Data Centers in LEED v3 - exceptional calculation method?

I have a relatively large data center (200kw connected load) in a relatively larger building (250k sf) so that the data center is not the major program space, but is a relatively large minority of the energy use. I cannot find any guidance online or in the LEED CIR's regarding how to treat a data center for LEED v3. However, I found this in LEED v4 reference guide regarding data centers: "The guidance in this section is geared toward dedicated data centers and is not applicable to server closets or other small computer rooms. Mixed-use data centers, in which the data center takes up only a portion of the building space, may use this information as the basis of an exceptional calculation method. The power requirements and energy use of the IT equipment in a data center typically dwarf the energy use of the cooling system and must be considered for optimizing energy use. The energy consumption of a data center’s cooling system typically ranges from 15% to 25% of its total energy use, whereas in other commercial buildings, the HVAC energy consumption approaches 50% of the total energy consumption.... and so on. Anyways, what are the opinions here of how to treat a data center in LEED v3? My opinion is I should be able to use LEED v4 guidelines to show an exceptional calculation for my LEED v3 project. And if this is already covered somewhere else, please provide the link, thanks