Need help figuring out which part is not functioning...

[sanna]

I am currently putting a machine together myself. I have a Celeron 300 processor from my brother that he said works. I also have two ATX socket 370 motherboard. When I turn on the machine, the case-built-in speaker didn't make the "beep" noise as other machine would, and my screen is just blank. I know there's nothing wrong with the speaker because I've plugged that cable to my running Athlon PC and it beeps. So if it's not the case, is it possible that I just got lucky in such a way both motherboard are bad? They are both brand new ones, one from newegg.com and the other from justdeals.com. Any help is really appreciated. Thanks.

 

[InsaneMorphius]

sanna,

I highly doubt that both motherboards are bad.

Did you insure that the CPU and RAM was seated correctly?

Do any of the fans on either the motherboard or CPU startup?

Little more info plz

Morph

 

[sanna]

Yes, I am pretty sure the CPU and RAM are correctly installed. From thread I've asked before, I've also ruled out power supply possibility because that PS will boot my Athlon machine fine. That seems to lead the other possibility back to CPU, which I don't know how to test other than get another CPU. But someone told me that even without a CPU and RAM, that PC speaker is supposed to make the "beep" noise once connected to motherboard and powered on, assuming motherboard is functional of course. Is this statement true? Thanks.

 

[4824guy]

Try to isolate the mobo more by removing the IDE cables, HD's, cd-roms, floppy, and other addin cards except video card. You should get a video output with just 1 stick of ram, cpu with HSF, and video card.

Make sure the mobo jumpers, if any, are set correctly for that CPU.