My son's presario f700 has no sound but a clicking noise

Here below are possible causes and troubleshooting steps of laptop that can't power on, hope it may help:
Possible causes:

1. AC adapter failure.
2. Power jack failure.
3. Motherboard failure.

Possible troubleshooting steps and repair solutions:
1. Test the compaq f700 ac adapter with a digital multimeter. It's possible that you have a failed AC adapter. If you don't have a multimeter, test your laptop with another known good AC adapter.

2.It's possible that power jack (socket where you plug the AC adapter) is broken. Remove the motherboard and take a closer look at the power jack. In some cases you can fix the jack by resoldering it on the motherboard. In other cases you have to replace the jack with a new one. Using a multimeter, test if the power goes to the motherboard through the jack.

3. If replacing the AC power adapter and jack on the motherboard doesn't help, most likely you have a bad motherboard. Replace the motherboard.

You need to print this out-on someone else's computer. Hope it works for you!
Remove the battery and charger/ac adapter/power cord from your Compaq Presario F700 laptop, press and hold the power button for 20 seconds to discharge any residual current inside the Compaq Presario F700 . This clears your RAM and is like a hardware reset. Replace the battery and charger/ac adapter/power cord and turn your Compaq Presario F700 laptop on.

Boot in "safe mode". As it starts up press F8, the computer ask you if you'd like to start in safe mode. Highlight "safe mode" and press enter. See if your laptop is booting up ok .

If your Compaq Presario F700 boots ok, do the following,

Try System Restore first,
Start Menu->All Programs->Accessories->System Tools->System Restore. Choose the most recent date before you the encountered problem. If it doesn't work, try the next date.

If System Restore does not fix it, as a last resort, you might need to fdisk, reformat your laptop hard disk clean and reinstall OS, that usually fixes all bugs. Before going that route, try following,

Uninstall unnecessary programs and applications.

Scan with a antivirus program

Scan with a spyware/malware program

DEFRAG C:

CHKDSK C:

Clean up and repair registry problems with registry repair software of your choice

If the problem persists, did you check if it could be your Compaq Presario F700 laptop power cord or power source problem? Defective or insufficient power supply might cause error messages that are misleading. Take the battery out and power on your laptop with the charger only. Make sure your Compaq Presario F700 power jack and charger plug tip are securely connected. Did you notice the power jack loose? You can find laptop power jack on ebay. Fixing and soldering the power jack requires professional skill though. The charger green/blue LED should be on. If not, replace the defective charger. Compaq Presario F700 laptop battery charger, especially its power cord/cable, lifespan is limited and does not last forever, consider buying a lifetime warranty charger online from company like www.topmic.com

You could be having issue with the speakers the connection or the sound card. I would try another set of external speakers and go from there if this does not work replace the driver if this does not happen you may have a board issue. John

reinstall audio driver for your system windows

if you mean that you cant get any sound on your computer
control panel sounds and audio,volume you can adjust the volume or advanced,speakers select appropriate speakers or audio you will find 3 drop down lists make sure you have selected the right speakers or control panel,administrive tools,computer management,device manager scroll to sound,video and game cotrollers could be a yellow question mark? right click to re-install drivers
hope this helps

hi

find your sound drive

http://www.topshareware.com/audio-driver-compaq-presario-c700/downloads/1.htm

Make sure you have the correct plug. The audio out is usually a green plug with a little picture of a speaker next to it. The microphone jack is usually red with, you guessed it, a little picture of a microphone next to it. If you're trying to get sound from your PC to your stereo, you want to connect the cable to the green PC jack.

Also, make sure your volume on the PC isn't muted. In the lower right hand corner of your PC screen, you should see a little speaker icon (click the arrow next to the other icons if you don't see it). Double-click that speaker icon and look at the volume settings. Make sure nothing is muted or set too low, then try again.

Hope this helps.

Sounds like its the fan . The more demand you place on the system makes it run hotter so the fan speed automatically increases to compensate

Hi,
if u want Drivers for Compaq presario F700 please use below link for win vista Os ..there is all drivers for u r laptop


http://h10025.www1.hp.com/ewfrf/wc/softwareList?os=2093&lc=en&cc=us&dlc=en&product=3629568&lang=en


If this link is useful for u please rate me...........

click on advanced properties and select proper output settings