Si acabaste de formatiar, seguramente te faltan mas cosas por hacer funcionar.
Te recomiendo q descarges todos estos controladores para tu pc y los instales. Download HP Compaq DX2400 Intel Chipset Utility for Win XP Description: Intel Chipset Utility 8.4.0.1016 Rev. A For Win XP
Size: 1.9 MB
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Size:18.7 MB
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Download: sp41881.exe