I have half of my RAM available for use.
I have half of my RAM available for use.
Hello everyone. Apologies for the unclear writing, but I’m facing some issues lately. Let me outline my setup first: GTX 1080 EVGA SC, Ryzen 5 2600, MDS B450M pro-m2 MAX board, XPG Gammix D10 DDR4 at 3200MHz (2x8GB), 2667Mhz RAM, SSD 128GB, HDD 1TB, HEXA+ 500W power supply. My problem is that only half of my RAM appears in the BIOS (in Windows it shows only 16GB usable out of 32GB). Both modules function properly—I even have a second set of RAM sticks. In CPU-Z it displays dual channels and both sticks are visible. The weird part is that sometimes, after reseating or swapping RAM multiple times (about 25 times), the system shows 16GB available and works fine, but then anything like connecting the SSD or making changes causes everything to fail and reset. I can’t enable XMP profiles either—they cause the PC to restart twice and reset the CMOS every time after two failed boots. The most puzzling thing is that I can’t even access BIOS settings; each change leads to instability, repeated restarts, and a reset of the CMOS. Also, when the PC powers on after a RAM swap, the EZDebug LED lights up, followed by DRAM status, then it restarts twice before turning back on. Sometimes only the CPU light appears, followed by a restart and then it powers on normally. Occasionally, just the CPU light flashes, and the system restarts without any visual indicators.
What should I try next? I’m on a tight budget and can’t afford another Ryzen processor to test. Thanks in advance.
If you can swap the motherboard and avoid an MSI setup, that would be the key suggestion. Before trying more options, consider removing any MSI software or manufacturer control tools. Perform a RAM check using memtest64 for at least four hours to detect errors. Based on what you mentioned, it seems the problem could be related to RAM or the motherboard itself, or both together. The CPU issue is unlikely. Replacing the PSU should be done soon—poor quality units pose safety risks and may cause system problems.
Hello, thank you for your message. Unfortunately, I can't return the motherboard. It seems I purchased new RAM and a new motherboard, but each one doesn't support 16Gigabytes. I've tried different motherboards and RAM kits, and I haven't installed any software. I also performed multiple Windows installations. After about ten changes of RAM, some units started working, but the issue persists. When I connect one kit, it fails to boot. I swap to another, and sometimes it works. My BIOS is unstable too—PC won't post, can't change voltage, and even adjusting the MHz doesn't help.
It's odd I'm in agreement, but it still feels like a memory or hardware problem. You might want to try memtest64 first—it should reveal any errors.