Problem Installing....

Trying to install routeros 5.25 on new board Asus P8B75-V with processor ntel Celeron G550 and get error that harddrive not found…
I use sata harddrive and try to use cf drive as well… same error…
I have 3 same computers that work on my network with same configuration… but not this one… and I cant figured out why?
any kind of help?
Thank you…