cannot play any sound on my pc

[strw]

this is my desktop

Intel Core 2 Quad Q6600
Mainboard foxconn Mars Chipset
----------------------------------------
Northbridge Intel P35/G33/G31 rev. A2
Southbridge Intel 82801IR (ICH9R) rev. 02
Graphic Interface PCI-Express
PCI-E Link Width x16
PCI-E Max Link Width x16
Memory Type DDR2
Memory Size 4096 MBytes
Channels Dual, (Symmetric)
Memory Frequency 400.1 MHz (2:3) .
VGA nDIVIA 7300gt.

I can't use my speaker on win 7 x 64 and win xp 64 .But hear well when use xp 32
I had installed new sound driver for win7. and had Icon Realtek HD audio manager on taskbar . when i opened speaker icon , i could see the level (green) went up and down however still no sound.

Any advices for me T^T ?

 

[whs]

It is muted somewhere. Right click where you see the green leveler > Properties > Levels. Or just click on the speaker icon and see whether the volume is on. Check also in the Realtek Audio Manager.

 

[strw]

i had turn on everything... T^T

 

[Aphelion]

i had turn on everything... T^T

Set your speakers as the Default Audio device.

Right click the Microsoft speaker incon in the taskbar, select Playback Devices, select "Speaker" and then click on "Set Default".

Select Configure and make sure your system is set to Stereo.

Speakers will be plugged in the light green audio jack in the back. For a few people... it seems to be the black audio jack but that probably because they don't have their system configured correctly.

Ap