How do I turn the sound on

depending on the auxiliary speakers you have, there needs to be a power source (either batteries, a power supply, or an ac cord); and the power needs to be turned on. Symptom sounds like you don't have the external power connected or turned on.

you need to set up the individual volume levels for each speaker.
do a sound test tone which will check for a signal from each speaker.
if you hear the speakers at different volumes you know you need to adjust the ones that are too weak. hope this helps

Laptop or Desktop ?
Try swapping the speakers around to see if the problem is in the speaker itself.

Volume problems on computers often happen for a variety of reasons.

Volume troubleshooting, however, is one of the easiest problems to troubleshoot because there are only a few things that usually cause the problems.

Usually the problem isn't even an error but just merely an adjustment that needs to be made.

Test your speakers.

This is the first thing you should check if you can't hear anything coming out of your computer. First try turning up the volume know and make sure you are in fact turning the volume knob and not a tone or balance knob.

Make sure the speakers are completely plugged in to the wall and the computer. Test with another set of speakers or headphones after you have done this.

Check the computer volume level.

On the taskbar is a volume icon, which usually looks like a small speaker.

Click on the icon and turn the volume up.

Make sure it has not been muted.

Double clicking on the icon will bring up a panel of several volume controls.

Try turning up the volume on each slider.

Go to Control Panel and choose "Sounds and Audio Devices."

Under the volume tab, click speaker volume and turn up the level if needed.

Turn up the application volume. Most programs that use sound have an additional volume control just for that program.

Find the volume control and turn it up.

Usually it is located in the lower right or left corner on the program, but you may have to search for it.

Troubleshoot the sound card.

Download the latest drivers from your sound card manufacturer's website.

Go to Control panel > System > Hardware > Device Manager. Click on "Sound, Video and Game Controllers."

Click on your sound card, select the driver tab and then click on "Update Driver."

Point to the file where you saved the latest drivers from the website.

After this, restart your computer.

The speaker plug/outlets is usually at the back of the computer or if its a laptop on the side

you will have to open up the computer to check the lead attached to the rear of the input plug make

sure the connection is good with no dust as dust causes static electricity

clean your computer of dust using a can of compressed air or fine air blower from a compressor making VERY sure that there is

no MOISTURE in the air line specifically around the sound card and the CPU central processing unit

dust causes static to build up in a computer

If this doesn't solve your problem, try reseating the sound card into your computer.

Hope this helps

maybe they have the volume muted. Check to make sure the volume is not muted and that the speakers are plugged into the light green port in the back of the computer.

Make sure the volume on the physical speakers are turned on and turned up. And make sure the volume in the Audio Sound Properties it turned up and not muted.

If you see the speaker megaphone at the bottom right near the time click on it to adjust the properties.

You can click Start/Control Panel and look for Sound or Audio properties

If you have an extra headset around, plug it into the same place the speakers are plugged into, if it works, your speakers are bad (or check to make sure the power light is on on them and that their volume knob is turned up).
If you still do not get sound, click on your little volume/speaker icon by your clock, then click 'mixer' at the bottom of it (Windows 7 hopefully?). Make sure the different volume controls are turned up because sometimes one low one will affect the entire system.
(If Windows XP, right-click the speaker, then 'Open Volume Control'. Adjust until you hear sound.)

This article contains tips for resolving sound related issues in Windows XP.
No Sound From all speakers

• Check that the speakers are powered on.
• Check that the speakers are connected to the correct ports on the PC. This is particularly important If the customer has both integrated sound and a sound card.
• If the speakers have a volume control button - ensure that this is turned up.
• Check that the Windows Audio service is running. If this is not running then many of the subsequent troubleshooting steps will not work. Go to Start->Run and type services.msc. Double cliick on Windows Audio. Select Start if possible and check that the Startup Type is Automatic. Click OK.
• If the speakers are digital speakers then try forcing the sound card to use digital. Go to Start->Control Panel->Sound and Audio Devices.. On the Volume tab, click the Advanced button in the Device Volume section. In the Volume Control window, below the Play Control Volume slider, click Advanced. If this does not show select Advanced Controls from the Options menu. Select Digital Output Only
• If possible try an external audio source like a Walkman, CD, or MP3 player (connect the speakers to the headphone jack)
• Check that the volume control in Windows isn't muted or turned too low. See the screen shots below. Go to Start->Control Panel and double click on Sounds and Audio Devices.

The volume may be muted. In Windows, look at the volume
control (speaker) icon on the taskbar. If it is crossed-out, click on
the icon and deselect the Mute option.
• The speakers may be turned off. Press Fn-F8 to turn the speakers
on (this hot key also turns the speakers off).
• The volume level may be too low. In Windows, look at the volume
control icon on the taskbar.
Fn-? Volume up Increases the sound volume. Fn-? Volume down Decreases the sound volume.

If this helps u let me know
regards

First make sure your sound cards are working properly. 1) Check the master volume of your PC. Go to start menu, control panel, sounds speech and audio devices, sounds and audio devices - i) In volume tab click the speaker volume and check whether all the left, right, etc.. volumes are in medium or high. ii) In audio tab click the volume tab of sound playback and make sure that the master volume is not in mute and all the volumes are either in medium level or at 100%. After making these changes try playing any music. Even if the problem persists go and get your sound card checked in an authorised service centre.

Thanks & Regards,
Shiva

I foudn this in anther forum:
I have an ASUS motherboard P5E3 Premium. The audio that came with it was the Sound Max audio. I also noticed abnormal sounds coming from the speakers. They included sounds during hard drive activity and also with mouse movement. They were not loud but noticable. I searched all over the web but didn't find the answer. I stumbled across the fix myself. I also have vista-64. In the sound control panel > speaker properties > levels... there is a pc beep slide bar. I noticed that if it is disabled then the abnormal sound went away completely. Problem solved. Hope this helps.

Ok try turning the sound control up either on your speakers if it has volume control or go to options on the game menu and then go to sound option and turn it up, also if you are talking about that on your speaker volume control is up but sound is low try also bottom right of the screen if using windows find the little picture of a speaker, place mouse arrow over it right click and increase volume on system. Hope this helps you.