Ive been reformated my computer,thees no sounds from my speakers

Go to start, and hit Control Panel.

There should be an option that looks like "Sound Settings" or something of the sort.

In this window, verify that your default sound device is your speakers for your computer.

if your computer came with a motherboard disc the sound drivers could be on it
click start control panel administrive tools computer management device manager scroll to sound,video and game controllers you might see a yellow question mark? Right click to reinstall drivers or uninstall
click start control panel sounds and audio,volume,advanced,speakers make sure you have selected the
(((appropriate speakers))) also audio you will find 3 drop down lists make sure you have the correct settings there
also
click start control panel sounds and audio devices you can adjust the volume there also select speaker volume you can change your settings there you can also tick in the box place icon in taskbar
if his does not fix the problem

have you tried this control panel sounds and audio,volume,advanced,speakers select the appropriate speakers from the drop down list or navigate to the device manager scroll to system devices + to expand,system speaker right click properties then select use this device (enable) also you might check
the speakers plug/outlet is usually at the back of the computer 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
try cleaning your computer of dust using a 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
make sure you have an earth ******** before touching any parts inside your computer
hope this helps

go to control panel and open sound and audio codec in that go to audio change sound recording

it must be reversed polarity in coil voices of speakers check + - wires from amplifiers fit on coil voices of speakers try to get each speaker to 8 ohms wiring in serial the two coil voices n'd put in paralel both speakers in bridge mode output from amplifier to get most stable power ,

There are leads that need to be connected to your computer for the Front, Rear, and Subwoofer speakers Not all motherboards have all of these connections Your Logitech manual shows how to connect the speakers correctly if you do not have all of the connections on your motherboard

Speakers don't have drivers.
You need drivers for the audio/sound adapter in your computer that the speakers plug into.

If the speakers plug into an add-on card, open the case and note the make and model of the card. Go to the manufacturer's website, download and install the audio driver.

If the speakers plug into the motherboard (e.g. the plug is situated near the computer's USB, keyboard and mouse plugs) then you need to look up the system or motherboard at the manufacturer's website and get the driver from them.

I hope this helps.

HAd same prob you have to install the sound driver got to the computer website dell.com if it a dell and type in brand and go from there

plug the speaker cord into the LIME GREEN port on your computer.

Click on the speaker icon at thee bottom of the display to make sure you are not MUTED.

No, i don't think so, but probably you audio was disconnected
Check the sound properties on control panel.
Check back connections, the power of your speakers. (bad power supply - replace)
Check your speakers on another computer

What do you mean that you had the computer's memory cleared? Was it reformated?