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Need to replace power supply on emachine 3502

Will a reg power supply work the new one is a 450 watt

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  • calostone Dec 21, 2008

    thank you for your help :-)

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An ATX power supply should work. 450 watt should be fine unless you are running high end graphic cards.

Posted on Dec 21, 2008

  • Roy Lonsinger
    Roy Lonsinger Dec 21, 2008

    You are most welcome. Good luck.

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Power supply


Any 450 Watt SMPS power supply is ok. Zebronic or Mercury retails around Rs.450 to 500. No need of costlier power supply like Corsair etc.

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CPU Fan does not work!


A 200-watt power supply is kind of strange to see. You typically don't see a power supply below 450. If you installed any new hardware (which it sounds like you did) you should check the paperwork and see how much power they each need and make sure your total power requirements for EVERYTHING in your computer doesn't exceed 200 watts. If your fan isn't getting enough power, that would completely explain why it isn't working.

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Have a e machine fan runs but connect monitor to another computer it works. smell a burning smell when turn on pc. Got it to come up once by unplug power hold on button 45 seconds plug in and turn on came...


The smell is the Power Supply.

Typical example of a Power Supply not installed in a desktop computer,

http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=4435072&CatId=106

[ NOTE*
This is not an example of a direct replacement Power Supply for your computer. I would need to know the Model Number of your eMachines to give exact information ]

Bad Power Supply. Weak voltage power rail. (Or rails. There are three main voltage power rails for a Power Supply used in an eMachines desktop computer)

Enough power to light LED lights, and apparently spin fans, but Not enough to turn the Processor on.

Watts = Voltage times Amperage.
One measurement used for measuring the maximum available power output, of a desktop Power Supply, (SMPS. Switched-Mode Power Supply), is to state the Maximum Wattage available.

Typical maximum Wattage available for a typical eMachines Power Supply, usually averages from 150 to 300Watts.

1) ALL of the LED lights on at one time, will use less than 1 Watt of power.

2) EACH fan uses 2 to 3 Watts of power.

3) A typical Processor can use 51 to 125 Watts of power.
Depends on what Processor it is.

(Note* Intel Pentium II processors use less than 51 Watts)

Solution is to replace the Power Supply.
This isn't as hard as it 'sounds', if you have never performed this procedure before.
I know you can do it.

1) http://www.fonerbooks.com/r_power.htm

2) http://www.videojug.com/film/how-to-install-or-change-my-computers-power-supply

3) http://computer.howstuffworks.com/power-supply.htm

If you need guidance in replacing the Power Supply in a step by step for your eMachines, please post in a Comment. (Believe upper right of your page)

Should you also desire recommendations to compare for a Power Supply, I would be happy to provide them.

Regards,
joecoolvette

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1 Answer

Regarding 250W SMPS


250 watt is low under any circumstances, I'd upgrade atleast to a 450 or higher, around 650watt to be extra safe.

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2 Answers

Won't start


If you don't hear the fans coming on you'll need to replace thge power supply. You can go to best buy or any computer store or order one online and get at least a 450 watt power supply, more reliability.
Mark

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1 Answer

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You can replace it with a 500 watt if you want to. 300 watt is a good watt. But if I could make a recommendation I would say go to the 450 just incase you ever want to upgrade your video card or anything like that. IF this helped please rate

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Apparently this model has a bad motherboard, which manifests as a power warning and eventually a refusal to boot up. You can replace the power supply (as far as I know, any generic one 250-watt or better will work) but it's unlikely to help. You can buy a new motherboard (and new power supply, if you want to) direct from eMachines, but it's also likely to fail pretty soon. Your best bet is to get a new computer (NOT an eMachines one) and put your hard drive in as a slave so you can get your data off.

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yo dawg just do like buy a new connector and stuff you know what i mean dawg

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A new power supply will fix your problem, and when the fuse blows do not replace it. It blows to protect your computer. please replace with a new power supply.

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