Question about System Power Supplies

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Computer wont start

The computer would not power up. It was on the night before. The next day it wouldn't start.

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  • islandersent Nov 10, 2008

    That fixed it. Thanks. I appreciate your help.

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  • System Power... Master
  • 1,314 Answers

The most likely solution is the power supply has failed. This is a common occurence. You just need to replace the power supply.

Thanks and please take a moment to rate as fixya.

Posted on Nov 08, 2008

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Power light on computer flashes..tried the trouble shooting advice w no results. Bestec power supply model atx 250-12z. Unplugged computer to clean and now wont turn on..No fan no nothing..Just a green...


If you didn't accidentally unplug the four pin connector near the CPU, you need to replace the power supply. This is actually a fairly common occurrence with the cheap ATX power supplies being tossed into systems these days.

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Hi: no power from supply opened box and checked fuse - its ok! The computer had a virus and that was fixed restarted computer and it worked ok, the next day pressed start button and nothing happened....


Test your PSU or replace it if your power supply units fan is not working your PSU is faulty

One bad lead can cause a computer to continue on a cycle or to shutdown or fail to detect/ boot up a computer hard drive

Test all leads that attach to your hard drive including electrical extensions,IDE,SATA

the leads from your ((motherboard to your hard drive)) make sure they have a secure connection and are not faulty or just replace them there probably old and faulty
make sure all leads that are attached to your drives dvd\cd 3 1/2 inch floppy have secure connections and are not faulty even the electrical extensions or just replace them they are probably old and faulty a computer needs its connections to have an end so any faulty leads will end up with a computer error

hope this helps

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I have a Dell Dimension E510 and have had this problem in the past. My dell has been shut down for a few weeks and wouldn't power on. maybe a month later, i randomly checked it after being unplugged the...


Some power supplies have an independent switch to turn on the power supply before you can power up the computer from the front. Does yours have a switch on the back?

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1 Answer

Dell Dimension 8300 power light flashes amber. Watched a move on it last night from an external hard drive, after which i shut down the computer eg start, turn off comp, turn off. It carried on installing...


Hi damos_turbo,

I wish I better news for you, but your going to be going into PC hell. What the amber light is telling you is that something on inside the case is bad. It could be the CPU, or the motherboard, or the PSU.
I would give you my normal advice with dealing with MO's but with the Dell 8300, it has a life of it's own.

Determining was is broken is like detective work. What I do, is take everything off the board to start. Then add the minimum to start a board to see if it will start. That's one drive (cd or otherwise) the CPU, and one bank of memory. (that's not a required eliminate, but it helps avoid beep codes) Also, if your going to load a ide drive, make sure you set your pin setting correctly on it. Now, you should get the power supply on, and the cpu. If those don't power up, it's then either one of the five elements. The CPU, Power supply, Ram, Drive, or the motherboard. The next step is to replace each one of the first four to see if you get any change. If no change, then I usually get another board that I can test the first four, and make sure that they work. After that, then I say you have a dead Board. As I said in the beginning, PC hell is here.

I sometimes just advise people to get a new computer, If you like dell's they have new ones for $300.00 to not only match what you have, but will have a whole lot more speed.

Good Luck and don't forget to leave a rating.
Thanks
Mark

Dec 10, 2009 | Dell System Power Supplies

1 Answer

With destop wont turn on


Robert was right make sure your computer is unplug from the power strip. now check the power supply cable to the mother board, then check the power cable to the harddrive, and then the DVD.once you put the power cable back into the computer you should get the power supply fan should come on, and the cpu fan should come on.

Next once you hit the on/off switch and green light should come on.

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Acer aspire computer with liteon power supply PY300B00153201AA6E


power supplies are easy to replace. usually 4 screws. open the pc. remove the screws and unplug it from the motherboard. a replacement costs 40-60 dollars. plug it into the same place(s) you unplugged the original pwr supply. replace the screws. replace the cover and thats it.

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T2984


Thats a good thought. Replace them now before they decide to self-destruct.

Like I said, they aren't "bad" computers. They generally use Intel mainboards, although I've stumbled across some "odd" ones before.

One thing you will notice is the original power supplies don't have cooling fans (some do, and some don't). I think that is what the main problem is with them - heat.

Get yourself basic Antec power supplies (they can range from $30 and up) and you shouldn't have anymore issues.

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Computer won't stay powered on


What type of computer is it? Manufacture/partnumber...Your associates are incorrect, it is actually better to leave it on because turning it on and off is harder on a computer. This also depends upon your environment (dust, dirt, moisture, etc.) Companies all around the world leave computer systems up for years, only to shut them down when a part needs repalaced or windows requires a reboot.

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1 Answer

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power supply is probably shot and you are feeding a voltage way over what is needed. I have a dell that refused to operate one day. I went to www dot affordablesurplus dot com and found a 350 watt power supply with all the RIGHT plugs. Never had a problem since.

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