IEI Integration ECW-281B-N270-WT v2.10 - Manual (Page 171)

ECW-281B-R21/N270 Embedded System
Page 155
Step 5: When the following window appears, press <S> to select “Specify Additional
Device”.
Step 6: In the following window, select a SATA controller mode used in the system. Then
press <Enter>. The user can now start using the SATA HDD.