I tested those two files on windows 7 last night... updated ok. boot into windows 7 without hitch. Below are my result
see attached img --> Image Folder -s21-windows7-test
anyrom_with_marvell_drivers_win7_ssd
asus_stockrom_0903_with_marvell_win7_ssd
asus_stockrom_0903_with_standard_ahci_win7_ssd
w10rom_with_marvell_drivers_win7_ssd
w10rom_with_standard_ahci_drivers_win7_ssd
will post windows 10 result later
see attached img --> Image Folder -s21-windows7-test
anyrom_with_marvell_drivers_win7_ssd
asus_stockrom_0903_with_marvell_win7_ssd
asus_stockrom_0903_with_standard_ahci_win7_ssd
w10rom_with_marvell_drivers_win7_ssd
w10rom_with_standard_ahci_drivers_win7_ssd
will post windows 10 result later




. Im on rs3, have tried rs5 but wont continue setup past logo unless you disable vt-d. Anyway i did the onboard marvell sata test. Below is the result. only tested the anyrom s21 not the win10r ver. im quite satisfied but wished i could run at least vmware 12 with vt-x 
