can you fit a graphics card in this?

This desktop uses integrated Intel HD Graphics and does not have information indicating expansion slots for an additional graphics card.

What is the warranty for above? Warranty by Newegg or Price Right?

Hello, The warranty for this item is 90 days from pricerightcomputers.

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Lenovo ThinkCentre M90p(3853) USFF Desktop Intel Core i5-650 3.20GHz Dual Core 8GB DDR3 SDRAM 750GB HD DVD-RW Microsoft Windows 7 Professional 64-bit