03-10-2023 12:50 PM
03-10-2023 01:15 PM
03-10-2023 03:05 PM
03-11-2023 02:00 AM
I have the same setup and same issues. Updated to latest 904 Bios with no change. I have however been able to get XMP1 and XMP2 working by dropping down to just 2 dimms for a total of 64gig of ram. Hoping for a bios update in the future that addresses this issue. Running 64 gig ram at the full 6400 mem speed. So its a trade off. 128gig at slower speeds, or 64gig full throttle.
Cheers and good luck!
Experienced memory overclocker here. I think i might be able to help. *knocks on wood*. In your bios where it gives you the option to enable xmp, is there a feature that says "manual"? If so, select manual instead of xmp. Then set the frequency to 6400mhz. Then manually set the primary timings to 32-38-38-100 instead of 32-39-39-102. Make sure you set command rate to 2T. Manually set your ddr vddq voltages both to 1.4v and set the IVR vddq voltage to 1.4v. Manually set both the system agent voltage and the memory controller voltage both to 1.3v each. Try to boot. If it doesn't boot, try setting both the system agent voltage and the memory controller voltages each to 1.35v. See if it boots. If it doesn't boot, reset your cmos and try using 32-38-38-101 for the primary timings while starting at 1.3v system agent voltage + 1.3v memory controller voltage to start. See if it boots. If not, try 1.35v system agent voltage and 1.35v memory controller voltage. These suggestions are based off of myself and other users having to set slightly tighter timings(32-38-38 instead of 32-39-39) to get ddr5 6400mhz 32-39-39 kits to work at the rated speed on various platforms.
Please let me know how it turns out.