Recent content by outlook247

@haze295 I just upgraded from Mavericks (10.9.5) to Sierra (10.12.5), my system will boot with 12,2 iMac SMBIOS and 14,2 iMac board-id (from post #1) but I get a black screen if they're both 12,2 iMac. In post #2, you stated your system booted fine in 10.12.2 when both smbios and board-id are...