I have a Dell Studio XPS 435mt that is not booting. I get a quick amber flash on the power button and the case fans spin up for just a second then that's it. Power supply has a steady green light on the outside. Motherboard has a steady amber light. I pulled power and held down power button for 20 seconds, same result. I removed all six 1GB memory modules and the ATI video card, same result. I removed the power connections to the HDD and DVD, same result. I pulled the CMOS for 30 seconds than reseated. Attached power cable and the power button was quick flashing amber. I pressed the power button and the power button turned white and the fans spun up. I removed power and replaced one memory module than powered back up. Same as before, single amber flash then nothing.
Could this be the power supply, motherboard, CMOS, video card??!? I am thinking the motherboard needs replacing, but i'd like some input before I plunk down the cash for it. Could it be the PS?