Question about Compaq (480082-001) ( 480082-001 ) Power Supply

3 Answers

Presario S4020wm desktop

Recently the computer will suddenly and randomly shut down, then restart and continue to act this way, cycling on and off. After removing plug from wall and waiting we can restart the computer but soon the same problem will occur. Suspected heat and cleaned all dirt and dust out. Checked cpu fan and PS fan. Played additinal fan on PS and ran all day. Closed up computer and after several hours the problem started again. Suspect PS but not sure. Does anyone have similar problem?

Posted by on

  • 2 more comments 
  • jim73 Sep 06, 2007

    The problem doesn't appear to be the fan, but it is a possibility. Sounds like a worthwhile approach.

    Looking into line voltage and load on the power supply.

    Is an exact replacement fan available?

  • jim73 Sep 06, 2007

    Fan sounds like a possibility, but seems ok.

    Looking into line voltage and load. Line voltage may be a problem with air conditiners running in house.

    Load appears normal. Standard mother board, 1 CD drive, 1 hard drive, one floppy, normal video card and 1 modem card.

    Is that specific fan available anywhere?

  • jim73 Sep 07, 2007

    Pursuing the house line power for any problems.

    Apparently the "power-good" signal would cause the exact symptom that we are experiencing.

    It operates as follows:

    If the power supply can't maintain proper outputs, (like a brown out), the "power_good" signal is withdrawn and the processor automatically resets.

    When the power output returns to its proper levels, the PS regenerates the "power_good" signal and the system again begins operation ( as if you had just powered on).

    This is precisely the kind of behavior that the computer is showing, so it is telling us something.

  • jim73 Sep 08, 2007

    I agree. The thermal overload would give the same or similar symptoms. When we operate the computer with the case open or with a small fan on the PS, the problem diminishes. Unfortunatly we did this at another location, so we have to discriminate between the thermal, (supply does not seem to be especially warm), and the power source at the original location. Always happens when you do two things at the same time.
    Will try to determine which before investing in a new power supply.

×

Ad

3 Answers

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

You need a new power switch. I am currently working on a S4020WM with the same problem. I cut one wire to the power switch, then used a paper clip to make a jumper to start the machine. It has run fine since then. The only trouble I am having is finding a replacement switch.

Posted on Dec 28, 2007

Ad

Same problem here.. power switch shorting. Either replace it, rig one up, or unplug it from the mother board after startup!

Posted on Aug 15, 2008

Ad
  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Master
  • 883 Answers

Yes, the power supply fan is either slowing down and allowing supply circuit to heat to a point where a thermal detector detects a shutdown condition, or the supply fan may be turning off. I had similar problem and solution was a new power supply fan.

Posted on Sep 05, 2007

  • 3 more comments 
  • Marty marty Sep 06, 2007

    so the new power supply fan was not the solution? did you get an exact match fan?

  • Marty marty Sep 07, 2007

    yes, inspect your house voltage for issues first. make sure no power dropouts. also try swapping breaker in house panel with another breaker.

  • Marty marty Sep 08, 2007

    thermal overload exhibits the same symptoms, though. try to monitor the power ok signal for dropouts (using a record-able voltmeter). if you can't, one solution is to try another power supply.

  • Marty marty Sep 13, 2007

    so all this help is rated as NOT HELPFUL?

  • Marty marty Oct 06, 2007

    so all this help is rated as NOT HELPFUL?

×

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

4 Answers

My iphone 5c stopped working suddenly, its screen darkened and it does not work. What is the problem?


Reset the phone:
  • Plug the charger into the phone.
  • Hold down the Home button while holding down the On/Off button.
  • Continue holding these down until (hopefully) the Apple displays on the screen.

25535892-sdjslvojehrmctw0u3nunerf-5-0.png

Mar 08, 2015 | iPhone 5c Cell Phones

1 Answer

My PC keeps restarting when playing this game


Computer randomly restarts is not something unique happened to you. Sometimes there is a dreadful total crash of the system and sometime it sends different errors, upon restarting nothing happens.


