Time for a new PC. Emachines typically have very cheap power supplies, and they will eventually feed 24 or so volts to the motherboard. Pow, zap, throw away.

Sounds like a power button issue. There may be some dirt, or crumbs under the button. Remove the button panel, and test it. then, blow out any debris, and then retest.

Sounds like a driver issue since this occured right after a restore. look for updated drivers, and go by the serial number of the drive.

Sounds like a power problem. Inspect the motherboard under a magnifying glass. look for any bad solder joints, especially around the battery plug area and the power jack area. It sounds like a...

It sounds like the power jack inside the laptop has broken. We've fixed a lot of power jacks, and your symptoms fit the bill. Strip the motherboard out of the laptop, and buy a new powerjack, and...

Sounds like a hardware conflict. Strip it down to just the Power supply, motherboard, minimum RAM, keyboard, mouse and monitor. If you have onboard video, use that and remove your video card. Get...

Beep codes mean hardware. Purchase a POST card off Ebay, and then read the codes from the card. then troubleshoot the components.

Take out the motherboard, and inspect the power connector-to-motherboard solder joints. Look for hairline cracks in the solder. Resolder if you find any. Also test for power coming in while the...

If there is no video on either the LCD or the external connection, then the onboard video is shot. Take the motherboard out, and inspect it all over with a magnifying glass. Look for components...