Computer beeps at start then shuts downClosed

Question

Hello,

I have a computer that I recently had to install a new power supply.  I changed the power supply and worked fine for about a day.  Now if I let it sit for awhile, it will start to start up and get to about as far as the Windows XP screen then shut off.  Then if I try to restart it, I get and beep sound..alternating beep between two tones.  It barely makes it out of the bios before shutting down then.  I had pulled everything (ram, processor, graphics card) out before I changed the powersupply.  It worked for about a day and then the next day nothing.  Any thoughts?

suff954 · Answer

Dear Sir,

Did you replaced the power supply of same power??? I mean the watt?

This is may be a ram problem,

Just remove and insert it again

Thanks

ryan · Answer

hello sir 
 it may your ram ...just replace your ram if you think is broke....
thanks

igotcha · Answer

Yes, I replaced with same wattage power supply.  I will try removing the RAM, but I think it was the ram it would not start up at all and would be solld beeping noise not an alternating one.  The other fact is it worked for 8 hours the day before.

igotcha · Answer

Any other thoughts?

igotcha · Answer

I recent restarted the computer and after the bios, I got a message stating the computer was recently shut down do to thermal overheat - press Enter to continue.  It then shut off on its own.  Computer Dead???

Computer beeps at start then shuts down

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