How can I be sure that the motherboard is dead and it's not another issue?

Question

So I have and old computer with and Intel D101GGC motherboard and a pentium 4 cpu and award bios, with a long repeating beep and not passing POST.

I tried:

• RAM checking, they are good and working on other computers
• Replacing the PSU with a tested one, and still having the same issue
• I assumed that the CPU is dead and tested 2 others they are both Celeron D processors
• I also tested the CPU of this computer on another one and it's working fine
• I also tried it without RAM and still have the same long beep

I did all this after disconnecting all the other hardware like HDD and DVD drives.

The only time I didn't get any beeps is after removing the CPU I don't know if the processor is needed for the beeps to work.

So My questions are:

• is it normal to not get any beeps if we don't have a CPU installed ?
• am I missing something or is the motherboard dead ?

and thanks in advance.

Answer 1

To get POST beeps, you require a CPU.

Sounds like you did all the right footwork and your motherboard is dead; the only way to be 'sure' is to replace it with a known-good one.

Answer 2

Probably the Motherboard is dead. Anyway if you are still unsure, you can use this gadget to check your motherboard.