I used the rifw=alfie with a 1700x on an MSI X370 Gaming Plus BIOS 7A33v5H with no freezing for 1 week. Computer was rock solid on older BIOS (7A33v55) for a year+ until BIOS update to latest.
I'm using low power idle option with kernel 4.14.111 opensuse 15.0.
PC had kernel: [Firmware Bug]: ACPI MWAIT C-state 0x0 not supported by HW (0x0) - After BIOS update and gone now after patch in Comment 580 with rifw=alfie boot option.
I used the rifw=alfie with a 1700x on an MSI X370 Gaming Plus BIOS 7A33v5H with no freezing for 1 week. Computer was rock solid on older BIOS (7A33v55) for a year+ until BIOS update to latest.
I'm using low power idle option with kernel 4.14.111 opensuse 15.0.
PC had kernel: [Firmware Bug]: ACPI MWAIT C-state 0x0 not supported by HW (0x0) - After BIOS update and gone now after patch in Comment 580 with rifw=alfie boot option.