How to remove the optical drive from a Compaq Presario 3045US?

Try reinstalling the wireless driver.
You can download the device drivers from the Compaq/HP WEB support/download page. Make sure you select your model laptop and the Windows drivers you require and install them. Click on this link to download the drivers: -
www.compaq.com/country/cpq_support.html

It uses a basically standard dvd writer ...(slim ) and will work with any of these ones...try to get one with almost the same specifications ..regarding speed and power usage ..
http://www.outletpc.com/dvd---blu-ray-drives-laptop-optical-drives.html#axzz1fdO5UpuX
If it is stuck ..and you Think it may work after all ..try to open it by inserting a sharp object into that little hole it has in the front ...This will manually open the drive and if it has something obstructing it ..you may remove and see if it works ..Also try top remove the drive by unscrewing it from the back first ..and place it back and press it well ..cause it may be just not making contact in the board level ..

Hi friend,Please try the following link and let me knwo if it was helpful:http://www.bixnet.com/cohpnoopdrin.html
Note: Reseating the laptop parts may void the warranty for the system

There is a site that will give instruction on how to repair this but it you will need soldering skills and delicate handling to do so.
try this site see if it helps.
http://laptopsplanet.com/compaq-presario-dc-power-jack-repair/

Remove the optical drive:
1. Position the computer with the left side toward you.
2. Remove the Phillips PM2.5×7.0 screw 1 that secures the optical drive to the computer.
3. If needed, insert a thin tool, such as a paper clip 2, into the release access. (The disc tray is partially ejected
from the optical drive.)
4. Grasp the bezel and slide the optical drive 3 out of the computer.

if you can use you laptop while the power brick is plugged in the AC outlet, replace the battery.

Download Compaq Presario 3000 series laptop service guide,
Scroll from page 83 to 117 for instructions how to access CMOS battery (RTC battery).

The only thing that comes to mind is a problem with the headphone jack. The jack, itself, could be bad and not opening the speaker circuit when the head phones are plugged in. The other thing might be that the plug on the head phones is not completely compatible with the jack. The second case could possibly be resolved by trying a different type, or brand, of headphones. The first problem would require tearing the laptop down to the point of being able to adjust or replace the jack.
Hope this is of some help and have a good one!
Ron

Plug in the speakers Jack,
then restart computer with headphones plugged inside.You will still hear windows startup sound.
At this point remove headphones and restart.
The problem is usually fixed in this way.

CD drive itself is bad. Replace optical drive.