Question about Bestec (ATX-250-12E) 250-Watt Power Supply

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How to set up my bestec power supply in me emachines computer

The power supply broke i got a new one but do not know how to set it up

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Well plug in main power install it 4 screws litte 4 pin on main mobo yell black ones red 4 pin for hard drive cd rom ok

Posted on Oct 09, 2008

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2 Answers

My computer shuts down


problem with you either capacitors on motherboard or capasitors in smps, 80 % it becouse of capacitors in smps, it's not providing sufficient power to motherboard.

Feb 26, 2011 | E-Machines eMachines Desktop PC

2 Answers

Emachines E4252 shutting down on boot up


This could easily be a power problem. You can check for overheating, but I would recommend not attempting to turn on the computer again, until you test the power supply.

eMachines (and gateway) have a long history of using Bestec Power Supplies (recognizable for their bright yellow warning label). These are highly defective and can result in the frying of your motherboard and/or processor.

I would recommend checking what kind of power supply you have. If it is a Bestec, it is most likely defective (or will become defective soon). Based solely on that, I would replace it. In addition, it may have already damaged your processor (causing it to get too hot easily) or your motherboard. Its rough, but better you fix it now, as opposed to replacing the motherboard or processor, just to have the power supply fry the new one (the Bestec PSUs still look like they function when they have failed, but send completely unreliable volts to your board).

If you need assistance finding new parts, I can direct you to cost effective alternatives.

May 09, 2010 | Gateway Computers & Internet

2 Answers

I'm trying to "rebuild" an old desktop computer of mine just to play and learn new things. It's an Emachines T2625 . Everything is in working order, but the integrated video seems to have went bad... I...


just start over and buy a motherboard and processor and memory and plug your stuff into it. you will need an operating system because the emachines operating system only workes with an emachines motherboard. emachines is the cheap brand from gateway and i have had nothing but trouble with those machines. Hope this helps and good luck

May 02, 2010 | E-Machines eMachines Desktop PC

2 Answers

I have an emachine t5026 that won't turn on. It sounds like a car tying to start and the lights on the front flash as does the light on the mouse, but it won't start.


I have an emachine t5026 that won't turn on. It sounds like a car tying to start and the lights on the front flash as does the light on the mouse, but it won't start

Mar 29, 2010 | E-Machines Emachine T5026 power supply **...

2 Answers

The PSU bestec atx-250-12e is dead, there is an easy fix for it


Hi,
You can find the same psu at ebay with free shipping.

http://itemlistings.ebay.com/sdcsrp?fl=360131455504&product=bestec+atx-250-12e&sconstraints=PriceMin.Value%3D23.00%26PriceMax.Value%3D45.59

Aug 20, 2009 | Gateway Emachine Bestec ATX-250-12E PS...

1 Answer

New power supply problem


One of the reasons that this could be is that the power supply doesn't have enough power to power everything. Trying exchanging it for another one that has more watts. If this is an exact replacement as far as the wattage goes, then your problem may lie else where, and you may want to take it to a reputable local computer repair shop for further inspection.

Aug 04, 2008 | E-Machines Bestec ATX-300-12E Rev. D 300w...

2 Answers

My computer won't turn on


most common one is the power supply, should cost about £20 for a replacement and are easy to fit, if you need anyhelp just ask

Aug 01, 2008 | E-Machines Bestec ATX-300-12E Rev. D 300w...

7 Answers

Motherboard taken out by eMachines Bestec power supply


I have not identified the specific components on the motherboard that blow, but I can tell you the defect in the Bestec supply. The +5 VSB, which is the voltage that is on at all times, loses regulation and climbs to 8-11 volts. I believe this "higher than the required" +5V takes out the components on the motherboard involved with the computer/power supply "turn-on" circuitry. The "on" button on the eMachines front panel no longer turns the motherboard on because the "kept alive when the main power is off circuits" - which allow the on/off button to do its job of turning on the machine - no longer work.
Test your Bestec power supply by plugging it in the wall socket and have it not connected to anything. Read the voltage between the purple wire and any black wire. If you see +5.0V, then this wasn't your problem. If, like it did on mine, is closer to between 8, and 11 V, this is what took out the motherboard.

Jan 06, 2008 | Intel D845GVSR Motherboard

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