System doesn't Boot, long repeated beep. System shuts off

[diego772]

Hi, I'd like to see if somebody have any idea of what's happening to my sistem: a Medion M3 Composer with Mobo: MSI Ms-7046 socket 775, P4 3.0HT, DDR-SDRAM.
It has been working flawless for about a year, two days ago, I go boot it, and the WinXP splash sceen got frozen. I powered off the PC and powered on again...Single long beep, that repeats regurarly and no video...no boot.

I tried to reset the CMOS by removing the battery. When I powered the PC back on, it shut off immediately and by itself re-powered on after 2-3 seconds doing the same long beep, no boot, no video.

I tried all kinds, removed, all devices, tried one by one the RAMs, installed another CPU, etc. all with no success.

I tried anothe MoBo, but didn't finish booting (!)...it shut off by itself after a couple of BIOS screens...maybe this motherboard is not fully compatible with the system...or faulty PSU???

Unfortunately when I put the orignal MSI MoBo, and put power, I didn't got any self-suts off...but I smelled what I shouldn't have smelled!!!

ANY HELP, CLUE???

THANKS!

 

[dazzer9535]

Do you see your beep error http://www.computerhope.com/beep.htm

 

[diego772]

My beep is just a long beep that starts right after I press power button. Just a long single beep that repeats over and over.


I forgot an important things on my original post...If I unplug the 12V 4 pin connector from the MoBo, i don't get the beep...Of course I also don't get life from the PC, having disconnected the CPU from power. It might help to pinpoint better the problem.

Thanks

 

[dazzer9535]

My beep is just a long beep that starts right after I press power button. Just a long single beep that repeats over and over.Thanks

This will tell you what you need to know about beeps try having a look http://www.computerhope.com/beep.htm

 

[diego772]

Unfortunatey there is no one long repeating beep shown on the page.
I have an AMI bios, and one long beep is not mentioned!
Thanks though

 

[bronyraur]

Check your RAM.

 

[DonNagual]

You mention smelling something... smoke? Something fried?

And also, you mentioned that you tried with a different motherboard, and still could not start up?

I am guessing you have a dead power supply. Do you have another one you can use to test this?