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Flashing Lights when powered down

Hi my name is Frank and I'm having a problem with my tower. Everytime I turn off my system these blue lights start flashing from the tower and when I try to power back up it just won't turn on until I start shaking the tower and somehow get the flashing to stop but not until the LED light is stable from the motherboard. Can u pls help me with this?

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  • bookie175 Oct 29, 2007

    I jusy want to say to marki163 that my tower is a Thermaltake Tsunami it comes with certain alarm functions and keys to open the tower. I'm pretty sure that it's the tower because everything in my case is new and pre-tested. I would appreciate if someone who knows about these tower can help me. I appreciate your time and patience but this problem is the case.

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Bookie175, it sounds like you're just trying to turn it off by pressing the power switch, and not by selecting Start, Shutdown from the Taskbar (which tells Windows to save current settings and perform an orderly shutdown process). --LeftyX

Posted on Oct 06, 2008

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The flashing LED is because your system is in "sleep" mode. By default windows Vista puts your computer in sleep. What this means is it doesn't shutdown the power completely it leaves a little going through certain computer components (more specifically the ram) to speed up the boot time when the power button is pressed again.

In XP a the default shutdown scheme is a complete shutdown where power is turned off after the shutdown process is done. If you are using XP you are putting your computer to sleep when shutting down.

As for the boot problem. Newer motherboards have an LED on the actual board to indicate that it is receiving power. If it is of either the power supply switch (at the back of the case) if off or the motherboard connection is loose and the shaking makes it fall into place. (Shaking is usually not necessary and indicates a problem...)

There are a few possibilities I can deduct from your description:

  • the connection from your power supply to your motherboard isn't properly seated and is causing this
  • the power supply switch (not the case switch) is being  turned off and results in the computer taking a few seconds before the internal LED become solid
  • ... the dreaded sign that the power supply is failing and is on it's last legs...
My suggestion is to check all connections and if that doesn't work borrow a power supply from a friend and swap them to see if it boots properly.

(If a friends with a spare power supply isn't an option a local PC repair shop should be able to help you out... but probably for a fee...)

Posted on Oct 28, 2007

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Posted on Jan 02, 2017

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