AHSMB

A rather late update, but the system's been running great after dropping the RAM frequency to 2133 in BIOS. Sucks that I'm not getting the advertised 4800, but no big deal. Appreciate the quick help and advice.

I woke up this morning to the PASS message onscreen. But you're right, 192GB finished a lot faster than I thought it would. Or maybe I just misinterpreted things and needed to let the thing run a little longer? Server's still going strong and hasn't frozen yet as of this message.

So bit of an update: Did a memtest on the 4 sticks overnight (with underclocked settings at 2133MHz with 1.2V VDD/VDDQ changes) and no errors or freezing. It was only for about 10 hours, though. I decided to go ahead and boot up TrueNAS Scale (sorry, I know, this is an Unraid forum, I swear I'll look at it for future builds!), and left my computer transferring files from my old NAS for about 8 hours and a half. Just got home from work and so far, no freezes. I don't think I'm in the clear, so I'm just gonna wait it out and see what happens in the next 24 hours. I don't think I lose much leaving these sticks at 2133MHz, so if it works, that's more than enough for me. For now, thank you guys for the prompt replies and help. I'll report back if I'm out of the woods or still seeing issues.

Yeah, I can try running memtest again. Honestly, can't remember what's what anymore with the memtests I ran a few days back. Edit: Forgot to answer the brand question, but I'm not quite sure. MemTest itself is reporting the sticks as unknown, so yeah.

I did one full pass on a single stick, and then two sticks for one night, but I can try again. I've also tried a full pass on all 4 sticks at some point, and that seemed okay. They're ECC sticks. For what it's worth, I got the sticks from a merchant called Mem-Store on eBay, and they seemed pretty reputable, or so I'm led to believe. I checked over the syslog and they usually don't print anything prior to the system getting hard locked/frozen until I have to hard reset it. I've had the log print realtime as well, and I usually never see anything get printed prior on my monitor. I've had the system similarly lock up during MemTest a couple of times. I'll avoid linking the item page here, but these are the specs: 48GB 1x48GB DDR5-4800MHz PC5-38400 288pin 1.1V 2Rx8 ECC UDIMM RAM Memory Upgrade When I tried only two of the sticks, I think the system didn't have any issues, but maybe I didn't run it long enough for the issues to surface. Right now, I have the RAM underclocked to 2133MHz and set the VDD/VDDQ voltages to 1.2V (the latter being a total shot in the dark). Currently transferring files from my old NAS to this new build, so I'll know when the thing freezes up again, if isn't stable. Another note, I'm outside of the return window, so I'm desperately trying to make these 4 sticks work, otherwise, they'll just be wasted PCB bricks and I'll be out of a pretty penny, to say the least. Definitely should've done my research a bit more on DDR5 but didn't think to since my old build with DDR4 was just a smooth process from beginning to end. Shucks.

Feels like this is the only place talking about this motherboard, but does anyone have any tips to get 4x48GB sticks stable on this motherboard? I'm running an i5-14600K, and the motherboard underclocks to 4200MHz from 4800MHz, which in my usage so far has been unstable with random freezes. I dropped it down to 3000MHz and I still experienced a freeze and am trying 2400MHz. Curious if I should be doing anything else like messing with voltages to get this working. The sticks I got are from a generic brand on a eBay, so maybe that has something to do with it, but I think they ran fine when I used only two sticks.