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I accidentally knocked one of the capaictors off the inside of my PC. It is still working, but have I caused any damage and will I need to replace the motherboard?

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If it aint broke dont fix it, the pc will answer that for you if it keeps working fine you lucked out if you start having problems you know why and will have to replace the mobo

Posted on Jul 12, 2008

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Turns on briefly but cuts out and wont start again

You may have a failing power supply (PSU), a loose connection internally, or perhaps a part that is overheating.

The first and last here are your most likely culprits. Power supplies produce less power as their lifespan increases. Eventually it will reach a point where that output is no longer sufficient to maintain power to the computer. Testing this is a relatively basic task, and the equipment needed is relatively inexpensive. If you are comfortable with opening up your PC's chassis to test the PSU feel free to do so. If you are not disagreeable then a repair shop will have a steeper price tag attached to it, but they can do it relatively quickly.

This link is to a site known as How To Geek, and it has a basic walk-through on the process. How Can Test My Computers Power Supply

You can also purchase the tester at a local PC shop, or by following this link to NewEgg for one: PC 20 24 Pin PSU ATX SATA HD Power Supply Tester Blue

It's effectiveness may be hard to believe due to its price, but it will work for your needs. More pricey models will have ports for testing connections beyond the motherboard connection (the only one you should need at this time).

The next issue I referenced is a loose connection. The reason I say this is the most unlikely scenario is that most parts and connections have some form of interlocking connection. That being said, if a connection was completely secured the mild bumps your system gets from accidentally knocking your foot against it and other mild abuses could knock that connection loose to the point it causes boot failure. A repair shop can check this quickly. If you are comfortable cracking open that computer case you can always check the integrity of your connections for free.

Finally, we come to the issue of overheating. The PSU problem is still the most probable, but overheating is not uncommon either. If you are not regularly cleaning the inside of your PC dust can accumulate that causes additional heat to the components in a variety of different ways. Dust is often the death of a machine. If you have not opened your PC on a monthly basis (I recommend more frequently), or if you are like many people and never open it at all; you may have a large amount of dust built up clogging air flow to your components. Open the chassis and vacuum out the computer with a vacuum hose. Be cautious if you have a high power vacuum and do not get any wires sucked up as this can cause damage. Do not use "Air Duster" to clean the inside of electronics. That stuff is really more of a problem than a problem solver. It can actually force dust into components in areas where it cannot be seen, blocks more airflow, and summarily produces more heat. Sometimes cleaning out your computer and improving the airflow is all that is needed to prevent overheating.

Good luck with figuring this one out, and please let me know if any of this helps you out.

Oct 24, 2015 | HP Pavilion a1720n PC Desktop

1 Answer

Knocking noise

The only thing that moves inside the PC that can knock with those effects is the hard drive. The knocking sound is the heads constantly re-parking and trying to synchronize to the platters. That is a sound you don't want to hear. I would IMMEDIATELY copy off ANYTHING that you don't want to lose forever from that disk, because death is imminent.

Dec 04, 2013 | HP TouchSmart Computers & Internet

1 Answer

I have a Gateway 310 XL H desk top PC. After the storm, Isaac, It won't power on. The red and green lights come on, the red goes off after a short time. The monitor flashes a manfacture logo then

The system is powered up if green light on, the hard disk is powered up if red-light on for a few seconds then goes off, but I assume it's not loading up after that. You have no output to video.

Try holding f2 or f4 to load default bios when turning on. If that doesnt work then That would point to me that there is a problem with either:

1) processor burnt out, or needs refitting following a knock to the case causing a bad connection.

2) ram burnt out or not correctly installed. Try refitting the ram or using a different combination of ram.

3. Bios chip burnt out. Sometimes you can literally see the chip is slightly melted.

4. Other motherboard fault, look for melted chip or damaged component.

5. Psu faulty or not connected properly. Check connections, or bench test with another psu.

Have you moved the pc recently? Sometimes dust builds up under processor or along ram, and when moving pc giving it a slight knock can cause bad connection. If dusty, remove clean and re install.

Hope it helps.

Sep 05, 2012 | Gateway 310 S PC Desktop

1 Answer

Cpu fan stopped working on dell dimension e310

Did you accidentally knock the fans little power plug out of its connection to the motherboard?

May 17, 2012 | Dell Dimension E310 PC Desktop

1 Answer

My laptop's hinge is broken but the connectivity is still on. Can I replace only the outer case? If so where and how much would it cost?


It is not the outer case only, the HP/ Compaq laptops outer case is very thin fiber, from inside you've a metal hinge and bar holding it. You can take it to a local store to get it repaired. I would suggest if you have HP Accidental Damage Protection (ADP), you should call HP. They will replace or repair all accidental damages.


Jun 07, 2011 | HP COMPAQ Presario SR5510F Athlon 64 X2...

1 Answer

Hi there i knocked my computer over the other day and now it wont link to the screen, plus keyboard and mouse dont work, i've looked inside dusted and stuff but cant see much wrong a few loose wires e.g p7...

Please don't misunderstand but maybe you accidentally touch someting inside the system while cleaning it that caused for the computer not to work properly. Be careful in cleaning our computer specially inside. Replug all the links needed because the computer may reconfigurate it again before it will work. If it won't work however, please contact you Hardware IT Technician.

Mar 22, 2011 | Computers & Internet

1 Answer


hi, well, it sounds like the capaictors on the video card are going bad. likely, the one surrounding the video processor chip. heres the deal though, you'll have to open the case to inspect them. this can be quite easy, but may cause damage to the plastics even if you are careful. if you can get it open, look at the tiny round cylinders sticking up on the video board(the one without the power plug into it) and see if any of the tops of them are popped upward, or leaking brown substance. now, don't overlook the power board, it may have blown capacitors too, they work in conjunction with each other. if you find any that are blown, you can purchase most capacitors at your local radio shack, or electronics store. pay close attention to the micro-farad rating- NUMBER-UF like 220uf, and the voltage range it works up to. like 16V or 16 volts. never install less than voltage rating, but if you can fit, larger voltage ratings up to 35V can be better for life expectancy. there will also be a temp rating, 85C or 105C, always install only 105 degree celcius or higher, they will last longer. most all of these are electrolytic capacitors and have polarity(positive and negative) do not reverse them, there will be small plus and negative signs on the board and the capaictors will show only the negative side with a stripe on them. you will need a 40 watt soldering iron or better to de/resolder on and off the board, and of course some solder and flux paste, these items can also be purchased at an electronics store. after all this, you might still want to have checked and repaired by a professional repair shop, and i could be totally wrong, the problem could lie in the video chip itself, good luck if you try to repair, i repair many monitors as a side business and re-sell them on ebay. hope i could help.

May 19, 2010 | Dell Dimension 2400 PC Desktop

2 Answers

I have a compaq presari, i took the ram out to replace it with bigger ram that wouldnt fit then I replaced the old and now it wont switch back on

Remove the ram module and replace it, making sure it seats properly in the slot. It sounds to me the ram is not fully seated. Make sure the notches line up, the ram can only go in one way.

Jun 08, 2009 | HP Compaq Presario SR2011WM PC Desktop

1 Answer

My Gateway notebook CX2610 needs a new hinge.

bring it to your closest repair shop,but make a few phone calls first to see can they fix it. then evaluate the cost of repair compared to a complette replacement laptop and use the damaged one a a workstation (check your home insurance if the hinge was broken through accidental damage)

Aug 28, 2008 | Computers & Internet

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