Tip & How-To about Computers & Internet

Desktop Maintenance: Dust

Ever seen your desktop's performance grind to an impassable halt?
Or maybe the disconcerting sounds emanating from inside your tower have scared you into calling an IT nerd?
Before picking up the phone and racking up a ridiculously high phone bill; with the inevitable "Turn it off and on", flowing expertly from the customer service assistant's mouth without a hint of irony... You should open the tower and take your vacuum cleaner and suck all the dust out; needless to say turn the computer off and make sure you are doing this in a well ventalated room. If you're reading this, chances are there's more dust than in Tutankhamun's crypt.
Make sure to suck up as much dust as possible whilst not being too vigourous (remember: PCs are sensitive electronic equipment). Most of the dust build-up will be accumulated in the fan; try a small light bristled brush to dislodge any stubborn pieces of dust and maybe make sure you're doing it on a surface you don't mind being lightly (or heavily) caked in dust.
Once sufficiently cleaned, replace the cover of the tower and re-connect the power source. You should see a significant recovery in performance straight away and a drastic improvement to the noise, whilst operating.

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How do I remove the agitator from LG top Load washer


the agitator is held by a bolt with a 7/16 drive nut located inside the middle of agitator from the top downward? however by ur description sounds like maybe u have bad bearing in the hub? the cam dogs in the agitator dont usually make any noise especially when bad they just dont allow the agitator to move or catch the groves to agitate. The grinding could also be coming from something stuck inside the tub or on its outside and thus is hitting the wall lining and makes a screeching scraping sound, Ive seen this several times, a bra wire, or loose coin or key, etc

Sep 28, 2014 | Washing Machines

1 Answer

internet connection


That model isn't a Desktop, it's a laptop. If you're attempting to connect wirelessly, there's a wireless button, identified by an icon that looks like a tower with radio waves emanating from it. It's usually above the keyboard, and it has a blue light that indicates that wireless power is on. If the light is amber, the power is off.

Even when on, you have to use the icon in the notification area to select a wireless source, and maybe enter a numeric key or password. But on newer routers, you press a WPS button to automatically allow the device to connect.

Nov 06, 2013 | HP PAVILLION DV6841TX PC Desktop

1 Answer

Old Altec Lansing (no model number on them but they're at least 10 years old) speakers won't work on new Dell Optiplex desktop. They still work on the old Dell Dimension they were on and work on a Del


I have a similar set of Boston Acoustics speakers, which work fine for my tower.
I find it hard to believe that they would just fail outright, and also that (unless you bought an upgraded sound system) you would have digital-only for your audio.
I would recommend to check the basics first.
  1. Check the speakers on another device. Mp3 player will work fine.
  2. check the sound card on your computer (use a set of headphones or another speaker set).
  3. If you find they weren't plugged in, powered on, etc. resolve that. Usually the power plugs are black, and only fit in one spot. The audio cable to plug into the computer is similar to a headphones jack (3.5mm). On most computers the audio output (speakers) port is colored green.
  4. If none of these get you fixed, go into the control panel and click the sounds icon. From there you can view your volume levels (is the sound muted?), view your playback device (it might have a hardware problem, or be disabled), and test the settings.
  5. If you are still stuck after this please also post your version of windows, and the make/model of your computer. If you know it, the type of audio device you are using would also be helpful. (if it's a Dell standard device or perhaps an upgraded Creative or other brand device + model #)
Thanks for asking, and Good Luck!

Dec 16, 2011 | Altec Lansing M604 Computer Speakers

1 Answer

crackles even after blades are cleaned


To stop the crackling sound, you need to remove all of the dust particles from the wire in the back. Sometimes when the unit is extremely dirty you can see sparks emanating from the wire, this is what causes the crackling sound. The unit has a built in cleaner you can lift up and down to perform this task, located on the top, but this doesn't work extremely well.

I usually take a can of compressed air and blow as much of the dust I can off the wire and all surrounding internal areas as I can. To do this, approach the unit from the front, and turn the blade door slightly so the wire can be seen. This along with a thorough cleaning of the blades should eliminate the crackling noise. Of course, make sure the device is unplugged before performing any cleaning.

Oct 19, 2011 | Ionic Pro TURBO Air Purifier

2 Answers

grinding noise in tower


Grinding noise in tower If everything on your computer is working fine then it is probaly a fan put your ear in the back of your tower near the power cord and see if you can hear the grinding noise better if you can then your power supply's fan is going out if not its probally one of the inside fans in your tower open up your tower and see if you can find which fan it is if you dont want to do this you should probaly get a tech to look at it it's a pretty cheap fix and it can save your computer from heat dammage

Nov 07, 2009 | Computers & Internet

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