PowerEdge 650 hard drive limits.

Does anyone know if there is a way to get a PowerEdge 650 to recognize a 750 gig HD.

I found in the specs that it has a 240 gig limit. Is this total space or just per disk. In other words can I put 2 X 240 gig or would I have to put in 2x120 gig for 240.

Thanks for any information you can provide.