xmp 3.0 Compatible with 64GB SSD (two 16GB modules), 6400MT/s DDR5 RAM, 12700K processor, and Z690 motherboard.
xmp 3.0 Compatible with 64GB SSD (two 16GB modules), 6400MT/s DDR5 RAM, 12700K processor, and Z690 motherboard.
Hello, here are the details you shared:
I received a new RAM kit (12700K Gigabyte Z690 Aorus Pro ASUS RTX ROG Strix OC 4090 Seasonic Vertex GX1200 BIOS) with Windows 11 23H2. The RAM is running at XMP profile, and my CPU has been overclocked. Everything seems stable for a few days now. Others using the same setup have reported success.
According to PCPartPicker and Micro Center, the RAM I’m planning to buy matches my CPU/motherboard configuration (G.SKILL Trident Z5 RGB Series, DDR5 64GB, 6400MT/s CL32-39-39-102, 1.40V).
Earlier, when I bought this RAM, XMP was enabled automatically, and performance was good except for occasional crashes (COD and Unity). After reinstalling the GPU driver and overclocking the CPU, I experienced BSODs that damaged my OS. Memtest86+ showed memory failure, so I returned it.
My motherboard supports up to 6200MT/s, but only 32GB RAM is available. G.Skill tested 64GB kits but only up to 5600MT/s. While some say this should work, overclocking can be unpredictable. My build uses a 6-layer PCB, which isn’t ideal for this kit but should still function. The power phases (16+1+2) appear adequate.
Could anyone explain why 64GB at 6400MT/s with CL32 is challenging on my board? Have others had success with similar configurations? Would overclocking the CPU increase the risk of BSODs? I’m considering leaving the CPU at stock speed next time to avoid risks.
Also, did the DIMMs I sent back affect the memory test results? I’ve attached the system specs and the Memtest86+ failure logs for your reference. Thanks!
It's a dual rank issue and the memory controller on the 12700K isn't performing well. This is likely the reason. XMP settings aren't always automatic; they need your motherboard and CPU to support those speeds, which isn't happening here. The 6000 MHz is probably the fastest I'd expect, but it's usually enough for 2x32GB on a 12th gen chip.
Consider enabling XMP first, then adjusting the frequency to 6000. Make sure to also modify the timings accordingly.
I installed the new RAM package and it matched exactly. The system is operating at the XMP setting while my processor is overclocked. It's been stable and performing well for several days now. If others are trying this setup, it should work too.