I am running a 2990wx threadripper, gigabyte aorus xtreme x399, 2 sets of G.SKILL TridentZ RGB Series 64GB (4 x 16GB) 288-Pin DDR4 SDRAM DDR4 3200.
I was running a genomics workload and getting some bizarre results, and also compression was failing occassionally. I decided to run memtest86 and found hundreds of errors.
Seems like I have to change a few ram modules, but before I do that, I wanted to see if anyone has any suggestions that I might try before I full on swap it out. I thought someone here might have some experience getting 128GB of stable ram on this build.
Old ass CPU. Not like you can buy anything new. Have you cranked the voltage and retested ? Just reseat the memory. Then retest. 2990wx. Maybe 3200 is too fast. Slow the ram tighten the timings if possible.
I did a reseat and retest of everything. So far I have split the ram in half and run memtest on each half. 4 sticks give no errors and the other half give like a thousand. Maybe this is clear cut example of screwed up ram module?
I’m not surprised that one kit is giving you troubles. If I were you I wouldn’t waste time screwing around with voltages and stuff, but I’d just sent it back.
I got two bad kits of G.Skill Trindet Z RGB from Amazon. The second replacement came from G.Skill and so far it seems to be stable and working decently (Just a 8GBx2 3600MHz CL18 kit, nothing too fancy).
So, I split the kit in half, and 4 modules gave me a thousand errors, and the other four gave me 1 error. I ran memtest86 again and it gave me zero errors.
So it looks like it’s an issue with one of these four. The question now before I go any further is: Will it be ok to just buy another kit of four? Or if I isolate the modules down to one or two bad modules can I just buy a kit of 2?
Quad channel kits are validated with 4 modules in mind so trying to narrow it down to one or two defective DIMMs and getting new ones might lead to new issues. If you still have time to return them I’d suggest you to do so with the whole kit. If not the G.Skill customer support is efficient enough at sending new kits and will adivise you to send the whole kit instead of just the defective sticks.
Ok makes sense. These have been running in a scientific computing workstation for a while now so I imagine that I can’t just RMA them. Sounds like I ought to just buy a whole new kit.
I had basically the same issue with a 1950X back in the day. Narrowed it down to 1 stick of the 4 I was running with Memtest and returned that kit of 2 DIMMS. Got the new ones, tested them before permanently installing and everything was good to go from then on.
Memory intensive apps can cause errors and crashes that games and internet browsing never will.
Good luck!
Wait, you are running 2 sets of 4 as one 8 stick set?
Since you have figured out which set itnis that is one thing, but in general putting 2 separate kits together can cause new and interesting problems and kits are only verified as the kit they are sold in.
So an 8 stick kit should work and a 4 stick should work but 2 4 stick kits might not work together like expected.
Edit: I see now you did say this in the first post, I missed it.
Yes, I think this was a stupid mistake on my end. It did last a while though. I may have just burnt it out from consistently running scientific computing jobs at full memory usage though.
If these end up being compatible with the older generation threadripper, then i’ll probably get the G-SKILL-Trident-PC4-28800-3600MHz-F4-3600C18Q-128GTZN kit