Question about Computers & Internet

1 Answer

No Power of a Compaq Presario Computer

Power supply is Bestec with 250W Max output, green light on the back flashes when plugged into the motherboard but is solid when mother board plug is removed. 12 Volt is not to problem. System will not power up, tried the power source on another system no power still. Mother board has been replaced. Tried other power supplies and still nothing happens. Any suggestions?

Posted by on

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    Hot-Shot:

    An expert who has answered 20 questions.

    Corporal:

    An expert that hasĀ over 10 points.

    Mayor:

    An expert whose answer gotĀ voted for 2 times.

  • Expert
  • 50 Answers

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

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

2 Answers

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.

Jun 15, 2011 | HP Bestec ATX-250-12ZD 250w HP Pavillion...

1 Answer

I purchased a 250W Bestec Power Supply. When I plugged it in to the motherboard the light on the power supply just blinks and the computer does not turn on. I have another power supply that is the same...


did you check the switch on the back of the power supply? and is it under rated for your computer? 250 watts is much lower than what most computers use now days. the avg is 450 watt.

Jan 29, 2011 | Bestec (ATX-250-12E) 250-Watt Power Supply

1 Answer

MY COMPUTERS front and back green light is flashing green


you can remove your side cover,and unplug everything from your power supply. then if you plug in your computer and the light still flashes it's your power supply. If not it's something that it is powering. Most likely it's your motherboard. I had this happen to me when there was a power surge/ outage and my computer wasn't even on.

Aug 06, 2010 | Compaq Presario sr1111nx 2.53GHz Celeron...

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

Compaq dead after power company shutdown period


Sounds like a blown fuse in the psu, replace the unit and you should be good to go.

Nov 30, 2008 | HP ATX-250-12Z, ATX-250-12Z Rev. H1, HP...

1 Answer

Power supply light flashing.


Computer power supplys are modular replacement fixes. Better to replace the whole thing then try to repair.

Sep 24, 2008 | HP Bestec ATX-250-12ZD 250w HP Pavillion...

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

1 Answer

System will not power up


Here is a Compaq document will walk you thorough a fairly lengthy procedure that should solve your problem. Here is the link: http://h10025.www1.hp.com/ewfrf/wc/document?docname=bph06788&lc=en&cc=us&dlc=en&product=431080&query=presario%20sr1220&dest_page=product#N561 Let us know how this turns out or if you need any additional assistance.

Jan 02, 2007 | HP Compaq Presario SR1220NX (PJ517AAR) PC...

Not finding what you are looking for?
Computers & Internet Logo

Related Topics:

340 people viewed this question

Ask a Question

Usually answered in minutes!

Top Computers & Internet Experts

Les Dickinson
Les Dickinson

Level 3 Expert

18384 Answers

kakima

Level 3 Expert

102366 Answers

David Payne
David Payne

Level 3 Expert

14161 Answers

Are you a Computer and Internet Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...