You should have never installed an unsupported O.S. to that very new machine. In your instruction booklet of the mainboard you purchased. Check if it was made for XP(all editions) or not. Chances are, not.
My own machine of 2 years of age came, all pre-assembled, from Acer Canada. Vista was auto. pre-installed onto it's HDD. Went onto Acer.com's Support page for drivers and, possibly a newer Bios for it. I got two Bios upgrades ever since. A window was telling me the model type of such machine and what it can support as of Windows' Operating Systems. Saw a big, bad, red X where XP was written. Two green checks for both Vista and 7.
So, even for a value type of PC, XP is not an option, for this one. A mere Dual Core 2.5Ghz of a processor die of a model. Notifying you that if you do so, anyway, will probably damage its mainboard and the rest of the entire hardware within the case of that new generation of machines.
Conclusion, machines made from 2007 and up, no XP MCE 2005 and older.
Have a nice week everybody!