- Joined
- Apr 13, 2012
- Messages
- 222
- Motherboard
- Asus WS X299 Sage/10g
- CPU
- i9-7940X
- Graphics
- Vega 64
- Mac
- Mobile Phone
Well, I guessed out that MemTest was the MemTest86 tool before I saw your post here. I ended up running it from a USB stick yesterday and it finished all 4 passes with 0 errors. It took more than 8 hours. I assume that is the same test that would run from the open core folder you sent me, right?No not a motherboard feature, but a tool to help diagnose memory problems. See https://www.memtest86.com
I attached a version you can load directly from Opencore.
Unzip and move the whole folder under EFI/OC/Tools. Then create an item in your config.plist under Root/Misc/Tools as per the screenshot.
When you are at Opencore picker, pressing spacebar will show auxiliary boot options where you can select memtest. Just let memtest run on default settings. IIRC it will run four full rounds of tests on default which will take a lot of time so maybe you can let it run during the night for example. If it found any errors, either you need to relax your memory settings or remove half of your memory sticks and then run the test again. Then, for example if you remove 2 out of 4 RAM sticks and memtest no longer finds any errors are you can remove the remaining 2 sticks and reinstall 1 of the sticks you removed in the first place and test with just that to narrow down. It may be you have to test each RAM stick one at a time.View attachment 479669
So no memory errors, so I'm guessing that that might rule out memory as being the source of my reboots, right? If so, is there anywhere else to look to try to diagnose why MacOS is unstable this way?