My compaq presario c700 speakers dont give sound however i can listen sound using headphones. Is it some hardware problem in its inbuilt speakers? I have windows 7 ultimate OS.

CHECK THE SOUND DRIVERS IN DEVICE MANAGER

you need to install the earphone driver

If it has Realtek device drivers check through that not WDM. Also, make sure you set the record settings for the mic to select it, not the play settings.

At first let me tell you should have Operating System Vista for the inbuilt mic to work to get the full performance as it has the drivers. Got to Start>All Programs>Accessories>Entertainmnet>Sound Recorder. You can check the mic is working or not.
Regards

is the headphone you are using a stereo headphone with left and right speaker in it? try using another headphone, i suspect that the problem is in the headphone jack.

i can't find sound and audio driver after formatting my laptop compaq presario C700 notebook pc

sir i have no sound crivers can u give me c700

Asalam u alikum,
Dear friend yours broblem have been solved if you do this steps.
1. first go to the start menu.
2. then select a control panel.
3. In control panel select option (sound,speech,audio devices) then select change the speaker setting, the sound and audio properties is opened, go to the speaker setting select advanced option in advanced option change the speaker setup and select stereo headphone and apply it.
I hope its solved yours problem.
Thanks

i have compaq presario c700. when i attach headphones, the laptop speakers dont get off. both headphone and speaker are on. the sound should only come from headphones..
i have windows professional installed

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Just download audio driver from this link

http://www.mmoogle.org/compaqc751nrwindowsxpdrivershowto

I am sure it will work.