[cyoung2009]

Gateway:laptop. Model: MA3-6460. Unfortunately this laptop is out of warranty by a few years. It ran great until a few months ago. I shut it down one night like normal. I went to boot the next morning and the power came on and I could hear the fan, but nothing on the screen. 15 seconds later it shuts down, then boots back up repeating the same process. never actually booting up. I tried a different power supply, I tried changing out the hard drive, i tried re-seating the memory then changing out the memory. I replaced the motherboard battery. Not really sure what could be the problem or where to start. Any Idea's? Its a dual core processor (AMD). and 2 gigs of ram. windows vista. If even of that matters.

[Advertisements]

cyoung2009

Have you or can you try connecting to an external screen using the VGA port to see if you at any time get a display such as the BIOS screen.

Remove the battery, AC adaptor cord + the Ram also, once you have done this hold down the power button for a while to dispel any static charge that may have built up in the system, if you have two sticks of Ram try one at a time to begin with, reassemble the computer and see how it goes, let us know the results when you are able.

[phillpower2]

cyoung2009

Have you or can you try connecting to an external screen using the VGA port to see if you at any time get a display such as the BIOS screen.

Remove the battery, AC adaptor cord + the Ram also, once you have done this hold down the power button for a while to dispel any static charge that may have built up in the system, if you have two sticks of Ram try one at a time to begin with, reassemble the computer and see how it goes, let us know the results when you are able.

[cyoung2009]

Tried plugging into VGA display. nothing comes up. when you push the power button lights come on, you can hear the processor and fan, then 10-15seconds later it shuts off and starts again. It repeats these steps but nothing comes up on screen. I tried the static discharge when didnt do anything so far. I tried one memory module at a time and also tried different memory and different HD. replaced the on board battery as well.

[phillpower2]

This does not look good for the MB, it is possible that the video chip has failed or there is a short circuit, is the AC power jack secure.

[cyoung2009]

Yes, it is secure. It does not wiggle. The power adapter was also tried on another gateway and works fine So I'm certain its providing proper power to the computer. I tested the A/c adapter and its getting proper voltage.

[phillpower2]

I`m afraid that I can only suggest one other thing now and that is to check the cooling fan, see from page 31 onwards @ http://support.gatew...ile/8511180.pdf other than this I can only suggest that the notebook is checked out by a local tech store.