We have a Dell PowerEdge R820 running VMware ESXi that has had multiple CPU errors over the past two months. It was originally having an IERR on CPU1 and now is showing CPU Check errors for CPU3. I swapped out CPU3 --> CPU2 and CPU1 --> CPU4 to see if the errors would follow the processors around. After swapping, the server was on for about 72 hours before I performed another DSET and there were no more hardware errors. I want to run a stress test on the CPUs and memory for about 24 hours to verify it will be able to handle the load when we go into production. It's possible the CPUs were somehow shifted during shipping (soon before we began receiving the first errors).
The problem is that I don't know of any stress test tools for my particular setup. I tried using breakin but it won't boot up into it correctly. (Gets hung up on 'loading sb_edac'). Is there a tool that you can recommend I use to stress test an R820 (Intel Xeon e5-4600) running VMware ESXi?