On Tue, Nov 29, 2022 at 09:40:14AM -0500, Greg Troxel wrote: > > I am pretty sure the hardware is OK, but I can't really run memtest86 as > it is a VPS.
Memtester is userland, should be on most distributions: apt install memtester You can give it parameter of how much memory you have free, and it'll allocate and test that.