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Shuttle X PC - HD + Power LEDs briefly illuminate, no boot.

Hi,
Last night I shut down the machine as usual.  Went to start it again via the power button on the front today.  All that happens is the Power (blue) and HD Activity (amber) LEDs illuminate briefly (about .25 sec).  Nothing else happens at all -- no fan, no HD spinup - it's completely 'dead' apart from those LEDs blinking on once.
I've done the usual: re-seated the AGP card and RAM, removed and reinserted the CMOS battery, attempted power-on without any external or internal (non-vital) peripherals connected.  Still no luck.
Any ideas what to try next?
Thanks, Chris

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  • chris442 Dec 02, 2008

    Just to add...


    The green LED on the motherboard itself is illuminated (which I presume is a good sign).  The front power and HDD LEDs will flash only on the first press of the power button.   Subsequent presses get no response at all.  The LED flash only happens on the first power button press after unplugging/replugging AC power.

  • chris442 Dec 09, 2008

    Yep - it was indeed the PSU.

    I took out the stock PSU then took a standard ATX supply and ran its power cables in through the back of the Shuttle case. It fired up fine.

    Of course, now I've got a power supply sat behind the Shuttle that's about 1/2 the size of the PC itself, but at least it's working :)

    Unfortunately the Shuttle's quite an old model and the PSU seems to have been discontinued. I'll have a hunt around to try to find one.


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It sounds like you have a bad power supply. It will store up a very small amount of energy (enough to run some LED lights) but not enough to power up the system. That's where I would look. If that is not the problem, then I would look to the capacitors on your motherboard. Good Luck!

Posted on Dec 08, 2008

  • James Swafford Dec 09, 2008

    Glad I could help... Tell me more about the Shuttle and the power supply (pictures?) and I would be glad to help you look around!

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