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Poping sound i have a pc with K7t266 pro motherboard in it... for some reason it stopped working....when I plugged the power cable in it made a loud pop sound with the smell of buring it in...i noticed that there wasno more power t the board....I am thinking the power suplly unit is damaged but I am scared if the action may have damaged the motherboard too.... Please advice..if it's only the PSU ican change it quicky if it's the board then waoooooo am in trouble... my email address is

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Re: poping sound - PC Desktops

It's the psu.

Posted on Jan 04, 2008

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Have a new computer that now has windows 8.1, no sound is coming from speaker, S120 speaker system. Can I download something to resolve this?

Check the following;
  1. Speakers plugged into the correct jack
  2. Speakers receiving power
  3. Speakers Turned On
  4. Sound not turned all the way down in Mixer
  5. Sound Not Muted

Jan 04, 2015 | PC Desktops

1 Answer

My dell GX620 desktop does not power when ever I plug in the network (RJ 45) cable. Also if the system has boots to desktop, and I plug in the network cable it automatically goes off.

1) Does it have a separate Ethernet Card, or is it integrated?
(Part of the motherboard)


The Dell Optiplex GX620 comes with Integrated networking.
The chipset is a Broadcom 572.
It's part of the motherboard, and you plug the Ethernet Cable into the back of the computer.

However, you could have a separate Ethernet Card, plugged into the white PCI expansion slot on the motherboard.

A) If you are using a separate Ethernet Card, replace it.

B) If you are using the Intergrated networking of the motherboard, (Plug Ethernet cable into back of computer), use an Ethernet Card instead.

White PCI slot.

You have a short circuit when you plug the Ethernet Cable into the motherboard. Don't use the motherboard networking, use an Ethernet Card.

2) Plugging an Ethernet Cable into a computer that is on, = No.
It is not a Plug N' Play item.

(Not stating this is what you are doing.
Just posting in case you are. Burns out the Ethernet chipset on the motherboard)

For additional questions please post in a Comment.


Mar 20, 2013 | Dell OptiPlex GX620 PC Desktop

1 Answer

My computer stopped working. I replaced motherboard and power supply. Now the solid amber light is on . The computer sounds like its starting up and the fan turns on. After about 10 seconds the fan gets...

Make sure that you connected all of the required power connectors on to the motherboard. Depending on you motherboard, there might be a 4 pin connector next to the CPU that supplies extra power to the CPU. Also if you have a dedicated video card (not integrated to the motherboard), it may need more power as higher end video cards need direct power from the power supply. Also make sure you have your monitor connected correctly.
With that said, I have a feeling that it is the 4 pin CPU connector since it is easy to miss.

Oct 22, 2012 | Dell Precision 370 (370TREC) PC Desktop

1 Answer

When I plug the unit into power, the CPU fan runs very fast but no boot, and then when I press power on the fan slows down and the PC boots normally. It shuts down in about 30 minutes with no sign of...

Sounds like you are overheating. One way to tell if it's overheating is you say it will run for about 30 minutes then shuts down. When it shuts down try rebooting to see if the boots successfully. If it fails to boot successfully right after it shut down then you are probably overheating. If you wait awhile to let it cool down for 30 minutes or so and if you reboot and it does it successfully you definitely have a overheating problem. If I remember correctly all those compaq sr series have loud and fast running fans. Computers overheat because of three reasons for the most part: 1) A fan has stopped working. 2) The Thermal Paste on the CPU and Heat Sink has dried up or is not thick enough to keep the unit cool. 3) Dust has clogged the fan vents and inside the computer. Fortunately for you desktops don't have to be completely disassembled like laptops to get to the fan, CPU and heatsink. Just pop the case and you'll see the components attached to the motherboard

Mar 18, 2012 | HEWLETT-PACKARD Compaq Presario SR5518F...

1 Answer

Monitor will not boot up is reading no input signal

So either the computer isn't generating a video signal, the cable isn't carrying the signal to the monitor, or else the monitor isn't capable of receiving a video signal.To test this, first try a video cable that you know is good, in case your cable is bad, If it works with the other cable, the problem was your original video cable. If it still doesn't work, put your original cable back, and hook another computer up to the monitor. If the monitor makes the same message, the problem is with the monitor. If the other computer works when connected to this monitor, your problem was that the original computer isn't booting (which could be due to several reasons I will list below), or the video adapter is broken.Possible reasons for the computer not booting: bad power supply, bad power button, bad hard drive, bad memory, bad motherboard component. If you determine that it isn't booting, unplug everything except the keyboard mouse monitor and power cord, to see if that makes a difference. If it boots after that, something you unplugged was causing the problem, plug them each back in one by one, rebooting in between, and when it stops booting properly, the last thing you plugged in is causing the problem.

Mar 02, 2012 | Acer PC Desktops

1 Answer

Keyboard and moniter no power

Possible Reasons:

> Not plugged in correctly (beeps sounds)
> Damaged Motherboard Plugs(Happens if you often take off your plugging with monitor and keyboad)

> Plug your monitor in anotjer device and see if that works, if so the second reason might be the possible cause for non detection.

See if this helps.


Jan 27, 2011 | PC Desktops

1 Answer

My neighbor has a emachine W5243.It will not power on, no led light,keyboard and optical mouse have no light,nothing on monitor.When you plug in the power cord,the power supply fan runs quietly and the cpu...

I work on computers everyday and it sounds like the power supply. Do you have access to a tester? If not just take out the power supply and run it up to a shop, I'm sure they'd be glad to test it free of charge. Hope this helps. Lets hope it's the PSU, it's the cheapest to replace!

Jul 01, 2010 | E-Machines PC Desktops

3 Answers

HP Compaq D530 sff Will not power up

sounds like your power supply went out.

Nov 16, 2007 | HP Compaq d530 PC Desktop

2 Answers

No power, power supply & motherboard green light blinking

I had the same exact problem for the same exact reason. Plug the power cable into the back. Open up the side of the case and unplug all the wires that the power supply plugs into. The motherboard, harddrive, cd & dvd drives, everything. wait about 10 minutes and plug them back in, plugging the BIG cable that connects to the motherboard back in LAST. This will make the light go from blinking to solid. I think it is a safety? to protect the motherboard from damage.

Nov 01, 2007 | Sony VAIO VGC-RB42G PC Desktop

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