I have a Dell dimension 4700 . I recently acquired it from work. Not necessarily in the best condition. I cleaned it up and tried to power on and all it does is blink orange/amber,it will not power on . It has started since I've had it though and i cleaned it up and it ran great, but i only got it to start one time.Its running WinXP Pro,with a Pentium 4. So what i know is that the mobo is getting power because the green light is on. I have checked the 4-pin aux cord that powers the processor. I know the power supply is set to the correct voltage. All cables seem to be connected properly. I have run out of ideas. Any Suggestions would be much appreciated!