If you have compaq presario V3000 and installed XP on it, but when you plug in the headphone, both speaker and headphone produce sound, to solve this simply download this audio driver below and install it.
Hp 630 Laptop Drivers Free Download For Windows 7,Xp!
Model: HP Compaq 630 Series /(Energy Star)
Compatibility: Windows XP 32-bit, Windows XP 64-bit , Windows 7 32-bit, Windows 7 64-bit
The great thing about this model is HP release drivers for both windows XP and Windows 7, Windows Vista is not available but normally windows 7 drivers works with windows Vista. I rebuild the list by removing unwanted utilities and duplicate drivers with different version.
Install all 4 drivers, all support windows XP and Windows 7
Intel Chipset Installation Utility and
Version 184.108.40.2065 , 2.4 MB (xp,7) Download