|The mic cord (or the headphones cord, or any cord hooked up to the sound ports) could be picking up electronic or electric noise from anything close to the cord. The thinner cord, the more likely the wires inside the cord are not as well shielded or are not shielded at all, the more likely it will pick up noise. Keep the cord as far away as you can from anything that might produce electronic or electric noise - the noise is proportional to the square of the distance from the source - e.g. twice as far away, 1/4 the noise. E.g. Keep the case of a desktop computer closed - the metal blocks electronic and electric noise. Keep the cord away from AC cords, AC to DC adapter cords, monitors, fans, flouresent or halogen lights, motors, transformers (e.g. "wall wart" AC top CD adapters), phones, etc., etc. |
If that doesn't help you may need to get a mic or a headset with (a) better shielded cord(s). Thicker is usually = better regarding that. If you can see thru the plastic of the cord, a cord with braided wire surrounding the wires inside is much better than when you can see the individual wires inside the cord.
NOTE that if you have a telephone cord connected to the computer (to a dial-up modem) or to the high speed modem, or to a combo router/modem, or if you have one to a phone near the computer, or to a fax machine near the computer, the cheap flat cords most people use are not shielded at all and are well known to be likely to pick up noise. Any cheap flat phone cord on the same phone line anywhere in your residence can pick up noise.
Another thing you could try is go into your sound mixer settings and see if the mic input can be boosted - if it can you could try boosting it and turning down the mic volume, or switch off the boost if it's on, turn up the mic volume.
RIGHT click on the speaker icon in the taskbar lower right, choose Open Volume Control. Click on Options - Properties - sometimes you can set whether the mic is boosted or not there.
NOTE that the mic volume should always be muted in the Windows mixer settings when you're not using the mic - it is by default. It is un-muted automatically when you use a program that can use a mic, muted again when you exit the program.
If you un-mute the mic volume in the Windows mixer settings, the mic is picking up sound all the time. If you have more one mic, e.g. some some web cams have a mic built in, if that mic volume is un-muted there, either mic may pick up sound all the time, whichever is the default mic at the time.
"I am using a Soundmax on-board audio
It is NOT A CARD if it's built in !
The term CARD is frequently mis-used !
A CARD installs in a slot in the mboard and is removable.
A USB connected sound adapter isn't a CARD either.
How could you possibly break a jack built into the mboard? Do you know the difference between a plug and a jack? A plug is the male connector part of the connection, e.g. the 1/8" shaft connector on the end of a cord for computer speakers, a mic, or headphones - the jack is what's built into the mboard, or on the front of the case for headphones (or speakers) or a mic - the female part of the connection - you plug the male plug into the female jack's 1/8" hole. For a sound extension cord, one end has a plug, the other end has an inline jack.
Did you break off a plug in the rear jack and your brother broke off a plug in the front case jack?
Windows 95 and up supports you installing the drivers, software for more than one sound adapter. You DO NOT have to disable the onboard sound in the bios when you install a sound card in a slot (unless you NEVER want to use the onboard sound), unless you have the rare case where the card you're using uses a similar chipset for the onboard sound made by the same manufacturer, in which case you MIGHT have a resources used conflict problem, but I doubt that.
However, Windows 95 and up can only use one sound adapter at time. If you have installed the drivers, software, for more than one sound adapter, or if Windows has done that for one or more sound adapters automatically, the adapter you or Windows installed the software for last becomes the default sound adapter that Windows uses. You usually DO NOT have to remove the sound card or remove it's drivers, software in order to use the onboard sound, and visa versa. If the drivers, software for the onboard sound and the sound card have been installed, you simply go to Control Panel - Classic View - Sounds and Audio Devices - Audio and change which sound adapter is the default one, if you don't want to use the existing default one.
If you DO get a sound card, since you MAY have damaged the onboard sound circuits, it MAY be a good idea to disable the onboard sound in the bios Setup, but that should not be necessary if the default Windows sound is a sound card (in a mboard slot)