Yeah... Similar things happened to me recently. Chances are something cooked. If it's not bleeping at you, then it's probably a part of the motherboard, or the processor itself. The component part/s usually aren't terribly pricey to replace, but the trick is figuring out *what* cooked. There's, sadly, not a particularly easy indicator.
I don't have a lot of great advice beyond that. I'm still working on patching my own box. Woe!
George says: I wouldn't slather the thermal compound. Putting an excessive amount on there is just as bad as not having enough on there. If all the fans aren't turning on, there's a possibility of this being a power supply issue.
George: Good! If this is a desktop, I'd swap the power from a working one fan to this 'faulty' fan and see if they swap working. You'll then discover if you just have a bum fan ( and it has nothing to do with your computer ) or if you actually might have something wrong with your power supply.
If you are 'brave' you can hook up a multimeter to your power supply and see if it is defiantly the problem. This was how we ended up diagnosing the lab computer's power supply as 'screwed' and not assembly error (me).
It's not even getting to that point - 3 seconds of power wasn't an exaggeration, but the actual amount of time I have power. It doesn't really even get the chance to start to boot up.
This sounds similar to something that happened to me a few years ago. Twice. If you try it again a few hours later, does it run normally for about 15 minutes and then turn off again?
Me: It shut off by itself, and now the power button is blinking yellow. Tech Support: It does not do that. Me: I'm looking at it now. It's blinking yellow. Tech Support: I'm sorry sir, It does not do that.
I later found out the power button does blink amber when things go wrong. I ended up getting a new motherboard and a new power supply.
Interesting how only one fan has failed. It sounds like everything else is getting power, at least for a brief blip. I'd have to guess you either have a chip that's cooked off and the boot isn't completing or your power supply is half to three-quarters dead.
I know it can cost, but taking it to a pro, even the Geek Squad, for a diagnosis can save you a lot of time and prevent the purchase of replacement parts you may not need.
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I don't have a lot of great advice beyond that. I'm still working on patching my own box. Woe!
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If this is a desktop, I'd swap the power from a working
one fan to this 'faulty' fan and see if they swap working. You'll then discover if you just have a bum fan ( and it has nothing to do
with your computer ) or if you actually might have
something wrong with your power supply.
If you are 'brave' you can hook up a multimeter to your
power supply and see if it is defiantly the problem.
This was how we ended up diagnosing the lab computer's
power supply as 'screwed' and not assembly error (me).
Reply
Reply
Reply
Reply
Me: It shut off by itself, and now the power button is blinking yellow.
Tech Support: It does not do that.
Me: I'm looking at it now. It's blinking yellow.
Tech Support: I'm sorry sir, It does not do that.
I later found out the power button does blink amber when things go wrong. I ended up getting a new motherboard and a new power supply.
I hope whatever it is, it's a simple fix.
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I know it can cost, but taking it to a pro, even the Geek Squad, for a diagnosis can save you a lot of time and prevent the purchase of replacement parts you may not need.
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