Motherboard no Image

[2X]

Hello,
I have the below problem. I open the PC and it starts (CPU fan is working) but I have no image at all (not from the external VGA and neither from the on board VGA). Near to the bios chip there was some blown capacitors so I supose that something was happend with the voltage of the bios chip and the bios program corrupted or am I totally wrong? I replaced the "1" CPU with the "2" CPU and no image again. Also, I measured the CPU supply cable and it has 11,8Volt, but the strange thing is that both CPUs "1" & "2" are absolutely cold and the CPU fan spins (also the VGA chip is cold). All these symptoms are not bios (I can't find this bios... does anyone have it?)?

[coromonadalix]

1st  give us the motherboard specs model number ...

do you connect all the power supply lines,  at least you need 2 connectors  1 for the cpu the other for the board ...

is your psu okay ?

[2X]

I measured on the motherboard 3,3V, 5V, 1,2V, 12V. The motherboard there is from an ultrasound machine "GE voluson 730 expert".


https://i.machineryhost.com/a5b9b2898ac14fd01671e60936aa079b/large-gebraucht-ge-voluson-730-ultraschallgeraet-0394.jpg

[Vovk_Z]

Near to the bios chip there was some blown capacitors so I supose that something was happend with the voltage of the bios chip and the bios program corrupted or am I totally wrong?

If you are lucky then yes.
But I don't see a bios chip on the MB photo at all. 

[coromonadalix]

mmm they look like kontron 478 boards or ibase 478 .....



Kontron pcg820
seems a variant of this one   but the photo show  the bios socket on solder side ??
https://met8257.blogspot.com/2020/04/sbc-kontron-sbc-vga-single-lan-pcg820.html

http://mediaserver.voxtechnologies.com/FileCache/Kontron-PCG-820-D-1341847773S.pdf


welll

you had your answer already written on the pcb

TEAN TN2 94V0       

now the Hard part is to find some bios ??  and conflicting infos,  some sites say socket 370 ??  and some the socket 478 


https://www.ebay.ie/itm/223644984142?
https://www.ebay.ie/itm/255981822001?
https://www.ebay.ie/itm/313961503070?
https://www.ebay.ie/itm/385139821903?

https://www.ebay.ca/itm/164288627254?
https://www.ebay.ca/itm/303698890084?


did not found anything but fakes links or else,   you may need to buy another one ?

[2X]

Here you can see it. I upload wrond picture in my first post. I apologise.