Running DDR5-5600 at 4800MHz is achievable with proper setup.
Running DDR5-5600 at 4800MHz is achievable with proper setup.
I possess 32GB of DDR5-5600 CL46 RAM from Crucial installed in my system. Performance is poor, especially since my Intel Core i5-14400F only supports 4800MT/s. The issue stems from the lack of XMP support, which forces the RAM to operate at 4000MT/s. Without altering timings, it remains stable around 4400MT/s and mostly steady at 4600. However, it fails to boot at 4800. Enabling XMP doesn’t resolve the problem, regardless of timing settings. My goal is to adjust the RAM timings so it reaches the desired 4800MT/s. I’m unsure where to begin, but I’m seeking guidance from the community. What should be my first step?
Motherboard reference? Screenshot from CPU-Z showing the SPD section with a RAM stick chosen. The specific model doesn't matter at that moment.
I have an Asus Prime B760M-A-AX that works with XMP 1 and 2. I'm checking CPU-Z and mostly see slow speeds. I'm using slots 1 and 3 instead of 2 and 4 since slot 2's retaining clip is broken. The board was more affordable for that reason.
Typical question, are you up to date or at least have a recent bio? Lower CPU support shouldn't cause issues. Asus has an odd approach with XMP I and II. I believe XMP I involves using primary timings and letting everything else be set. XMP II reads full details from the RAM. Consider using II if you haven't already. This might add another layer since RAM can have multiple XMP profiles. Test both 5200 and 5600 profiles when enabling XMP. I'm uncertain how this appears on Asus. I haven't encountered any issues with slots 1+3 in DDR4, but I'm not sure it still works for DDR5. Without a clip, try 2+4—usually they stay secure thanks to friction.
This might be the issue you're facing. Others have reported problems with XMP and consistent boot performance when using slots 1 and 3. If 4400 is the highest you can achieve, it's not a major concern—your system remains responsive enough for everyday tasks.
The issue lies with your setup. The board is connected in a daisy chain, which reduces signal quality and forces it to operate at a slower memory rate. Consider using the slots with the damaged clip, though you may have to accept the reduced performance.
Some believe the CPU could handle higher RAM speeds than officially supported. This idea isn't universally confirmed, but it's worth discussing.
The official recommended RAM speed provided by Intel (and similarly AMD) is the minimum they assure will function properly if set right. Values higher than that aren't guaranteed. Likely, most CPUs will exceed it, though certainty isn't absolute. It varies based on the CPU model, motherboard, BIOS, RAM type, and configuration settings.