Windows won’t boot due to XMP settings issue.
Windows won’t boot due to XMP settings issue.
You own an Alienware Aroura R12. Initially, it came with hyper fury RAM (2x8GB at 3200mhz). You swapped it for Corsair Vengeance LPX (2x16GB at 3200mhz) without any problems. The system runs smoothly at 3200mhz and boots with XMP after four months. Recently, you reordered the same Corsair kit from Amazon. All four sticks are identical except for their serial numbers. You need to enter them in the BIOS, enable XMP, save, and reboot. After a boot cycle, the RAM operates at 2133mhz without XMP. When you try to enable XMP again, the system defaults to 2133mhz with XMP off. From Dell’s advice, they suggested contacting Corsair for further help. They sent you memtest results for each stick, which all passed without errors. You shared this on Reddit but got no replies. You’re wondering if there’s a way to manually adjust the voltage settings or download a tool to change them. Thanks for your patience.
Have you reset the CMOS? Also, attempt testing the new Corsair on slots 2 and 4, then place the remaining Corsair on slots 1 and 3.
I removed the battery to clear CMOS, but that didn't work. I had to do it again just to run memtest. I plan to switch slots in the morning and make sure they function properly regardless of seating. I think @Bombastinator might be closer to the problem, so I'm hoping Corsair will update their kits—maybe a 4-stick setup instead of two 2-stick kits—or adjust the settings to use 2x32GB sticks rather than 4x16GB. They probably won't fix it, but someone can try.
I only came across this term recently. If I’d known, I’d have just waited for a set of four instead of two smaller ones.
What are the hardware details? For Intel chips from the 10th generation onward or earlier, or second-gen 9rd earlier Ryzen models, the CPU memory controller might not support four sticks at that speed. These older processors weren't tested for RAM at that frequency, and especially with newer Ryzen or 6th/7th gen Intel systems, XMP settings often failed when using more than four sticks above 3000MHz.
the i7 11700f motherboard from the z490 owner's guide supports up to 128gb at 3600mhz edited april 26, 2022 by bellyoflead
This situation might relate to the motherboard, since Dell likely designed it or had it developed, allowing them to choose any specifications they prefer. The CPU only officially supports DDR4-3200 in Gear 2 mode, where the IMC operates at half the RAM speed. Can you adjust the memory to Gear 2? Testing that would help determine if the problem lies with the CPU or another component, as the CPU should be confirmed compatible with that setting.