I bought a 32 GB (2x16 GB) KLEVV FIT V DDR5-5600 CL30 kit with SK Hynix A-die chips on July 18 and installed it on the 24th. It worked normally until today, when I was updating a few games with another program open and Windows crashed with a message saying the computer needed to restart. I ran Windows Memory Diagnostic afterward, and it reported memory problems. However, MemTest86 has completed several passes with zero errors, and an OCCT memory test also passed for an hour. I'm wondering whether the Windows result was just a fluke or whether I should return the kit. The retailer only offers a refund rather than a replacement, and the current price is about $50 higher than what I paid. The kit does have a lifetime warranty, but I'm still within the return window. What would you do?
3 Answers
Run Windows Memory Diagnostic one more time to see whether the result is repeatable. Also test with XMP or EXPO disabled, since an overclocked memory profile can expose instability even when the RAM passes a basic test. If the system is stable at default settings but not with the profile enabled, the issue may be the memory controller or timings rather than a defective stick.
Try a heavier stability test such as y-cruncher VT3 or Prime95’s maximum heat and power test. Some systems pass MemTest86 but still fail under a long workload because the memory controller becomes unstable with XMP or EXPO enabled. If errors appear, lower the memory speed or disable the profile and test again.
That’s a good sign, but longer tests can still be useful if you want more confidence before the return window closes.
A clean MemTest86 run across multiple passes, along with a clean OCCT test, is reassuring. I’d keep using the kit while the return period is still open and monitor for more crashes. If the Windows test fails again or you get additional blue screens, return it or use the manufacturer’s lifetime warranty rather than ignoring the pattern.
I ran an OCCT test for about an hour and it completed without errors, so I’m going to keep testing normally for now.