Shut down the PC, open the cover and look at the top of capacitors, does any look bulged ?
While open, power it on and run latency histogram for about 10 minutes, touch the CPU cooler, beware it can be very hot. Is it very hot?
While open, power off again, remove one of the memory modules, boot and test. Test both modules, granted there are two modules in it.
If there are two modules with no change in results and you do not end up with second degree burns on fingers/hand, then power supply or memory controller or failing hard drive, in that order.
No dodgy caps inside.
No overheating during latency histogram.
Ran automated latency test for a couple hours last night with no hiccups and really good latency.
Only one memory module and no spare laying around, so cant test that.
HD is an SSD that was newly installed when I bought it last year.
Power supply is the OEM HP, nothing fishy about it.
Time to break out the other SFF PC and see if the realtek NIC problems have been sorted since I tried it early this year.
