QVL memory not stable on STRIX B670-I GAMING

[rtfmoz]

The entire build is described here https://au.pcpartpicker.com/b/X63Zxr

Games would crash when playing demanding titles such as Marvel Rivals. Not immediately but 15 mins into a game. This would occur repeatedly. We ran up memtest86 from the BIOS (included) and memory errors were all over the place, so ordered new memory, Corsair this time. Testing of it showed it has errors as well. We swapped the memory slots the memory errors did not follow the memory stick!

Motherboard problem?!? Had a spare (socket repair) so we swapped in the replacement motherboard, put back in the original G.Skill ram and initially a couple of memtest86 errors but reseating the memory and they disappeared. This was stable for a day then the game crashes returned. Memtest86 was still coming up fine. Turns out the replacement Corsair memory was not on the QVL list for his motherboard!

The BIOS had been updated, the memory tested but games were still crashing on him and the pattern indicated a memory issue. In the end I slowed his memory from C32 6400Mhz to default 4800Mhz and all his problems went away. Even though the G.Skill Trident Z5 RGB 32 GB (2 x 16 GB) DDR5-6400 CL32 Memory F5-6400J3239G16GX2-TZ5RK memory is listed on the QVL list for his 13th Gen Non-K series intel processor. So clearly some tweaks are needed to have it operate the XMP profile settings which is current turned off so its stable.

Any help is appreciated. Here is the System and SPD information from Memtest86 11.1 Pro. Need more info please let me know.

[Vynra]

it sounds like less about the bios and more about your cpu might have a seriously bad memory controller. the ram sticks are fine if they are not erroring out at non xmp speeds. so it points to the cpu. or try reseating the cpu as sometimes a bad mount can make it not work. 

[Silent_Scone]

Hi @rtfmoz 

1. Use Karhu RAM Test, HCI MemTest, or TM5 for thorough memory stability testing. While MemTest86 is a widely recognised standard, it is insufficient for detecting most instabilities caused by an unstable overclock.

2. Reinstall the stock retention mechanism if using a CPU contact frame.

3. Despite many misconceptions surrounding memory kits, XMP overclocking is not considered "plug & play" and manual tuning may be required depending on the frequency and density of the memory kit.

4. Reduce DRAM Frequency to 6000-6200MT and see if the instability persists.