Older Dell 8200 will not power on. When plugged in the power light blinks amber, and it will not respond to the power switch. If I swap out the cpu for an extra celeron I have lying around the fans power up however nothing displays on the screen. I can't tell if the CPU's are the problem (bad original and the wrong replacement) or if the power supply has bit the dust since it does run when I do my experiment. Any ideas? P.S: I've removed the hard drives,RAM, and the CPU altogether - Same issue (blinking light, no fans, no response.) Thanks!!!!