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Power supply seems to cut out periodicaly. If the

Power supply seems to cut out periodicaly. If the power cable is removed and reseated it cures the problem until it returns again

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Dry goint on powersupply somewere.

Posted on Jul 11, 2009


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Problems periodicaly no power on of my beosound3000

If this issue is intermittent, it will be impossible for me to give you an accurate guess, without seeing the unit on my bench. It can be a Display Microprocessor or main Microprocessor(computers within you B&O), power relays, solder connections, power supply issues. If you're interested in having your B&O repaired, please visit my website at You may contact me there. BTW, I was an Authorized Factory Service center for all B&O products for some 20+ years. Thank you.

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Why does my computer say no imput signal

If you have used a desktop computer or have a dual-monitor setup, you have likely seen the "No-input Signal" error message on your computer monitor. The error message may point to a number of culprits. Accordingly, the solutions run from simple to complex. Prior to attempting advanced troubleshooting methods, check the connection first. Power off the computer and the monitor. Remove the cable that connects the monitor with the computer, then reseat it. Try a different port, if possible, then reboot the computer.
Connect the monitor to another computer if possible to eliminate the monitor as the faulty hardware. Shut down the computer. WARNING: Before you start troubleshooting remember that you are dealing with electricity that can KILL. - rules Only work inside the computer case when the power has been switched off and disconnected. Never open the power source. Some of the below steps recommend removing physical parts within the computer. While in the computer it is highly recommend that you be aware of ESD and its potential hazards Remove all cables and devices plugged into the computer. Make a note of the port into which your monitor is plugged. Remove the left side panel when facing the front of the case. Unscrew screws or manipulate latches to remove the side panel. This process varies according to the type of case you have. Please consult your manual if you are unsure of how to remove the side panel. Attach the antistatic wrist bracelet's clip to a metal object, then ******** the bracelet. Locate your video card. (This will be the card that contains the port with which your monitor interfaces.) Remove the slot cover screw that secures the card into the slot. Remove any power cables that connect the video card to the power supply. Pull the card out of the slot. Examine the gold pins to check for any damage. Reseat the card if it physically appears to be undamaged. You should hear a click once the card is secure in the slot. Screw in the slot cover screw. Attach the power cable from the power supply unit, if applicable. Leave the case open for now. Reconnect only the monitor, power cable and any devices required to boot the computer, then restart the computer. Shut down the computer again if you receive the "No-input Signal" error message again. Remove any cables and devices you plugged in to restart the machine. Remove the video card with a spare or replacement by following the instructions above. Connect necessary cables and devices to reboot the computer, then restart it. Shut down the computer and remove cables and devices if the display still won't work. Unplug the power supply's cables from all devices on the motherboard. Make a note of each plug-in so that you can correctly connect all devices with the new power supply. Remove the screws that mount the power supply. Fit the new power supply into the mounting area, and screw in all screws. Attach all required power cables to devices connected to the motherboard. Attach the cables and devices required to start the computer. Reboot. Hope this helps.

Dec 07, 2012 | Computers & Internet

1 Answer

Several times a day my computer turns itself off then immediately back on. From best I can tell from the data messages, it has lost power. This doesn't seem like a power supply issue, is it heat?

Read your event logs, under system events. The event viewer is located in control panel, under administrative tools.
If it is heat that is causing the issue, replace the unit. My thought is power supply, as heat would need to disparate before the unit would restart, typically.
Pull and reseat your ram chip(s) and reseat all cables.

Jun 28, 2011 | Gateway DX482201 (PTGA002002) PC Desktop

1 Answer

4700C when press power on button, no activity on monitor. Fan is running but hard drive does not make any sounds that tell me it is accessing. Power on light stays yellow, does not turn...

It could be either or... Dell however has known issues with their power supplies. If it was completely bad it wouldnt have any power to it what so ever. There are 2 things that you can do, depending on your knowledge and comfort level with your computer. Also if you have the parts available to do so. If so try the following, remove your power supply from your dell, if you have another one that you know works, take this one out as well and hook it up into your dell, just make sure that you label each cable before taking it out so you'll be able to properly hook it back up. Try booting back up after putting the other power supply in, if same result, try switching your video card out. Its usually a process of elimination with these kinds of things. Let me know how that works and we'll take step 2 if needed.

