Problem with Athlon xp and motherboard 200

[TeamLegend]

i just bought this from frys and the problem is that after replacing with my old motherboard and cpu my computer keeps resarting even though i choose to shut down from windows xp. ihave win xp professional.

can you help me on the what the problem can be.
thanks

 

[RemyCanad]

First check to make sure your power management functions are turned on in your BIOS.

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