior, such as faster reboots contrasted with slow cold starts.

Memory training is a process where the motherboard tests different memory configurations to ensure stability and compatibility. The duration of this process can vary significantly based on several factors, including the motherboard’s firmware, the RAM’s specifications, and the overall system configuration. While some users have reported memory training times exceeding 45 minutes, others have faced shorter or unspecified durations. In the case of AM5 platforms, extended memory training times are not uncommon, especially when dealing with large capacities like 128 GB.

Troubleshooting Steps:

Given the symptoms described—such as the black screen and monitors entering standby mode—it’s advisable to approach troubleshooting methodically:


Test Individual RAM Sticks:

Since a faulty RAM stick has been identified, testing each remaining stick individually can help isolate any additional issues.


Check for BIOS Updates:

Manufacturers often release firmware updates that can improve memory compatibility and reduce training times.


Re-evaluate System Configuration:

Removing non-essential components, such as extra fans, can help determine if there’s an issue with power distribution or airflow affecting the system’s performance.


Reset CMOS/Bios:

If the system remains unresponsive, another reset may be necessary. This can clear any settings that might be causing conflicts during the memory training process.


The memory training process is crucial for system stability but can be time-consuming. Patience is key, and if the issue persists, consulting with the motherboard manufacturer or a professional technician may provide additional insights. Ultimately, ensuring all components are functioning correctly and compatible with each other will lead to a successful build ready for gaming, benchmarking, and efficient cable management.

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