@cmn699
I'm hoping you have a clue as to what is causing my build to auto reboot by itself. I've been following your
Intel 300 Series Chipset Motherboards guide to tweak my build. The
only item to date Ive tried to improve upon is the Integrated Intel HD 630 graphics. During initial Mojave install, I kept the default option in the BIOS peripherals "Initial Display Output" as PCIe 1 Slot. Upon successful install, the Mojave System Report showed the Graphics/Displays as "Intel UHD Graphics 630", with a Device ID of 0x1234 and Vendor ID as 0x5678. This option works on either HDMI port, but would only work on the port where the cable was inserted during boot, meaning, if I switched the cable to the other port after boot, the video output did not work, unless I rebooted whereby the new port would be recognized. To mimic your setup, I changed the Devices IntelGFX setting to 0x0 (blank), changed the BIOS setting to IGFX, then rebooted. When the system came up, I would only have video
if the HDMI cable was plugged into the 60 Hz (HDR) port. The video seems greatly improved with this setting. The problem which is baffling to me, if the system is left unattended for 15 minutes or so, the screen will go blank (no video source), then an auto reboot occurs w/o any user input. Ive looked at my System Preferences and turned off all Energy Saving options, screensavers, etc. Do you know why the reboot might be happening? Since then, Ive reverted back to the original 0x1234 settings. I've attached screen shots showing the Plist settings and System Reports. Hope you have a clue as to what is happening b/c I feel I'm not taking advantage of the full HD 630 graphics.
Thanks for any assistance!