Emachine t1842 will not come on. used to come on and brought up bios setup. i replaced battery, still same prob. then one day it would not turn on at all and has not come back on since.

1. did you forget it
2. or bought it used like that?
3. or just out of the blue BAM silly PW needed, :???????

Laptops are very hard to fix like this, no PW clear jumpers
2009 made,
the coin cell battery is dead, on that day #3 above and not BIOS lies to you. understand the gravity of that?
it must be replaced and if lucky no more PW.

Usually on laptops there is a way to reset the battery in the BIOS. When the computer first starts booting it will usually tell you what key to hit to enter BIOS, or sometimes it will say to enter setup. The most common are F1, F2, F10, and Del. Once you are in the BIOS setup look around for something that says test battery, or clear battery memory. Once you have told it to run it will usually want to completely discharge the battery, then charge it again and that will reset the measurements on the battery charge. If that does not work then the battery is most likely bad and will probably need to be replaced. You can continue using the laptop without the battery but you would need to keep it plugged in when you are using it.

Turn your computer on.
When you see "Press <BLAH> to enter BIOS SETUP mode", press the <BLAH> key.

Change the "boot-order" to select your CD/DVD drive as the "first" boot device.

Put the first recovery-disk into your CD/DVD drive.

Save-and-exit from BIOS SETUP.

Your computer will "boot" from the media in the CD/DVD drive, and thus will start the "recovery" process.

most likeley if you see something on the screen but it wont boot it is a mem problem, does it load bios, if so it is prob not memory

into the bios and set you all, clock, hdd, DVD and other set when i can then save and exit, if after use and close the unit and is again able to use some time lapsed and this is the same still only one message means that your damaged battery and need to replace its battery, good luck and hopefully I helped you

I had the same issue. I know the problem. Your power source is not working proprietly and you need to change it.

See if computer will reboot as normal. If not shutdown and go into the bios and find the default/setup settings and turn on. then reboot.If you have a problem still. Contact me here with motherboard type and what os you are running. I hope this has been helpful RICHARDM69

Sometimes this problem happens when your CMOS battery already dead. Replace the CMOS battery and run F4 to setup the date and time. Save it and you back to business.

Replace the CMOS battery that is busted. after replacing configure in bios setup and load bios setup default.