Question New PC Troubleshooting - Memtest86 Errors/game crashes - root cause?

Oct 7, 2023
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Have recently built a new PC, however have had memory issue symptoms since the get go. Occasional BSODs, and app crashes. Mostly resolved except for persistent problem with every game crashing to desktop with no message - just freeezing then closed - after only a few minutes of play.

Specs:
- AMD Ryzen 5 7600x
- ASROCK B650M Pro RS WiFi
- Corsair Vengeance RGB 32GB (2x16) DDR5-6000
- Radeon RX 6800 XT 16GB Graphics Card
- Corsair RM750 W 80+ Gold PSU
- WD SN850X 1TB M.2
- Thermalright Peerless Assassin 120 SE Cooler
- NZXT H5 Flow RGB Case
- Windows 11

Have been down the rabbit hole of trying to identify and address the issue, including updating bios (1.26 to 1.28), drivers, windows, looking for and repairing corrupted files, which helped a bit with the original issues, but the game crashes persist. No issues when running user benchmark for e.g.

Where I've ended up is with running Memtest86, which repeatedly returns a small number of errors, particularly in test 9.
I have replaced the RAM twice, including changing the type from corsair vengeance ddr5 5600 to the rgb 6000 (both on QVL). The second set of 5600 was worse than the first, with errors in other tests too, but seems unlikely I'd get three kits of bad RAM in a row, unless someone knows something about amazon supply chains that I don't. Tried stickets individually and in different slots to no avail.

Most recent kit had one test 9 error on pass three on default settings.
Rose to a few dozen test 9 errors on each pass using XMP.
Default with just voltage increased a little resulted in several test 9 errors on the first pass.
And restoring default settings led to several test 9 errors again (much worse than initial run, suggesting the heat/strain on system from all the tests exacerbated the issue).
While there isn't a clear pattern in cpu core involved and temps remain in reasonable ranges, I'm starting to wonder if this is a CPU issue, or even motherboard issue, but have no idea what next steps I could possibly take to narrow down or fix (don't have another DDR5 accepting PC to test the RAM on and would rather avoid guessing and just replacing one or more other components). My google-fu is failing me a little on this front.

I am contemplating updating the BIOS to the beta 1.30 or flashing it back to 1.24 as I've seen some people comment this with certain boot issues. Beyond that is there anything I can do to narrow things down, or something I'm not interpretting correctly from the above evidence?

Any thoughts or advice would be appreciated.
 
Oct 6, 2023
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Do you have another motherboard available to test? Can you test using 1 stick only? Maybe isolate the bad one if there is one, or maybe there is a bad slot on the motherboard?
 
Oct 7, 2023
3
0
10
Do you have another motherboard available to test? Can you test using 1 stick only? Maybe isolate the bad one if there is one, or maybe there is a bad slot on the motherboard?
Have tried using individual sticks, across the different kits I've tried, and used them on different slots in case that was the issue, but still got memtest86 errors.

Unfortunately I don't have another motherboard available to test them on (other PC in the house has a different CPU socket and DDR4 RAM slots)
 
Oct 7, 2023
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Your ram is under warranty.
Why not contact Corsair for help with this issue?
After separately trying 3 different kits I'm thinking it's unlikely to be an issue with the RAM.
I can reach out, but suspect they won't be able to advise further tests to rule the RAM out as the issue without me physically sending them the hardware.
 
Oct 6, 2023
6
2
15
Have tried using individual sticks, across the different kits I've tried, and used them on different slots in case that was the issue, but still got memtest86 errors.

Unfortunately I don't have another motherboard available to test them on (other PC in the house has a different CPU socket and DDR4 RAM slots)
Would suggest trying a new motherboard. You've answered your own question with the RAM, I think.
 
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