Pavilion Elite m9650f will not boot

So my m9650f HP Pavillion that use us as a server and never turn off except for maintenance and upgraddes worked well for 20 months. Last night there was a power failure, and since it does not start.

When I turn it on all the lights and the fan comes on for about four seconds and the TI goes out again, after four seconds more than the cycle repeated lights and fans for four seconds and then four seconds off. There is no beep sounds of any kind. Fans of work: case fan, power source fan, CPU fan, video card fan.

There is nothing in the monitor, no light on the keyboard or anything.

I tried to unplug and plug the graphics card, the cards memory card wirless and nothing.

Can anyone help?

amieres wrote: the battery is completely discharged. I can't enter the BIOS configuration utility because the computer shuts down after only four seconds and nothing appears in the monitor as the keyboard is not reply all or view all the lights. I also tried suggestion of Dave, the power supply seems fine.

BTW, I see a capacitor which has a bulge on the motherboard. Colud that be the problem?

Hello amieres, sorry to say, which may be the problem. I would consider very carefully all the capacitors to check for this condition.

Some capacitors may look slightly rounded, but not much at all. Many of these faulty capacitors will be inflated a fair amount and some even display leak where they connect to the motherboard.

If the capacitor is shorted internally, that could explain why the CMOS battery has been completely drained.

If you find these conditions, I fear that the only option would be to get the replaced defective capacitior or the motherboard replaced. If you have one of these faulty capacitors now, very probably one more that would not allow in the future.

Tags: HP Desktops

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