Hi, I ran the dump file through the debugger and got the following information: https://pste.eu/p/yuww.html
File: 090818-11437-01.dmp (Sep 8 2018 - 10:59:42)
BugCheck: [SYSTEM_SERVICE_EXCEPTION (3B)
Probably caused by: memory_corruption (Process: byond.exe
Uptime: 1 Day(s), 0 Hour(s), 05 Min(s), and 48 Sec(s)
BIOS information was not included in the minidump, this can sometimes mean you are using an older BIOS. See if there are any updates. Note:
Updating your BIOS can be risky. Never try it when you might lose power (lightning storms, recent power outages, etc).
When you say you ran a memtest, did you run memtest86 for 8 passes on each individual RAM stick? Or did you use that Windows Memory Diagnostic test? You said you did both sticks, did you do them one at a time? More info would be good.