I think it's dead

My daughter dropped off her Dell tower computer for me to try to repair.
When I power it up, I never see a BIOS boot up message. There's no series of beeps and the LED on the motherboard glows steady.

I think either the CPU or motherboard died, more likely the CPU.
I replaced the power supply with no change.

 

how many beeps, it's a code to tell ya where to look

 

sorry I missed the no beep, but it sounds like a video board problem to me

 

Do you at least get a black screen with a blinking cursor in the upper left?