Sounds like its the A slots that are broken onyour motherboard then and not the RAM that is faulty?
-DDR5 under beta and still not good atm .
-PCIE 5.0 GPU still not out yet .
-CPU facing issue regarding gaming performance and 8p-8e core still under beta and for me 12900k is just an demo for 13900k and 14900k for example.
-Motherboard are facing high demand than supply shortage in market isn't big deal to upgrade atm .
Hmm, so new RAM sticks fixed your problem?
I'm having the same issue with slots A1 or A2 in use --> barely boots win11 the first time, and thereafter won't even boot to Windows. This is with either XMP or XMP turned off.
The RAM I have is a 2x16GB (32GB total) Corsair Dominator DDR5 5200 (CMT32GX5M2B5200C38).
Corsair support either wants me to run 8 billion memtests to help my any farther. On Reddit, their support has claimed that the issue lies with the CPU (or CPU seating or CPU cooler pressure), or is a problem with the motherboard.
Memtest passes fine when I use any combo of the B slots (using both B1 and B2, using either one individually with one stick of the RAM). Memtest can't even finish if I put a stick in either A1 or A2. It has numerous errors as well when using these slots. It seems doubtful that it is a problem with the RAM itself. XMP runs fine while using slots B1 and B2.
Anyone have ideas?
I have checked the CPU and CPU socket for any physical defects - there are none visible. When checking on this, I reseated the CPU and re-attached my Arctic Freeze 240 cooler (the top part - I have not tried adjusting the backplate screws, because who wants to remove their entire motherboard for a slim chance of rectifying the problem?). BTW, I am using Arctic's LGA1700 backplate kit.
The only simple recourse left here to try, is to reapply the cooler again using a new tube of thermal paste (already have it in hand). I didn't have much paste when applying the cooler the first/second time, so its a bit sparse. Attaching the cooler again with more paste is the only thing I can think of to try.
Thanks for any help you all can provide.
For now, my problem seems to be solved. The new modules are working when using the A sockets. However, I still feel strange, because I do not understand why the 2 previous kits would not work in the A sockets. Running them in the B sockets was ok. So, I think it wasn't an issue with the memory.
In your case, Corsair support claims yours is probably an issue with the board or the CPU? That's interesting, because finally I had completely dismantled my system, CPU, AIO, retention kit, etc. to return it for RMA. Instead, vendor suggested me to try once more another memory kit. Maybe in the process of reinstalling the mobo, I somehow fixed the problem? When I re-installed the CPU and AIO, I found some extremally small scratches around the 4 holes for the stands for the AIO. If you look carefully, it seems there are printed circuit lines in the area around the holes for cooler that seem (?) to provide current to the DIMMs. It's a bit far fetched, but to be sure I put thin paper washer between the metal stands and the PCB to prevent contact. As I said, it's far fetched, that this was the reason for my previous problem. I still believe it's more likely a matter of still required fine tuning the BIOS so that at any rate DDR5 modules are properly recognized. For me, this is a somehow bizarre experience. I have been building systems for almost 30 years, but I have never been running into such an issue.
Yet, after things are now working, I am very satisfied. The Z690 chipset with a 12th generation i5 and DDR5, are delivering outstanding performance.
I updated to bios 802 build last night, moved a RAM stick from B1 to A2, and the system wouldn't even post (RAM error light was orange, posting wouldn't move past that even with multiple off/on resets of the system). With the new bios B1+B2 configuration worked at 5200mhz XMP 1 just as before.