computer won't boot

I have Dell Optiplex GX1 and it won't boot at all could it possibly be CMOS Battery? I f so how do i locate iton the mother board? is it expensive to replace?

 

I really dought that it is the battery, does your fans come on? Can you feel air coming out of the rear of the pc.? Could be alot of things until we narrow it down. ed

 

Yes the fans come on it just won't boot even from cd

Thanks Swede

 

Be sure your monitor cable on the rear of the pc is connected tight, are you sure the monitor is working? The battery will be on the mother board, its about the size of a nickle, it can be mounted flat, or in a holder standing up and down. They are not very much, maybe $3 [CR2032] battery number.

 

Yes the monitor is working

Thank You
swede

 

I get no beeps Tim ty for your reply

swede