My Computer Start but won't enter to the BIOS

[enanobo]

Hi all, I have an old computer working fine until today, I use it just for rendering, as a render node and it was doing that, and somehow the connection whit the server just stop, so i check it up, and it wasn't giving any video sing, so i'v restart it... and it start BUT after 2 or 3 seconds it restart alone but after that doesn't give any video sing event any beep sound of booting... i'v tried anything that i know: i'v live it just whit the CPU, one slot of RAM per CPU (it's a dual Xeon), one Hard Drive, and the GPU... and the same happen; it start, after 2 or 3 seconds it restart alone after that it stay on but won't give any video or any Beep of booting, i reset the CMOS by taking off the battery, and put it after a few seconds, and nothing... the same thing happens.
I'm sure that is not the PSU (Power Suplie) because it's almost new... at this point i'm lots, i don't know what else to do

PLEASE HELP!!!

This are the computer Specs:
Motherboard: Supermicro X8DAL-i
CPU: Dual Xeon 1366 / X5680 @ defaut speed of 3.33 GHz
RAM: DDR3 standar Corsair 1333mhz of 4GB per slot
GPU: Quadro 4000
PSU: EVGA Supernova NEX750G 80PlusGold.

 

[caddi daddi]

restart the computer, as it is booting up, slowly tap the delete key to try to boot into the bios and report if you can get into bios please.

 

[Johan45]

Reset the CMOS. Set the jumper and pull the battery. Judging by the sudden stop there may be something physically wrong with it, check the board for bulging/leaking caps. If possible you should check parts in another system.

 

[enanobo]

Tnx for both of you fir reply, it seems that the computer need a little more time without the battery to reset the CMOS, now i'v could enter to the BIOS and start to run the Windows Sistem Recovery... i'll let you now if something wrong happend again

 

[Johan45]

That's good news

 

[caddi daddi]

we do like a cheap, easy fix.

 

[enanobo]

it start happen again.... help everybody please i don't know what else to do!!!

 

[Johan45]

You'll have to test parts if you can. Start with the easy ones like ram and GPU. Are the coolers working properly?

 

[enanobo]

yes the coolers are all right... i think... can it be the MOBO battery?... that computer pass a long time shutoff and unplugged maybe a damage or uncharged MOBO battery can make this happens?

 

[caddi daddi]

those batteries are cheap, so try it.

 

[wingman99]

Do you have a substitute hard drive you can try?

 

[enanobo]

Do you have a substitute hard drive you can try?

yes i also tried whit other Hard drive, and the same.. and please read my next replay, i think that maybe found the issue

 

[enanobo]

well after searching a lot of things... i´v found something: i did not mention that in January of this year i´v update my CPU´s whit the X5680 TDP of 120W before that, i´v had the e5620 TDP of 80W and in these months all was working fine whit the update, until this happend... so i serch in the Supermicro webside and in the webpage for this MOBO in the specifications of the CPU they add that it has a limit in the TDP of 95W (something that i´m almost sure that was not in the past) so i search in the Manual and say nothing of a limit in the TDP for the CPU´s... for me it´s too wear that i´v did´t view it before, but anyway: i guess that the issue it´s for the higher TDP on the CPU´s (120W) that overpass the limit of the MOBO of (95W)... can this be the answer of my problem?, and if i´m right which part of the hardware it´s damage: the MOBO or the CPU´s?

 

[wingman99]

From what you have said it is probably a bad motherboard.

 

[trents]

You could have damage the motherboard by running a CPU with a TDP that exceeded what the board was rated for.