DDR5 RAM with low frequency is available and can be used for specific applications.
DDR5 RAM with low frequency is available and can be used for specific applications.
Hello all, I have a X670E-E running the latest available bios, a 7700x and 64gb (2x32, 6000mhz) ram, specifically this one ( https://www.canadacomputers.com/product_..._id=246580 ). Everything in the overclocking settings is at auto and it's running the ram at a target 4500mhz, with a base at 3500, is there a specific way to up that? I know the processor doesn't support anything above 5200 but would like to touch that frequency. Thanks.
Operates efficiently at rates exceeding 5200. That threshold is merely for return merchandise authorization, preventing CPU usage above that as a justification for RMA. In truth, each chip should handle 6000MT/s in direct mode with your memory solution. To boost performance, activate EXPO. On ASUS systems it’s unusual, you must navigate to the Extreme Tweaker settings and adjust the OC mode to EXPO II.
The stated speed on the AMD website refers only to performance benchmarks, not to actual capabilities. Enabling Expo on RAM without confirmation may not be safe.
Intel also follows similar practices. The 13th and 14th generation models advertise a top speed of DDR5 5600, but achieving speeds above that is feasible with the right setup (and some luck with the IMC quality). What truly counts is whether the CPU supports unlocked memory overclocking, which is now standard for most modern CPUs. If a RAM package doesn’t list EXPO, you won’t be able to activate it.
There are two main memory overclocking standards: XMP, backed by Intel, and EXPO, backed by AMD. Any kit not rated at speeds like 4800 CL40, 5200 CL42, 5600 CL46, or 6000 CL48 will lack support for these profiles. By default, it runs at its rated speed unless you enable the appropriate profile. If a kit only supports XMP, enable that. If it supports EXPO, enable EXPO. For kits with both, choose the one tailored to your CPU platform—some manufacturers like ASUS use DOCP instead of XMP for licensing reasons.
The product you mentioned lists support for both, but checking elsewhere might reveal only XMP availability. Enabling XMP is safe on AMD systems, though a brief stability check is advisable. Early BIOS updates had significant XMP reading problems, but fixes have been implemented in newer versions. Generally, a 15-20 minute memory stress test is sufficient to verify stability after enabling XMP.
Thanks for the clarification. I’ll take it as is for now. Since the EXPO versions didn’t work, I’ll focus on the DOCP settings mentioned in the BIOS info. It seems the EXPO and DOCP options might be combined there. I’ll keep this in mind and consider switching to a different board later after further research.
What memory slots are you connecting and which BIOS version are you running? It seems unlikely the sticks aren’t listed in the supported memory range. The general QVL list isn’t complete, so many devices won’t actually qualify.
You've identified the issue clearly. For best memory performance and peak speed, place the memory sticks in slots 2 and 4 on the CPU—specifically A2/B2. Running it otherwise limits memory bandwidth by half and forces the memory controller to work hard, which hinders high-frequency operation. Shifting the stick from slot B1 to A2 should resolve the problem.