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Hello, my bestec 250w smps is not working.can any one help me repair the faulty one .I am a qualified engineer.

Amps power supply for bell based desktop

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  • 269 Answers

It is likely cheaper/easier to replace the power supply. Look for a replacement through Amazon or eBay. For example: http://www.ebay.com/itm/170927157573

Posted on Nov 08, 2014

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Posted on Jan 02, 2017

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SDZAKKMF
  • 50 Answers

SOURCE: No Power of a Compaq Presario Computer

Make sure that the power button is conected to the right prongs on the mother board. On the writing next to the prongs it should say power.

Posted on Feb 24, 2008

Bubbabear64
  • 2794 Answers

SOURCE: New Bestec ATX 300 12E power supply showing no signs of working.

It's more than likely the motherboard needs replacement.

Posted on Jul 04, 2008

tbirdfan1
  • 3051 Answers

SOURCE: 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

Posted on Aug 26, 2008

pravinbhavsa
  • 348 Answers

SOURCE: PC smps power supply problem

ok you open the pcb check the fuse first then replace it if faulty if it burns again then check 4 diodes then see if 200v big capacitor is expanded or not if so then replace it if not then check diodes after transformer if short then replace it

Posted on Nov 21, 2008

  • 1 Answer

SOURCE: Flashing Green Light on Power BESTEC Power Supply

This is an easy fix so here you go nice and simple:

Problem: Your motherboard circuit has been cut.

Causes: Power disconnected during operation. Power outage or short in the surge protector.

Symptoms: Flashing green light on both motherboard and power supply. System will not power on.

Solution:

Step 1: Ensure that both the power supply and the motherboard lights are flashing green, not solid or off.
Step 2: While the power is on, disconnect the power supply from the motherboard. This connection is the largest of the connections and should be listed as the 'P1' or 'Primary' power connection.

Step 3: Wait until the green light on the motherboard stops flashing and check to ensure that the green light on the power supply is now solid. If it is not solid, disconnect the power to the power supply and wait until the light turns off completely. Then reconnect, it should be solid now.

Step 4: While the power is on, reconnect the P1 connection to the motherboard and you should now see that the light on the motherboard is solid.

Step 5: Power on your PC. The problem should not persist.

Warnings: If the power supply light remains flashing after you have restored power to it while it is disconnected from the motherboard, it may be a system failure in the power supply itself requiring replacement. Always be careful when working with an active or live power machine.

I hope this helped! Good luck!

Posted on Mar 01, 2009

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1 Answer

Hello, my bestec 250w smps is not working.can any one help me repair the faulty one .I am a qualified engineer.


It is unlikely you can repair your power supply for less than a new one unless the problem is simply an internal fuse. Check Amazon, or eBay for possible replacements: eg. http://www.ebay.com/itm/170927157573

Nov 07, 2014 | Computers & Internet

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

1 Answer

No power supply power out, ps fan not coming on, fuse is good


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

Dec 30, 2010 | Gateway Emachine Bestec ATX-250-12E PS...

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.

Jul 06, 2010 | Gateway Emachine Bestec ATX-250-12E PS...

1 Answer

How to use ATX-250-12z SMPS with 24 pin


Chances are that 250w power supply is not going to power a motherboard with a 24 pin connector, but you can try.
You will need to purchase a 20 to 24 pin adapter cable.
Google Search Terms: 20 to 24 pin adapter

Oct 27, 2009 | Gateway Emachine Bestec ATX-250-12E PS...

1 Answer

Do not start


First remove smps power suply unit box from cpu.
Then ground pin and check is it on you have to ground 4-5 pin blck and green.
Then if it is on then smps is ok.then pull cmos cell from motherbord for 10 minutes make sure cmos cell give voltage.Remove pci cards from pci slot is any.
connect ATX power supply to motherbord then check.
But if smps is not turn on then it has some issue.
Change fuse of smps if still not on then you have repair it or change.
Let me know if you need further assistance.
Thanks.

Oct 26, 2009 | Gateway Emachine Bestec ATX-250-12E PS...

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