-- First of all disable the auto-restart option from your control panel settings
-- Remove any recently installed maliciously software/add-on or any other application or toolbar.
-- Try to cool down your PC as the overheating due to overuse of computer may result in system freezing and sudden restarting.
-- Update your BIOS.
-- Update the drivers
-- Make it sure the error is not caused by the deficient power supply. You may try to change the power supply.
-- Conduct the registry clean up scan for quick fix of the problem.

-- Remove flashy games and/or untrusted antiviruses/antispywares. Conduct the security scan through the most powerful scanners only.



If you have already been experiencing the computer automatic restart and shutdown problem then use PC optimization tool like Reginout to fix such kind of issues instantly.

Jan 18, 2013 | Toshiba Computers & Internet

1 Answer

1990 dakota engine shutting down randomly


I had a 1988 dodge Dakota ,and it did the same thing. I fould that the o2 sensor was bad. I am a self employed mechanic

Oct 28, 2012 | Dodge Dakota Cars & Trucks

1 Answer

Satellite PSAGCA-06M01N keeps restarting when i try to upgrade windows


Computer randomly restarts is not something unique happened to you. Sometimes there is a dreadful total crash of the system and sometime it sends different errors, upon restarting nothing happens.

-- First of all disable the auto-restart option from your control panel settings
-- Remove any recently installed maliciously software/add-on or any other application or toolbar.
-- Try to cool down your PC as the overheating due to overuse of computer may result in system freezing and sudden restarting.
-- Update your BIOS.
-- Update the drivers
-- Make it sure the error is not caused by the deficient power supply. You may try to change the power supply.
-- Conduct the registry clean up scan for quick fix of the problem.
-- Remove flashy games and/or untrusted antiviruses/antispywares. Conduct the security scan through the most powerful scanners only.
I would recommend to use a system utility tool like PCFresher to fix windows errors and registry errors. Then try updating hope problem is fixed.

Apr 29, 2012 | Computers & Internet

1 Answer

2004 ford f350diesle hard starting depress throtle nothing there


Dear dsmalley427,
I think it sounds like a fuel injection problem. You get fuel for a while until the injector backs up and then all of a sudden NO FUEL. The engine quits and the pressure drops and flow returns enough for you to restart. If I were you I would get to a good mechanic and check the fuel injectors.
OR--try adding a fuel additive that would clean the injectors.--Signed jwr

May 10, 2009 | 2004 Ford F350

2 Answers

Dell Inspiron 530 randomly shuts down and restarts


Sounds like it could be a virus. Or, a heat buildup problem - are all fans inside machine working? Is the fan inside the power supply operating? Was there any work done inside the computer recently?
If the hdw is all ok, go out and buy yourself a copy of Norton Internet Security 2009 - 1 user lic - $49.99 @ Staples. Do *not* buy any earlier vers. of this software! Install, update it, run computer computer scan - probably will find/remove some/many viruses.

If this helps, please take the time to rate my response to you.
Thanks and good luck.

gurutim

Mar 22, 2009 | Dell Inspiron 530 Desktop Computer

2 Answers

THE MOBILE IS TURN OFF AND ON RESPECTIVLY


DId you get the cell phone wet anytime recently?

Dec 06, 2008 | Sony Ericsson K750i Cellular Phone

Not finding what you are looking for?
Compaq (480082-001) ( 480082-001 ) Power Supply Logo

Related Topics:

270 people viewed this question

Ask a Question

Usually answered in minutes!

Top Compaq Computers & Internet Experts

Ekse

Level 3 Expert

13434 Answers

Thomas F. Schneider

Level 3 Expert

2715 Answers

Toby Lee
Toby Lee

Level 3 Expert

409 Answers

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

Answer questions

Manuals & User Guides

Loading...