Computer Starts Up Then Shutdown

[Xiong]

hi
im new here and im ok with computer stuff....my computer wouldnt start for some reason but back in the past it works just fine. I've had it for about 3-4 years between when it didnt start i thought it was just the power supply so just got a new one and it still does the samething...just been thinking that it be the CPU now so any Help/Advice would be awesome and i hope u guys can help me


My Computer Spec:

MSI K9VGM-V (MS-7253 Ver. 1.1)
750 Watt Power Supply
Nvidia 8800 GTS Extreme Edition
AMD Anthlon x64 X2 +4200 (Duo Core) Socket AM2
Pioneer DVD/CD Drive
1TB Hard Drive (SATA)
Window Vista 32 Bit Black Edition (but its base on Vista 32 bit and its not Pirated)
Bios still the same
2GB of RAM
Sound Blaster Sound Card

[Disturbedguy]

We would need more information as to what happens?

Does anything spin up?
Do you get any lights?
At what point during turning on does it go off again?
Do you get any unsual beeps?

[Xiong]

Does anything spin up? everything spins (Video Card,CPU Fan,Power Supply)

Do you get any lights? no only when u turn it on the computer case light is on then computer shuts down

At what point during turning on does it go off again? its like really quick starts then shutdown right away

Do you get any unsual beeps? none only thing i remember is when the computer acctually starts up then it beeps

[Ulti]

The way it turns on really quickly and shuts down again suggests either a short or RAM error usually. Try taking the CMOS battery out and see if resetting the BIOS helps.

[Xiong]

i took out the battery while the computer is completely shut off then put it back in or do you mean take out the battery then start up the computer (wouldnt that messed up the computer even more)?

[Hawker1986]

Could possibly be a short, I had the same problem once and spent ages working out one of the fans had died and was shorting out the whole rig. Unplug anything unessential to boot from the PC. So unplug all fans, HDDs, optical drives etc etc and see if it boots then.

If so start plugging things in one at a time to see if you can isolate the short, if not then it could be cpu/mobo/ram and youll need to start testing those.

Hawker

[DanGent]

If you take everything out apart from the CPU (and i'd leave the fan on this!) then you should get a string of beeps indicating memory not present. then put things in one at a time

[Ulti]

i took out the battery while the computer is completely shut off then put it back in or do you mean take out the battery then start up the computer (wouldnt that messed up the computer even more)?

Yup, take it out while it is completely shut off and leave the pc shut off. After around 10 mins or so put the battery back in and try to turn the pc on. Taking out the CMOS battery should reset the BIOS settings.

[Xiong]

i would like to thank everyone in the forum here to help me get my computer up and running again. you guys dont know how much that meant for me so im really grateful for your help.

THANKS EVERYONE