I erase my grapic equalizer - Sony Walkman NWZ-B142 MP3 Player

Is the switch still there? If the switch is still there you might be able to activate it with a pencil eraser or something like that.. If you have lost the switch then you will not be able to equalizer your batteries

Do a google search by the make and model number of the motherboard or the pc make and model number.

No, you motherboard doesn't have a separate video slot in which to plug another video card.

1-check your input and output cable.
2-check all your control volume and slider in proper setting.
3-confirm that input sound source is working properly.(try it without the equalizer).
4-if the cables are o.k and sound source is o.k and you still get no output you must pass it to service center.

you can download from the sahara website 

go to support and download your own model driver 

THE UNIT YOU ARE USE HAVE SPEAKER IN AND OUT WIRES LOOK AT THE INSTRUCTION AT THE BACK OF THE EQ AND DECIDE HOW YOU WANNA USE THE EQ

The following is from the Razr V3 manual: Master Clear - Clear all user settings and entries except SIM card information, erase all downloaded pictures and sound files, reset all options except unlock code, security code, and lifetime timer. Caution: Master clear erases all user-entered information (including phonebook and datebook entries) and user-downloaded content (including photos and sounds) stored in your phone's memory. After you erase the information you cannot recover it.

Hope this answers your question.

Onboard graphic will be disabled automatically if there is a graphic card in AGP slot.

your grapics card is 128mb. and the most new game wont a 256mb grapics card and an avaible 1gb ram or more and your card is an onbord on you can't replace it.