expansion card in poweredge T20

Hi

In our university department we are planning to get a few poweredge T20. Since we need basic openGL, I would like to add some basic gfx card onto pcie. On our existing T110-II we have successfully done it with some radeon x1300(low power gfx).

My question: In table 13, of  T20 server technical guide.pdf states in page 17 - that maximum wattage of PCIe expansion is 75 W.

In page 52, of T20-owners-manual.pdf the power consumption of PCIe expansion cards is less than 25 W,

Which of the two statements is correct?

many thanks

I have the PDF of the tech manuals: at : https://copy.com/4rSect2INvLK