Question about E-Machines Bestec ATX-300-12E Rev. D 300w E-Machine GTW Power Supply Part 100929 (ATX30012E) Power Supply

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POWER SUPPLY FOR E-MACHINE

I ORDERED A REPLACEMENT POWER SUPPLY. MY ATX-300 12E REV. D FRIED. THE ONE SENT TO ME IS A ATX300-12EB3 REV S2. THE REPLACEMENT HAS ALMOST THE SAME WIRES BUT A FEW MORE AND WHITE ONES THAT MY ORIGIONAL DOES NOT HAVE. AS AN ELECTRICIAN, I TRIED TO MAKE IT WORK BUT NOTHING HAPPENS EXCEPT THE IND LIGHT ON THE PS COMES ON WHEN PLUGGED IN. I WAS SENT ABSOLUTELY NOTHING AS FAR AS WIRING INFO. OR HOW TO SWITCH OVER. DOES SUCH INFO EXIST OR WILL THIS NOT WORK. I HAVE MY OLD CONNECTOR TO FIT THE MOTHER BOARD. JUST NEED TO KNOW HOW TO ADAPT FROM ONE TO THE OTHER. HOW DO I FIND THIS INFORMATION??? THANKS, DONNA

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  • dkbaker1961 Aug 14, 2008

    I need to know how to wire it since there is a difference in quantity and slight difference in color. Unhooking things will not aid in this!! Thanks anyway!!

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Disconnect CDROM,DVDROM or any player for that matter and of course any other peripheral attached so as you remain with only monitor ,mother-board,hard disk connected to the power supply.if it doesn't work repair the faulty supply.

Posted on Aug 13, 2008

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There is any different between this mother board p/n 51884327 and p/n 51882625


Take the power supply to a retailer or computer shop in your local area. Pretty standard from what I have found out.
Bestec ATX 300 12Z Rev DDR Replacement Power Supply HP 5188 2625 Have a great day.

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Most computer testing facilities will test your current power supply for free. A replacement is very inexpensive to replace. Bestbuy, MicroCenter, small computer shops and buy replacemnent from Amazon.com, newegg.com.. Just make sure you have the correct information for your replacement. The model number on the power supply would be your best bet in most cases. Good luck and have a great day. I buy power supplies as low as $15 dollars Generic

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1 Answer

Bestec power supply model ATX-300-12Z Rev BD green indicating light flashes on off when plugged in.


Most computer testing facilities will test your current power supply for free. A replacement is very inexpensive to replace. Bestbuy, MicroCenter, small computer shops and buy replacemnent from Amazon.com, newegg.com.. Just make sure you have the correct information for your replacement. The model number on the power supply would be your best bet in most cases. Good luck and have a great day. I buy power supplies as low as $15 dollars Generic

Jan 06, 2011 | HP ATX-300-12Z, ATX-300-12Z Rev. CDR, HP...

1 Answer

Bestec ATX-300-12E Rev. D 300w E-Machine GTW Power Supply Part 100929 (ATX30012E) Power Supply: Do you have to use a emachine power supply...


No it is not neccassary to use a E-machine power supply if your previous one has become faulty. You can use any one as long as it has the required power rating.

May 18, 2010 | E-Machines Bestec ATX-300-12E Rev. D 300w...

2 Answers

Please Help! I THINK I have a bad power supply (a bestec atx-300-12eb3 rev s2 from a Sony Vaio VGC-RB30). Power will no longer come on at all, however I do have a blinking green light on the back of the...


ok first you disconnect the power supply from motherboard then measure the output voltage if it is ok then there is two wires green and black at o/p of power supply short green and black and see fan is rotating or not if rotating then power supply is ok if not then open the power supply check ac voltage in the pcb if present then check dc voltage after bridge rectifier and ckeck part by part

Feb 23, 2010 | E-Machines Bestec ATX-300-12E Rev. D 300w...

1 Answer

Can an ATX-300-12E be used in place of an


I think it wont be a problem as long as both pwoer supplies are of same type e.g both supplies are for P4 sytems

Feb 11, 2010 | E-Machines Bestec ATX-300-12E Rev. D 300w...

1 Answer

Bestec atx-250-12z rev d hp model 5187-1098 pc will not start up when pushing button on front of machine green led on back of p/s flashes with power cord plugged in. does this indicate a p/s failure?


I have already replaced mant Bestec ATX-250-12E power supplies because they have an internal failure. Consider yourself lucky if the thing doesn't power up your computer because it has a problem of imposing the +12 volt line onto the +5 Volt line then blowing out the mother board. Sometimes you aren't so lucky because once the damage is done then it is to late to just simply replace that piece of junk. I was lucky with my daughters E-Machine because if she tried pressing the start switch on the front of her computer it would sometimes come on and sometimes not. She just mentioned this to me and I immediately replaced that Bostec ATX-250-12E before it could do any damage to her computer. If anyone has an older E-Machine or an older Gateway machine then it would be a good idea to see if it uses that Bostec-ATX-250- 12E. If it does then go order another power supply, anything but a Bostec, and instead of a 250 watt order a 300 watt or better. I hope that this has helped those that might have this problem before it destroyes *********** boards. Marty

Mar 23, 2009 | Gateway Emachine Bestec ATX-250-12E PS...

2 Answers

Upgrade for Bestec ATX 300 12E


Hipro- HP-P3527F3W
is the replacement for Bestec 300W

Dec 11, 2008 | E-Machines Bestec ATX-300-12E Rev. D 300w...

1 Answer

Power Supply Bestec ATX-300-12EB3- Rev: s4(S) 300-watts


yes if you can get the side plates unscrewed and the backplate plate uncrewed then the sides should lift off of the power supply now if you look at the board where all of the wires are it should be on the side by the power cord they are pretty small and some of them are soldered in so be carefull ok keep me posted ook best regards mike

Aug 23, 2008 | E-Machines Bestec ATX-300-12E Rev. D 300w...

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