Question about HP System Power Supplies

3 Answers

How can i determine if my power supply is dead?

My hp tower , pavillion a545c wont power up, is there a place i can get a schematic showing wher to test for power out of the power supply?

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  • travis m Jan 20, 2009

    the power supply is a hipro hp-d2537f3r

  • travis m Jan 22, 2009

    Thank you ****

  • Anonymous Feb 20, 2009

    I have a LED green light that is flashing quickly and it has a new CMOS battery. and it will not power up. I am going to change the power supply.

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You can see the pinouts for the power supply here.

Posted on Jan 20, 2009

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Easy way to tell check to see if the motherboard light is on or pull that power pin lose and check power across the pins

Posted on Jan 14, 2012

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Ebay lists dozens of computer power supply testers.
Get one with the LCD display which is much more accurate than light bulbs.
You should't be paying over $20 for one including shipping.
Watch out for the $5 ones that have $15 shipping.
Have a nice day.

Posted on Sep 23, 2012

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1 Answer

Connect power supply to mother board


It helps to remove the motherboard to go on power supply connector, and then turns it back on the system board

Apr 18, 2013 | HP Bestec ATX-250-12ZD 250w HP Pavillion...

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 am looking for a schematic for a Dell Optiplex GX280 power supply. The supply is model HP-U2106F3.


I just replaced my GX280 power supply (mini-tower) with the following 400W for $30.

http://www.cputopia.com/hp-400w-dell-optiplex-gx280-mini-tower.html

The only place I can think you will find an actual schematic for the PSU is from the manufacturer.

Feb 13, 2011 | Hi-Pro Refurbished HIPRO POWER SUPPLY FOR...

1 Answer

I have an hp pavilian atx-250-12z and the tower itself will turn on and the mouse to will turn on but the monitor gets no signal and the keyboard will not turn as well..I have unplugged the cpu while...


Whom ever told you too: "Unplug the cpu while holding down the power button".

Is telling you something that can "seriously damage" your cpu and computer.

Or did you mean "PSU" if so there is a particular format to do a Power supply check.
For the proper way use this link: http://h10025.www1.hp.com/ewfrf/wc/document?docname=bph06788&lc=en&cc=us&product=405227&dlc=en&lang=en#N207

Also many other things can cause the problems your having. Could be your motherboard too.

If this does not work, post again be sure to include HP Pavillion Model number and Operating System (i.e. XP, 7 or Vista) that way we can help pin point your system needs. Also have you done any internal repairs lately? Recheck all your connections too.

If you find this helpful please vote.

Oct 07, 2010 | HP Bestec ATX-250-12ZD 250w HP Pavillion...

1 Answer

Power will not stay on


Hi,
PSUs don't last forever, 3 / 4 years they are dead or going.
use a digital muti-metre to test the Molex connections
should be 12volts, 5volts, and 3.5 volts for motherboard conns.

or with E.S.D. kit Replace the PSU, very quick and easy job.

15 minute job.

http://www.rapidonline.com/Tools-Fasteners-Production-Equipment/Service-Aids/Antistatic-Products/ESD-field-service-kit/72665


http://www.amazon.com/300watt-Long-Computer-Power-Supply/dp/B00006B8DG

Hope this helps
Regards
Richard.

Apr 29, 2009 | HP Bestec ATX-250-12ZD 250w HP Pavillion...

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...

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