S.C. Code Ann. § 59-127-430

Except to the extent other monies are restricted inconsistent with these provisions, the trustees are empowered to deposit, in the Debt Service Fund, before the issuance of any bonds, monies derived from other sources, including funds raised by the athletic department of the university. They also are empowered throughout the life of the bonds to make payments from these other sources to the fund, and in calculating the amount or rate of the admission fee or the special student fee, or both, for any year, they may take into account all monies then actually paid to the fund from the other sources which then are available to meet the payment of the principal and interest on the bonds for the year.