Ohio Rev. Code Ann. § 1309.103
(A) As used in this section:
(B) A security interest in goods is a purchase-money security interest:
(C) A security interest in software is a purchase-money security interest to the extent that the security interest also secures a purchase-money obligation incurred with respect to goods in which the secured party holds or held a purchase-money security interest if:
(E) In a transaction other than a consumer-goods transaction, if the extent to which a security interest is a purchase-money security interest depends on the application of a payment to a particular obligation, the payment must be applied:
(3) In the absence of an agreement to a reasonable method and a timely manifestation of the obligor's intention, in the following order:
(F) In a transaction other than a consumer-goods transaction, a purchase-money security interest does not lose its status as a purchase-money security interest, even if: