Question about Computers & Internet

1 Answer

Tower intermittently loses power

My tower loses power and I can't seem to figure out why or what to do. I don't have to be using the computer. It can be turned on and not in use and and will suddenly turn off. The only way to get it working again is to unplug the three-pronged plug from the back and then plugging it and unplugging it until it comes back on. Sometimes this has to be done more than a dozen times. I tried the method on the power strip end, but that seems to have no effect on it. The only time it shuts down consistently is when I run a full Norton scan every Friday. Each time about 20 minutes into the scan it shuts down. I don't want to invest in any new cords, etc. until I'm pretty certain what the problem is. Thanks. shortly after bootup the hard drive lose power, the power on/off led blinks, the monitor shuts off, the hard disk led lights are on constantly. pressing the power off button doesn't turn the pc off. what i do was to move around the tower case's wires by pulling and pushing it lightly, then the pc begins to boot normally. the problem occurs at different time intervals shortly after a normal boot and sometimes while booting. which causes the problem?

Posted by on

  • jrbodkin Feb 02, 2009

    I have a very similar problem with Dual 1.42 G4 (FW800) where the system crashes after the screen lighting, the chimes sounding and then crash. I usually disconnect the cord at the back, reset the MPU and remove/re-install the battery and then try again. Can happen multiple times (one time started normally after 31 times, another still did not start after 80 times) Many times just removing the cord will allow it to restart. Last two times, the only way to have it restart is to completely remove power for a couple of hours and then restart as before. When it is operating now, there is a slow throbing hum coming from the unit. I don't know whether to replace the power supply (it is working at the moment), replace the battery again, or look at another failed component such as the front panel board. Any suggestions?? Please!!

    Thanks, Jim


1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that got 5 achievements.


    An expert who has written 20 answers of more than 400 characters.


    An expert who has answered 20 questions.

  • Expert
  • 56 Answers

I think you have a problem in you power supply sir try changing it or try separating your monitors source of power.

Posted on Dec 10, 2008

1 Suggested Answer

  • 2 Answers

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

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.

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%


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



Related Questions:

1 Answer

Do you know if this PS has a variable speed fan? The fan seem to be running at a consistantly slower than what seems appropriate speed and my computer randomly suts off or restarts.

you might have a faulty PSU power supply unit if the units fan is intermittent and your computer restarts at any time you could try plowing all the dust from it using a high pressure air blower from a compressor make absolutely sure there is no moisture in the airlines you will have to open up your computer to blow the dust from your psu and blow the dust from inside to outside through the back of psu while you are inside your computer blow all dust from your computer
if you have any problems with this post a reply
hope this helps

Aug 03, 2011 | Gateway Bestec ATX-300-12EB3 305w Power...

1 Answer

Its seems the internal power supply fails and burned out.... some are saying it is common issue of all d link switching hub? is it possible to use an replacment power supply?..

its not a common issue it the problem from ur building earthing plz chek voltages for this u get i.e, neutal face and earth
in earthing u have to get only below 3 volts in case u get more than that its sure ur problem that ur facing is with voltage variation
the common issues of this switching is

I administer a small network for a cab company, and have lately been battling an internal connectivity problem for the last several days. It seems that 2 of the 5 computers on the LAN intermittently "drop" connection without losing their IP addresses. If I disable the network connection on the "dropped" machine, and then immediately re-enable it, it seems to work for anywhere from 5 minutes to a couple of hours, then "drops" again. All LAN IP addresses are configured manually. I've posted an image of the network map at to illustrate how the LAN is arranged.

The local network has 2 computers that connect to the internet through the DSL router, one for ICS, and the other has an external web server (neither one has connectivity problems).

One computer on the LAN has an internal web server that handles our dispatch program. All computers on the network need to be able to access this box.

The dispatch client has to access the dispatch server, but can't have internet access. It's blocked from the internet through the simple expedient of not having an external DNS server assignment.

Now, for the meat of the problem. I've checked and re-checked the configurations for both the dispatch server and the dispatch client, and find no problems. Both have the most recent drivers for the network cards, and both have new cables. I've swapped out a known good hub for the LAN, and have made sure that there are no mis-configured hosts files. As outlined previously, disabling and enabling the NIC on the offending machine will restore connectivity for a while. I've checked each machine for an overheating problem, just in case, and find no trouble there. All machines are running XP Pro.

I can't shake the feeling that I'm missing something basic and simple, but I'm at a loss as to what that might be. Any suggestions?

Mar 28, 2011 | D-Link (DMC-1001) Power Supply

1 Answer

The computer has on occasion crashed for no apprent reason. I had the power supply out and it has normal light indications until it i plugged into the mother board. I have had itwork normally, for a...

Bad Power Supply. Weak voltage power rail.

Bestec is a low quality power supply. Used to save the computer manufacturer money.

Also, a Power Supply with a weak voltage power rail will put out enough power to light LED lights, and perhaps spin fans, but not enough power to turn the Processor on, and/or keep it on.

A) ALL the LED lights use less than 1 Watt of power.

B) EACH fan uses 2 to 3 Watts

C) A typical Processor uses 51 to 125 Watts. Depends on what Processor it is.

Replace the Power Supply. Clean the inside of the computer out, with a can of compressed air for computers before installing.

What is the computer manufacturer name, and Model Number. The Model Number is on the back of a desktop computer tower next to the Windows product key, or up on the side of the computer tower.
Post back in a Comment.


Dec 04, 2010 | Bestec ATX-1956F (ATX1956F) 200-Watt Power...

1 Answer

My compaq desktop will not power up and it has a blinking green light on the back of it were you plug in the cord

Hi ,

With what you have just told me it seems to be a hardware issue,as there is a light at the back panel of the computer tower it means that the computer is getting the power.The light that you see at the back is for the power supply ( SMPS) box and it seems that it is functioning ok.Generally in these kind of circumstances we have found the motherboard to be the culprit.I believe there is no light on the front panel and these are the steps if it is so .
Turn the computer off and then disconenct all the external devices and then open up the computer tower then once it is open look for the memory card's these are long green cards that looks like a scale and is around 4 inches long ,there can be one or more than one .So remove the memory cards and then turn the computer on and if you hear long beeping noise it means that the motherbard is fine but no sound at all indicates the motherboard to be bad and needs to be replaced or serviced ..Please do these steps and let me know...THANKYOU ...

hope this helps you .....all the best

May 15, 2010 | Bestec (ATX-250-12E) 250-Watt Power Supply

1 Answer

Computer will not power up.tower light stays yellow instead of blue

check whether the monitor cable is conected with the cpu(tower) becuase if the monitor is not recieveing the signal from the tower means you will get this issue.

Nov 11, 2009 | Computers & Internet

1 Answer

Emachine-adjusted resolution to high cant get back to home page

while restarting your computer press F8. you get multiple option windows. choose enable vga mode

Jun 21, 2009 | Instek Power Supply, Triple Output, DC,...

1 Answer

Losing signal to monitor

check all cable, and check you video card that it is seated correctly they can come loose ue to expansion and contraction

May 16, 2009 | Computers & Internet

1 Answer

PSU powers on computer, then computer starts to lose power

I agree with ****. You have to replace new PSU .

Apr 23, 2009 | Computers & Internet

3 Answers

How can i determine if my power supply is dead?

You can see the pinouts for the power supply here.

Jan 20, 2009 | HP Computers & Internet

1 Answer

Hp compaq d220 mt tower

what kind of beeps??
long beeps point to faulty memory.
one long two or three short beeps point to faulty videocard.
the devices might just have come lose......
please describe the beeps

Oct 16, 2007 | Computers & Internet

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

Related Topics:

197 people viewed this question

Ask a Question

Usually answered in minutes!

Top Computers & Internet Experts

Brian Sullivan
Brian Sullivan

Level 3 Expert

27725 Answers


Level 3 Expert

98829 Answers

David Payne
David Payne

Level 3 Expert

14071 Answers

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

Answer questions

Manuals & User Guides