Login    Forum    Search    FAQ

Board index » Upgrading and Repairing Forum » Desktop PC Hardware




Post new topic Reply to topic  [ 4 posts ] 
Author Message
 Post subject: Air Compressor 90 PSI Max to Blow Dust From Inside Computer?
 Post Posted: Wed Jun 20, 2012 6:59 pm 
Offline

Joined: Tue Nov 24, 2009 11:27 pm
Posts: 111
Scott,

I was wondering, if used carefully, would be okay to use my small air compressor to blow motherboard components in my computer? At present, I have no cans of compressed air at my work bench. The compressor nozzle will be held at a distance as not to cause excessive force on components: video card, etc.

DLH


Top 
 Profile  
Reply with quote  
 Post subject: Re: Air Compressor 90 PSI Max to Blow Dust From Inside Compu
 Post Posted: Thu Jun 21, 2012 9:17 am 
Offline
Site Admin

Joined: Sun Feb 04, 2007 11:44 am
Posts: 5754
It's not just OK, it's recommended. Canned air is simply too expensive for anything but spot cleaning. I've been using this 2-stage air compressor (no longer in production, but originally made by DeVilbiss for Sears) for 20 years now. I also use (and highly recommend) the VACULA BlackStar blowgun (with an optional rubber tip), it offers very precise pressure control. In my experience nothing does a better job for cleaning PCs than a good air compressor and blowgun combo.

Note that because of the amount of dust liberated I only do this type of cleaning outside, and depending on the wind conditions (or lack thereof) sometimes I wear a dust mask. When cleaning desktop systems I simply remove the covers and thoroughly blow everything out, taking caution so as not to overspeed any cooling fans. In some cases I remove the front bezel/fascia for more thorough cleaning in that area. I also blow out the power supply from the outside in, and vice versa. Finally, I hold the keyboard upside down and throroughly blow up into and around all of the keys.

For laptops no disassembly is required. The cooling ducts in a laptop are generally sealed such that the CPU fan both draws air in as well as exhausts air out through one or more interconnected ports. Thus if you blow in one port, the air (and dust) will come out through the others. I also turn the system upside down and blow out the keyboard as well.

The only caution when using compressed air (besides following standard ESD prevention practices) is to be careful not to overspeed any cooling fans. On desktop systems I will hold the fan blades stationary using my fingers or a small screwdriver when blowing directly on them. With laptops you can't generally access the fan to hold it stationary so smaller bursts and less pressure should be used to prevent overspeeding. Scott.


Top 
 Profile  
Reply with quote  
 Post subject: Re: Air Compressor 90 PSI Max to Blow Dust From Inside Compu
 Post Posted: Thu Jun 21, 2012 9:29 am 
Offline

Joined: Tue Nov 24, 2009 11:27 pm
Posts: 111
Once again, I truly appreciate your advice.
Thank you,
DLH


Top 
 Profile  
Reply with quote  
 Post subject: Re: Air Compressor 90 PSI Max to Blow Dust From Inside Compu
 Post Posted: Mon Feb 24, 2014 10:00 pm 
Offline

Joined: Thu May 31, 2007 8:37 pm
Posts: 200
Location: St. Louis, MO
Scott wrote:
For laptops no disassembly is required. The cooling ducts in a laptop are generally sealed such that the CPU fan both draws air in as well as exhausts air out through one or more interconnected ports. Thus if you blow in one port, the air (and dust) will come out through the others. I also turn the system upside down and blow out the keyboard as well. Scott.


I know this is pretty old, but, I've always disassembled laptops to give them a thorough cleaning. I've ran into many occasions where a layer of dust is sandwiched between the outlet of the CPU fan and the heatsink fins. It seemed that it would not be possible to liberate the dust without separating the two components, which also gives you a chance to apply fresh heat compound to the processor.

However, one thing is sure, I don't have such an air compressor to use. That might make the difference.


Top 
 Profile  
Reply with quote  
Display posts from previous:  Sort by  
 
Post new topic Reply to topic  [ 4 posts ] 

Board index » Upgrading and Repairing Forum » Desktop PC Hardware


Who is online

Users browsing this forum: No registered users and 3 guests

 
 

 
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
cron