We recommend to use Intel® B75 SATA ports (SATA2_1, SATA2_2, SATA2_3, SATA2_4, SATA2_5 and SATA3_0) for your bootable devices. This will minimum your boot time and get the best performance. But if you still want to boot from the ASMedia SATA3 controller, you can still enable this in the
UEFI BIOS.
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