20 Most Recent HP ATX-300-12Z, ATX-300-12Z Rev. CDR, HP P/N: 5188-2625, Genuine Bestec 300W PS2 Replacement Power Supp... (ATX30012ZREVCDR) Power Supply Questions & Answers


Hi. NO, *********** board is not fried. I am not sure what the problem is but I do know how to fix it. It is usually casued by power outages (even if you have UPS supply).

1. TAKE OUT THE ELECTRICITY LEAD TO THE COMPUTER. Look inside the computer and find the bunch of wires coming from the power supply unit (the box thing at the top with the fan and all those colouted wires!).

2. Find where these wires run into a plastic connector and plug into the mother board. Unplug it.

3. Now plug the electicity lead back into the computer. The light should now stay ON.

4. Plug in the connector again... and boot up. Leave it run a while to convince it!

5. Repeat this process if it does not work first time.

This should fix your problem . It works for me when I get this problem.

Friend in Spain

HP ATX-300-12Z,... | Answered on Oct 13, 2014


Not necessarily. The green light usually just signifies power to the power supply. Amazon sells a cheap power supply tester that can verify everything on a power supply from old to new.

HP ATX-300-12Z,... | Answered on Aug 21, 2014


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

If you need further help, I’m available over the phone at https://www.6ya.com/expert/william_02fc2766c1e13b73

HP ATX-300-12Z,... | Answered on May 13, 2014


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 replacement 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

If you need further help, I’m available over the phone at https://www.6ya.com/expert/william_02fc2766c1e13b73

HP ATX-300-12Z,... | Answered on May 13, 2014


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

If you need further help, I’m available over the phone at https://www.6ya.com/expert/william_02fc2766c1e13b73

HP ATX-300-12Z,... | Answered on May 13, 2014


The power supply is very inexpensive and can most likely be bought from any of your computer retailers, Amazon - Just make sure to confirm the right model type of power supply. BEST to have it tested before replacing it. To make sure that is the issue.. Many computer shops will test for free.

If you need further help, I’m available over the phone at https://www.6ya.com/expert/william_02fc2766c1e13b73

HP ATX-300-12Z,... | Answered on May 13, 2014


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.

If you need further help, I’m available over the phone at https://www.6ya.com/expert/william_02fc2766c1e13b73

HP ATX-300-12Z,... | Answered on May 13, 2014


Replacing the Power Supply in HP Pavilion p6000 p6 1000 and p6 2000... This is a common power supply that can be purchased just about any computer retailer - BestBuy, MicroCenter, Amazon.
Very cheaply priced, very functional. Even the generic brands.
Hope this help.. have a great day. OH, make sure you at least match the current power supplies WATTs and it's connection.

If you need further help, I’m available over the phone at https://www.6ya.com/expert/william_02fc2766c1e13b73

HP ATX-300-12Z,... | Answered on May 13, 2014


Replace the power supply or have it tested.
Amazon com bestec atx 300 12z You can get a replacement pretty cheap. Most all power supplies can also be tested - Bestbuys geek squad or a small computer repair shop should have the means to test it.

If you need further help, I’m available over the phone at https://www.6ya.com/expert/william_02fc2766c1e13b73

HP ATX-300-12Z,... | Answered on May 13, 2014


Don't open it. Buy a new one if it's not working. If you touch the wrong thing in there you will die. I'm not kidding.

HP ATX-300-12Z,... | Answered on Aug 14, 2012


you can see it in bottom side of power supply and compare output voltage and power.

HP ATX-300-12Z,... | Answered on Apr 01, 2010


plug your pc directly to your wall outlet and see if it turns on. If it works, then the problem is your power supply. If power supply has a reset button, press it and try again. If pc does not turn on when plugged to wall outlet, then power supply for pc may be out.

HP ATX-300-12Z,... | Answered on Feb 16, 2010


Do yo have a volt meter or an atx psu tester?
you can check voltage to see

If a power supply is bad, your pc will turn off or/and turn on and turn off. As long as your system is running without and shut downs your good.

However if your pc is turing off, I would change it as soon as you can. basically what is happening, when you unplug everything there isn't much of a draw on power so the light remains steady, but when you plug devices in there is a draw and the PSU cannot deliver.

I hope this helps.

HP ATX-300-12Z,... | Answered on Sep 07, 2009


If this is an Atx computer Just unplug it from the external power cord remove the case unplug every thing and remove the screws that hold the power supply in the case. To install just reverse process. If you need more detail let me know.

HP ATX-300-12Z,... | Answered on Jul 10, 2009


it is always written bottom side of laptop... and front side or remove its battery and locate.

HP Computers &... | Answered 5 hours ago

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

21 questions posted

Ask a Question

Usually answered in minutes!

Top HP Computers & Internet Experts

Les Dickinson
Les Dickinson

Level 3 Expert

18429 Answers

Thomas F. Schneider

Level 3 Expert

2715 Answers

Alun Cox

Level 3 Expert

2679 Answers

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

Answer questions

Manuals & User Guides

View Most Popular

HP Computers & Internet

  • HP Computers & Internet

Most Popular Question

open atx power supply

  • Computers & Internet
Loading...