Issues when using 4 RAM sticks with DOCP/EXPO activated on Ryzen 7950X3D + x670E
Issues when using 4 RAM sticks with DOCP/EXPO activated on Ryzen 7950X3D + x670E
Hello, I recently set up a new system and encountered some problems... The system isn't stable when using 4 sticks of RAM with DOCP/EXPO activated.
CPU: R9 7950X3D
MOBO: TUF GAMING X670E-PLUS (latest bios)
RAM: KINGSTON FURY BEAST KF560C40BB-16 DDR5 6000MT/s CL40-40-40 1.35V XMP
GPU: MSI RTX 4080 16GB GAMING X TRIO
PSU: Corsair RM1000x
WC: MSI MAG CORELIQUID P360
CASE: NZXT H9 FLOW
After a fresh installation with the latest drivers and chipset updates, I tested stress conditions. Running at P95 with only 2 sticks (2x16) and DOCP enabled (6000MT/s) gave stable performance. However, when using all 4 sticks (4x16), errors appeared at P95. Removing DOCP resolved the issue, but the RAM speed dropped to 3600MT/s. I've tried DOCP levels 1, 2, and TWEAKED versions without changing results. I believe AMD has already addressed this problem.
Please confirm the BIOS version currently running on your motherboard.
TUF GAMING X670E-PLUS BIOS 1601
1601 Version
Beta Version
9.13 MB
2023/05/04
"Before running the USB BIOS Flashback tool, please rename the BIOS file (TX670EPL.CAP) using BIOSRenamer.
1. Update AGESA version to Combo AM5 PI 1.0.0.7.
2. Support 48/24GB high-density DDR5 memory module.
3. SoC voltage for Ryzen 7000 series limited to a maximum of 1.30V to protect the CPU and motherboard.
Please note that this is a beta BIOS version of the motherboard which is still undergoing final testing before its official release. The UEFI, its firmware and all content found on it are provided on an “as is” and “as available” basis. ASUS does not give any warranties, whether express or limited, as to the suitability, compatibility, or usability of the UEFI, its firmware or any of its content. Except as provided in the Product warranty and to the maximum extent permitted by law, ASUS is not responsible for direct, special, incidental or consequential damages resulting from using this beta BIOS."
100% stable with 2 sticks w/ DOCP 1 enabled.
But with 4 sticks and DOCP enabled, I didn’t get any bsod or anything, just errors on P95, so I’m assuming the system is unstable (I didn’t even get the time to get a bsod tho, I finished the build today)
I have also experimented with performing regular tasks to identify any potential problems.
I believe Buildzoid mentioned that it's not advised to operate EXPO on a 4-DIMM configuration.
Yes, I purchased four different 16gb RAM sticks... but they all look identical (as claimed).
I receive the part number from the dimm box, so I’m unsure if it matches correctly.
Up to now, the system works fine without EXPO enabled; I didn’t test it with EXPO active.
I plan to sell these four 16gb sticks and buy a 2x32gb kit.
Link: https://www.visaovip.com/produto/me...d-...b-16/32406
I believe I missed a '5' in the part number... the right one should be KF560C40BB-16.
But why is this happening? Will a BIOS update resolve this issue eventually?
System issues persist when EXPO is active. According to OCCT, all four dimmers match perfectly, yet the problem remains unresolved. 4 dimms on a 7-gen unit are problematic—definitely not acceptable!