Asus P4P800e deluxe Won't Boot Please Help

[dwg]

I have an Asus P4P800e deluxe with a 3.0ghz intel hyper threading CPU.
My computer has been working for months. I have a mouse, printer, and
card reader plugged into the usb ports. I plugged in a usb data cable
for a cell phone and began to down load ringtones. Everything was fine
the first night. THe next day I attempted the samething and my
computer froze. I went to reboot and it did nothing but say "system
failure, cpu test". I swapped the CPU into a friends computer and it
worked fine. Does anyone have any suggestions?

 

[Ginchy]

Have you unplugged the usb device?

If yes try resetting cmos with the jumper or take the battery out or both!

 

[Freddie Clark]

I have an Asus P4P800e deluxe with a 3.0ghz intel hyper threading CPU.
My computer has been working for months. I have a mouse, printer, and
card reader plugged into the usb ports. I plugged in a usb data cable
for a cell phone and began to down load ringtones. Everything was fine
the first night. THe next day I attempted the samething and my
computer froze. I went to reboot and it did nothing but say "system
failure, cpu test". I swapped the CPU into a friends computer and it
worked fine. Does anyone have any suggestions?

Try changing the Video card, I had the same problem and it was the Video
card that was bad.

regards
Freddie