20 Most Recent HP ATX-300-12Z (ATX30012ZBD) 300-Watt Power Supply Questions & Answers


If the power box is bad, The computer will not come on. if you only get a green light, you would need to start with replaceing the power box, if you get a new one and the same thing happens, then the mother board is bad too.

HP ATX-300-12Z... | Answered on May 20, 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

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

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

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

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 - Why try to repair one.

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


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

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


Test all leads that attach to your hard drive IDE,SATA and power leads

the leads from your (motherboard to your hard drive) make sure they have secure dust free connections and are not faulty or just replace them they might be faulty


if its a 40 pin flat ribbon type it will be the first to fail


make sure all leads that are attached to your drives dvd\cd 3 1/2 inch floppy have secure connections and are not faulty


even something as small as an electrical fan and its lead can cause you problems

computers need all electrical power and data to continue through every working device and to have an end so any faulty leads will end up with a computer error


make sure your graphics card is securely seated with no dust built up or in the socket

if you remove your graphics check the socket to make sure its dust free


restart your computer then reinstall it this should activate found new hardware wizard


hope this helps

HP ATX-300-12Z... | Answered on Jul 06, 2012


Here is a tutorial on how to replace power supplies.

http://www.hardwaresecrets.com/article/362

HP ATX-300-12Z... | Answered on Apr 10, 2012


Close examination of your power supply may reveal if the psu is bad.

When the power supply is plug in ac socket the green indicator led inside the motherboard will lit steady green. See if by turning on the cpu you will see some sparks in the power supply connector attached to the motherboard. This is a clear indication of a bad or shorted psu.

You can also smell if there is a burning inside the psu.

See if the fan inside the psu is working if not then its a clear indication of a bad psu.

Using a multimeter if you have one measure the dc voltage coming from the supply connector. Insert the black probe to one of the black wires in the connector. And the red probe to the red wire in the connector. the reading should be +12VDC. Put the red probe to the red wire and it should read +5VDC. Any readings below this, means bad psu.

Measure also the output voltage when there is a load in the power supply. Connect a CD-ROM drive or hardisk and measure again the voltage. Dropping of voltage when put some loads is a clear indication of a bad power supply unit (psu).

I hope this will help you.
Thank you for using Fixya!

HP ATX-300-12Z... | Answered on Feb 18, 2012


Whilst power supplies can be repaired the cost usually is more than the price of a new one.

Luckily most suppliers now use a standard supply that can be replaced on moments.

remove the supply and take it to a local reputable computer store (smaller stores tend to be more helpful)

Ask for a replacement that is higher in capacity than the one you are going to replace

Yours is a 300w so ask for at least a 400w

HP ATX-300-12Z... | Answered on Nov 03, 2011


You dont have to replace it with the exact one...just shop around and find a 300 watt ATX power supply. You can find a few good deals around the internet. (tigerdirect.com...newegg.com....etc)

HP ATX-300-12Z... | Answered on Jul 30, 2011


YOU NEED TO BUY IT OTHERWISE YOU NEED A LOT OF RESOURCES.

HP ATX-300-12Z... | Answered on Mar 30, 2011


It sounds like the power has failed or is failing. This link will take you to the HP site: http://h10025.www1.hp.com/ewfrf/wc/document?docname=bph06788&cc=us&dlc=en&lc=en&jumpid=reg_R1002_USEN#bph06788_section_2
You can try to un-plug the main power connection to the motherboard and then re-connect it. BE SURE THAT THE COMPUTER POWER CORD IS DISCONNECTED! If that fails, you will need to replace the power supply as indicated on the HP site. The last one I bought was about $35.00.
Good luck and please let me know how it works out for you.
~Spoem

HP ATX-300-12Z... | Answered on Mar 26, 2011


cnetdownload.com on the home page you should see the download software finder under that there will be a list platform, category sub category price from the category drop down list select drivers then from the price drop down list select free or which ever applies to your need hope this helps also you might http://download.cnet.com/drivermax/3000-18513_4-10572602.html
Behind a slick interface, this program backs up all your PC's drivers in case you mess up something fierce. From registration to implementation, DriverMax works fast, runs smooth, and does even more than mere backing up.
When you run the app, it asks you if you'd like to run the trial version or apply for a registration key. The key is free, though, requiring only an e-mail address and your name. Once you've entered the key, the program interface appears, with slick button navigation: Driver Operations, Updates and Identification, and Popular Hardware. Mousing over one reveals more choices, so you can export your drivers, import drivers, or view an installed drivers report.
Updates lets you update both the DriverMax software and the drivers themselves, although as of this writing there is a warning label on the DriverMax Web site that downloads are not currently functioning. The program can also identify unknown hardware and point you in the direction of popular hardware options, pointing users to a compilation of statistics about different video cards and processors.
The strongest features, though, relate to driver backup and reinstalls. They function smoothly, offering users the option to back up all drivers or compile a customized list. Reinstalling an "accidentally" deleted driver was as pain-free as could be. As of the version 4.4 update, the DriverMax Agent, which automatically scans for driver updates, works in Windows XP and Windows Vista 32-bit, but not 64-bit. This is a great utility tool that should appeal to newbies, advanced hackers, and everybody in between. Hope this helps

HP ATX-300-12Z... | Answered on Mar 22, 2011


There are lots of ATX power supplies on the market. You do not need to use a HP 300 watt power supply. Just purchase one that suit your requirements - 300 watt or more. These power supplies have standard mounting holes.

HP ATX-300-12Z... | Answered on Mar 10, 2011


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

One bad lead can cause a computer to continue on a cycle or to shutdown or fail to detect/ boot up a computer hard drive

Test all leads that attach to your hard drive including electrical extensions,IDE,SATA

the leads from your ((motherboard to your hard drive)) make sure they have a secure connection and are not faulty or just replace them there probably old and faulty
make sure all leads that are attached to your drives dvd\cd 3 1/2 inch floppy have secure connections and are not faulty even the electrical extensions or just replace them they are probably old and faulty a computer needs its connections to have an end so any faulty leads will end up with a computer error

hope this will help
don

HP ATX-300-12Z... | Answered on Feb 27, 2011


One bad lead can cause a computer to continue on a cycle or to shutdown or fail to detect your hard drive

Test all leads that attach to your hard drive including electrical extensions,IDE,SATA

the leads from your ((motherboard to your hard drive)) make sure they have a secure connection and are not faulty or just replace them there probably old and faulty
make sure all leads that are attached to your drives dvd\cd 3 1/2 inch floppy have secure connections and are not faulty even the electic extensions or just replace them they are probably old and faulty a computer needs its connections to have an end so any faulty leads will end up with a computer error

hope this helps
don

HP ATX-300-12Z... | Answered on Feb 12, 2011

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