Pc wont boot

Ok I got it. For starters, your BIOS isn't recognizing your CPU because its outdated. Also, your keyboard is not being detected by your system. Try a different keyboard. To fix the BIOS issue, you need to find your motherboard manual and find out how to update your BIOS.
 


I don't think its outdated because my old processor for the same motherboard was working it was
Intel® Core™2 Duo Processor E4300
(2M Cache, 1.80 GHz, 800 MHz FSB)
My current processor Which is newer
Intel® Celeron® Processor E3300
(1M Cache, 2.50 GHz, 800 MHz FSB)

And the keyboard i have 1 its wireless usb. Does the keyboard have to be PS/2?
I will try do something about the Bios update.
But what about the"USB device over current status detected"
"CMOS checksum bad"
and "Chassis intruded":??:
AND how am i supposed to get in bios if it doesn't respond to keyboard
 

Everything he mentioned he get's of that picture,why do you disagree? Even though you seem to have put a newer cpu in...



Like he said,try a different one.

Maybe try with the old cpu and do a bios reset to optimal default values,then update the bios,after that put in the newer cpu.
Maybe do a clear cmos by removing the battery from the motherboard for let's say 15min. and take it completely of the power=out of the wallsocket.See if that does anything for you.
 
Ok, I did some research on your BIOS. The USB error is caused by damage to your USB ports that are connected to the motherboard from the front panel. Disconnect them from your motherboard and see if the error goes away. As for the CMOS error, open the case and pull out the battery on the board. Replace it with a brand new battery.
 
what i wanted to say about keyboard is that i had tried 5 different keyboards none of them worked and i tried removing the battery and unplugging all cables from the back of the case i removed the front usb.I disconnected all fans from the case except the video card fan and cpu cooler.
i tried the old cpu aswell.
NOTHING WORKS!!!