I have a Emachine w3503 desktop computer. I bought it new in 2006. I have barely used it because about 8 months after I had it, it locked up. When turned on it says enter administrator password. After 3 bad tries, it reads, motherboard/system halted . I have taken the battery out and tried that, but nothing.

The manual is at...
http://www.manualslib.com/manual/46776/Emachines-13.html?page=4&term=panel&selected=0
See page 46 "Removing the side panel".

Hi there,
Are you running Windows XP?
if you are try following the link below and do the steps provided...

http://support.microsoft.com/kb/315353
Hope this helps!

Hello sortugado, If your sound is dead, This could mean that you've plugged it into the wrong socket. This could be wrong. But try this.
Start - Control Panel - System - Hardware - Device Manager - Right Click on the Sound/Audio (it should have a yellow sign next to it) Then go Find Manually and go down the List, Press Sound & Hardware, What ever brand your computer is, there should be sound that is the brand name as the same computer brand you have. Once that's found, Click it. It should then install your hardware sound. If this problem still doesn't work, You can simply go on ebay and buy a $5 Sound card. These do work, I am using one now, and let me tell you, it's absolutely great! So cheap great quality, and fast shipment. I hope you get your sound to work :)
- Steven ASAP
Here to help!

Save your money and put it towards a nice fast mother board and RAM.

Sorry, but it appears that the EMachines model W3503 does not have a floppy disk drive installed. See this link: http://reviews.cnet.com/desktops/emachines-w3503/1707-3118_7-32178774.html

Floppy disks are obsolete at this point. If you have data on a floppy disk that you wish to retrieve, see about getting help from someone you know who might have one on their computer system, or visit a public library (you might be able to offload the floppy disk contents and e-mail them to yourself).

Most people use USB flash drives now. They are far more reliable and have enormous capacity. Definitely get one if you don't have it. The W3503 computer has several USB ports on it.

hi try to upgrade some ddr

you need to repair your windows or the best solution is reinstalling windows

The amber power light indicates that your computer has been "sleeping" or "hibernating" and usually all it takes to restart the computer is tapping a key on the keyboard. If this is not the case, try holding the Power switch down for 6-10 seconds to force the system off. Restart in Safe Mode and try to find the settings for Sleep/hibernate, open the control panel and open the Screen Saver. Select "Change Power Settings" and set it for "Never" on sleep and hybernate.

You can call Mirosoft at 1-800-642-7676 they can help you with this problem.

Pull the bios battery for 15 sec. Re-install windows.