Cleanup for lower temps, quieter operation. UPDATED (56k warning) - Overclock.net - An Overclocking Community

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Cleanup for lower temps, quieter operation. UPDATED (56k warning)

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post #1 of 77 (permalink) Old 10-03-2010, 03:44 PM - Thread Starter
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Update here (cleaned another rig).
Also: Metro Vacuum DataVac Club

My daughter's computer has been getting quite noisy. Often it is the only thing you can hear in a smallish room with three computers going.

The computer is built in an Antec NSK 4480II that I bought a year ago for my first build, when I knew nothing about computers and I had to replace my dead Dell in a big hurry. I feel completely betrayed that this steel box was sold to me, and is still being sold:



You can't really see the dust on the side of the case - most of it was wiped off. But you can see the dust in the holes between the faceplate and the front bezel. Here's a closeup:



See any place for a filter? That's right: no place for a filter on this case that was designed for negative pressure.

Exploded view:



The prominent yellow cable that feeds 12 Volts to the vidcard actually hugs the left panel when the case is closed, so it is out of the airpath. There is no room behind the motherboard tray for any cable, so all of the extra cabling is stuffed at the top between the psu and the optical drive. Note that the HD is in a foam cradle at the bottom of the case. It didn't get any more air where it was, and the case transmitted vibration despite rubber bushings.

You will note that the San Ace 9S1212L401 is the only fan in the case. See item 2. in my sig for why a heatsink fan can act as a case exhaust fan. Suffice to say, when a steel "grill" (sidewall with holes cut in it) is removed it is much easier to move air through it. The fan itself is a 120x25mm seven-bladed fan that runs about 1500 rpm. Yet sitting in the middle of the case and pushing all its output through a Prolimatech Megahalems, this little fan sucked enough air in that dust accumulated despite the six unused PCI slots being empty.

A second note: the 9S1212L401(Low speed) is one of the San Ace Silent series fans. Similar fans, but as M (medium speed) and F (fast) are found in Seasonic X-series psu's and psu's made by Seasonic for other brands.

Note the dust on the fan. You can see it better here:



You can see much of the front intake grill here. Too bad it's behind a faceplate that restricts airflow.


Dust:



We are fostering an African Grey parrot, which sheds particles of down from the tips of its feathers. Cockatoos and cockatiels are worse.

A closeup of dust on the fan blades:




Then I hit it with

(Metro Vacuum DataVac - it's really a blower, despite its name). I used the medium nozzle. Because it's just a pump pushing air I didn't have to economize, as you would if you had a can of air. I put the nozzle on that back grate and blew it straight forward, reversing the normal airflow. The fan spun up quite nicely. I blew the whole thing clean. When I hit the noisy psu fan dust shot out the forward mesh of the psu. I felt like cackling with glee. Death to Dust!!!

The result:



All clean. And now the crappy little 80mm psu fan doesn't make so much noise either: it was probably unbalanced by the dust.

:



A parting view:



For all of its weaknesses, this case will hold a Megahalems. But I would heartily disrecommend it to anyone considering it.

Highly recommended:

San Ace Fans 9S and 9G fans.
Prolimatech Megahalems heatsinks.

and Periodic dusting.

UPDATE

Moved the computer to a new case a while back. Thought I might open it up to see if it needed cleaning. It did.

Check out: Clean up the Lian Li rig.
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post #2 of 77 (permalink) Old 10-03-2010, 05:53 PM
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I'm glad you took pictures of this whole thing.You're absolutely right about being economical with cans of compressed air, I may have to consider that duster. Great cleanup job!

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post #3 of 77 (permalink) Old 10-04-2010, 07:51 PM
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Ah I need to get this, but I can't justify spending $50 just yet on it, I'll be using a hair dryer for the time being

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post #4 of 77 (permalink) Old 10-04-2010, 08:31 PM - Thread Starter
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Quote:
Originally Posted by SecrtAgentMan View Post
Ah I need to get this, but I can't justify spending $50 just yet on it, I'll be using a hair dryer for the time being
It's $43-something with free shipping just now. Oh how I love it.
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post #5 of 77 (permalink) Old 10-04-2010, 08:52 PM
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Quote:
Originally Posted by ehume View Post
It's $43-something with free shipping just now. Oh how I love it.
The only thing I have now is a hair dryer to push it out and a 3HP shop-vac to suck anything out.

Is it bad if I put something like the shop vac's hose near anything?

By that I mean will static be made or will anything be short circuited?

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post #6 of 77 (permalink) Old 10-04-2010, 09:17 PM - Thread Starter
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Quote:
Originally Posted by SecrtAgentMan View Post
The only thing I have now is a hair dryer to push it out and a 3HP shop-vac to suck anything out.

Is it bad if I put something like the shop vac's hose near anything?

By that I mean will static be made or will anything be short circuited?
That's an excellent question. I have no clue.
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post #7 of 77 (permalink) Old 10-04-2010, 09:28 PM
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Haha damn it

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post #8 of 77 (permalink) Old 10-15-2010, 04:56 PM
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I've tried compressed co2 shooters and it works pretty baddly

i actualy used a shop vac once on reverse function made the nozzle on it fairly small and just shot all the dust out of my case was a lot of fun

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post #9 of 77 (permalink) Old 10-15-2010, 08:14 PM
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How much air does it shoot?

So compressed air can is 100%. Percentage-wise, how much air does it push?

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post #10 of 77 (permalink) Old 11-08-2010, 09:22 PM
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I will definitely be getting this in a few weeks. My heatsink +psu are in need of MAJOR cleaning.

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