My computer is shutting down before it boots?

Question

hi..
i have a computer that when i turn it on, it turns right back off before it dose anything else.
What can i do the resolve this problem?

I have checked all of the hardware componants on the motherboard already.

ok.. i will try some of these answers,
But heres more details, i turn on the computer and everything starts up, i mean CPU fan Lights Drives, but before it shows anything on screen it turns right back off, Not EVEN A BEEP.
Heres what i have done so far, i took the battery out and left the board with out any power for 3 days and then put it back in, only to find the same problem, i've checked my power supply with another one, and that still didn't work, took out all hardware componants (hard drive, etc) with no luck.
Soo...
when that information in mind.. express yourself

Answer 1

Same thing happened to me heres the problem....1.the switch is bad or the mother board has becomed tweaked

Answer 2

It seems that a piece of hardware is no longer functioning properly and your computer is shutting off as a result. I had a similar problem and it was a sound card that just decided not to work anymore. You will have to check each component individually by removing it and seeing if your computer boots up. It will take time, and you may still need to consult a professional as a last resort if you can't get your computer to boot up.

Speaking of booting, you may have a boot sector virus if the hardware problems are ruled out. To cure a boot sector virus means saying goodbye to everything on your harddrive...lets not even think of that!!!

If my advice does not work, try someone else's, that may work. Nobody wants to pay for a "geek" to fix it if we can fix it ourselves. If a boot sector virus, the "geek" may be able to save your data. : (

Answer 3

Well since nobody has mention this I will. I think you have got a bad Motherboard because it is not even going through the boot screen. I would suggest taking to local techie and have it checked and fixed or order the Motherboard or whatever you need and fix it yourself.

Answer 4

Sounds like a continued reboot loop only your computer shuts all the way down put in your windows cd and try formatting your HD and re installing windows

Answer 5

I had the same problem. It was the CPU fan. CPU got too hot and shut down. But it may also be the hard drive

Answer 6

Well i was going to say check the RAM, but since you have checked it, it must be fine.

Sounds to me like it's some kind of hardware problem. (check the other components)

Answer 7

My PC did the same thing and i found out it was a bad CPU.......once changed everything went back to normal.
word to the wise......if you do not expand or build PC's by your self ,then do not attempt to change out your CPU.....take it to a pro, you could fry your motherboard if your not careful.

Answer 8

remove the battery for a couple of minutes and reboot if you added any hardware remove it and install the proper drivers for it and then reinstall the hardware.

Answer 9

which Operating system are u on? does it boot? u said it doesnt beep, n restarts automatically, i had such a problem b4 and i had to Recover the system by running a bootable cd "XP" and recovering it.
put ur the cd in ur machine"cd rom" restart/reboot ur machine....while it's booting keep on pressin the delete/del key, cmos setup will appear, set to boot with the CD.......save.....the machine will restart......choose start with the cd option....then press R to recover...follow the instructions....hope it helps

Answer 10

You need to take that laptom and give it to someone that can look at it, and give tou real advice....
We can only gues....
Something is causing short circuit! Do not start it again because you will destroy othrer components.....
I hope this helped....