Computer won't start

Hi

My computer will not start when i press the start button. There seems to be power to it as the external hard drives that are connected power up ok. If i pull our the USB cable from one of the hard drives then the little light on the hard drive goes out. It comes on again if I plug it back into the computer. Also the power light on the monitor is on.

Could someone tell me what the problem might be and how to fix it please?
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  1. hey there.

    From what you've told me, I think the PC is actually powering on, you're just not getting any display output. Does the PC sound like it's coming on? Fans spin, hard drives power up etc?

    Firstly, what specs is your computer? Is it a new computer you've built, or has the problem just recently developed?

    Does the computer give you one short beep when you turn it on? (this would indicate that the POST has completed and everything seems to be fine.)

    let me know,

    KB
  2. Yes. Please list your computer spec's so we all know what we're dealing with.
  3. Nothing comes on, no fans no sounds so I am guessing it is the PSU?

    It is not a new build and this just happend over night. I tried to turn the computer on and nothing!

    My Specs:

    CPU: Intel® Core 2 Quad Q9550
    CPU Cooler: Coolermaster Hyper TX2
    Motherboard: Asus P5Q Pro (Intel P45 chipset, Crossfire)
    Memory: 8.0GB Corsair DDR2 800mhz XMS2 (4x 2GB)
    Hard Drives: 1TB S-ATAII 3.0Gb/s
    2nd hard drive: 500GB S-ATAII 3.0Gb/s
    Optical Drive: 22x DVD±RW DL S-ATA Lightscribe
    Graphics card: NVIDIA GeForce GTX 260 896MB
    Sound card: Onboard 7.1 Audio
    Operating System: No Operating System - I will install my own
    PSU: 700W EZCool Tornado
    Case: Antec Three Hundred
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