Oct 10, 2010 | Dell Dimension 4700C PC Desktop

1 Answer

I opened my computer and it was on, but the screen was frozen so I shut it down and tried to reboot it, but it wouldn't turn on. I thought it was something to do with the battery being dead, so I plugged...

It has something to do with the power supply of your unit or the motherboard itself, especially when you isolate the battery and plug only the power cable and i wont turn on. In this case, you can reseat the power supply by removing the cables and battery when the unit is off, remove the screws below it, remove the hard drive, remove the optical drive then remove the power supply and reseat it. Then perform the steps in descending order (insert optical, hard drive, screws, battery, cables). Turn it on and observe if there are lights lit on the keyboard. If you don't know how to do this or if symptom persists, consult HP tech support for repair of your laptop..

Aug 22, 2010 | HP Pavilion DV6775US 15.4" Entertainment...

1 Answer

Start-up problems with my acer

* Remove all 3rd party hardwares(like printers,scanners,pen drive,cameras and all),try restarting the computer and check if it works.

* Remove the power surge and connect the power cable directly to the wall socket.

* Remove the power cable of the tower and try connecting the monitor's power cable to the tower and check if it works( mostly both power cables are the same).

* Remove the power cable to mobo and reseat the connector and ground connectors per other posts - check if power supply(fan at the back of the computer next to where you plug in the power cable) fans turns on and check if CPU fan spins.

*If still power supply fan is not working the replace the power supply.

Jan 08, 2010 | Acer Desktop with AMD Sempron X2 2300...

1 Answer

Del inspriron 8100... It was working but a bad fan.. opened it up (ok I know all the comments)... but now I dont even have power to the mother board..... last hope..

reseat the 120v cable for the processor and as well as the 40 pin ATX cable still if u dont see the light lit on the motherboard, u have to replace the motherboard. but before that remove the hard drive & optical drive , memory and the pci card and check once again, if no go, replace the motherboard

Oct 18, 2009 | Dell Dimension 4300 Power Supply- FREE...

2 Answers

Flashing amber light on power button, I suspect power supply

Correct, the only step you can try is to reseat the memory chips. it should fix the problem. the power supply seems to be good here, as well as bad.
why good? becasue it is supplying the power to the computer and the only reason you see the light on the tower.
why bad? becasue the power supplied is not enough for the computer to start.
Now, the power is going to the motherboard, if you see any light on the motherboard the power supply is okay and then it became the duty of the motherboard to forward the power to all the components. so reseating the cables on the motherboard should fix the problem, most probably memory can cause such problems. so keep your fingures crossed and then restart the computer after you done resseating the memory and other cables, if it still doesnot work. then you may need to use the hit and trial method to find out if its a power supply or motherboard.
we normally replace both the parts in such cases.

all the best.

Oct 12, 2009 | Dell Precision 380 P4 Dual Core 3 GHz...

3 Answers

Optiflex GX260 does not power up

any beep codes?? if there isnt any beep codes your power suply probly isnt producing enough power to boot the system you can check for a burnt or hot smell coming from the power supply if you smell burnt pop corn then you need to replace the power supply they make a power supply tester but if your only needing it once not worth 20 dollars to buy it if the power supply is replaced and it still isnt working the mother board is toast

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2 Answers

Dell Dimension power problem

There are several different solutions for this as posted at this Forum.

1) A lot of people have just removed the Jumper for the CMOS and turned the Power back on and back off and replaced the jumper and/or removed the battery.

2) Several people have reseated the Memory and after booting back up it worked.

3) A few had to replace the Mother Board and CPU but in this instance they had to also replace the Case because the Dell case wasn't really fit for the heat of from the CPU.

4) I had the exact same problem and luckily replacing the Power Supply fixed this for me. I had to cut out the back of the Dell case for the toggle on/off switch but when I tested the old Power Supply it was only getting 5amps and this was causing the Amber/Orange/Yellow light to constantly flash.

I hope this helps!

Jan 20, 2009 | Dell Dimension 8400 power supply ** FREE...

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