The motherboard continues to display code A6.
The motherboard continues to display code A6.
Hi everyone,
I recently installed a new computer and have faced some unpredictable problems with my RAM. After updating Windows and ensuring all settings were configured properly—including BIOS, chipset, and EXPO—I restarted the system and enabled EXPO. I left the profile set to auto, which maintained the RAM at 1.35V and 6000MHz.
During code 15 (presumably memory testing), my computer would trigger code A6. After clearing CMOS, lowering the speed to 5800MHz resolved the issue temporarily, but when I powered it off and restarted the next day, the same problem resumed. Once I cleared CMOS again and set the speeds back to 5600MHz, the issue disappeared during reboots.
I can access BIOS and successfully boot after clearing CMOS, where the RAM was set to 4800MHz with EXPO disabled.
Could you confirm if this points to a RAM-related problem? If so, what steps should I take to fix it and avoid future occurrences? Ideally, I’d like to run my RAM at 6000MHz if possible.
Thank you for your help and any additional details you might have.
Specs: MSI MPG X670E, RYZEN 9 7950X3D, G.SKLIZ 32GB DDR5 RAM with EXPO, BIOS version E7D70AMS.180 (7D70v18).
I attempted to execute memtest86 but the machine abruptly shut down during the process. There were no error codes displayed, only a power-off occurred. This happened when EXPO was active and RAM was set to 6000MHz. I plan to test without EXPO enabled next time.
The installed PSU details are: make, model, wattage, age, and condition (original to build, new, refurbished, used).
Check the motherboard's supported RAM setups. Certain boards need the first physically placed RAM in a designated slot.
This motherboard?
https://download.msi.com/archive/mnu_exe...ONWIFI.pdf
DIMMA2 should be the initial RAM slot. See the numbered page 29 for confirmation.
Make sure you have the right motherboard User Guide.
The total RAM setup is 2 x 16 GB and 4 x 8 GB.
That said, going back a bit...
The required drive speed for 6000 mzh is highly unlikely to affect overall performance noticeably compared to the lower speeds mentioned.
In most cases, the system probably can't fully support 6000.
If the speed could be adjusted and the system consistently runs at 6000, it might lead to more serious long-term issues.
Hi Ralston, that’s the right motherboard! All components except the GPU are new, except for the GPU which I’m using from my previous system. I have two 16GB RAM sticks connected to A2B2 according to the manual. If running at 6000MHz won’t give much extra performance, I’m okay with the system running smoothly at a slower speed. The power supply is an SF1000L (1000W) from Corsair, installed on Friday 9/29.
Check if the system remains stable without any adjustments. Allow a few days to confirm ongoing stability. Software updates, backups, or connectivity attempts might be occurring. Making multiple changes simultaneously complicates troubleshooting. Avoid additional testing or modifications. Record issues and events for reference. Proceed to resolve problems one by one in a systematic way.