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The small plastic fan on my MB stopped working.

Old 06-10-03, 04:22 PM
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The small plastic fan on my MB stopped working.

I cleaned my PC yesterday with one of those "duster cans" and when I plugged everything back and fired it up with the side panel open, I noticed that the small plastic fan on my Abit KT7 MB wasn't working. Of course, my big Orb fan still works fine and so does the extra case fan I had installed when I purchased the PC. I checked and my system isn't overheating at all. So does that puny little plastic fan serve a specific purpose? Should I replace it?
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Old 06-10-03, 06:41 PM
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The puny little fan usually cools the northbridge or southbridge chip and you really don't need it - but I'd put some sort of cooling on it - passive cooling would work just fine - but you won't see any overheating warning at all because there most likely isn't a temperature sensor nearby. If your cooling is sufficient and you have enough airflow in your case, it might be ok, but like I said - either replace the fan, or add passive cooling to it.
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Old 06-10-03, 06:55 PM
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Ok Blake, thanks a bunch.
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Old 06-11-03, 10:24 AM
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Re: The small plastic fan on my MB stopped working.

Originally posted by eXcentris
I noticed that the small plastic fan on my Abit KT7 MB wasn't working.
Pics?

Was it working right before you cleaned it?
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Old 06-11-03, 11:47 AM
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Re: Re: The small plastic fan on my MB stopped working.

Originally posted by icondude


Was it working right before you cleaned it?
Haven't got a clue! I opened the case to clean it so who knows how long it's been dead.

Here's some pics:



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Old 06-11-03, 12:16 PM
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I have an Abit KG7-Raid and this also happened to me sometimes. It sometimes works I think and some times doesnt, I havent had any problems yet.
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Old 06-11-03, 04:25 PM
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you can buy those at Radio Shack.
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Old 06-11-03, 08:31 PM
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A few years ago, the North Bridges started getting hot enough that if you were overclocking, you'd see improved stability at higher speeds if you had an actively cooled NB. So overclockers started putting fans on their NB and like all other overclocker features, motherboard vendors started including them in their boards even though regular users never needed it.

It's perfectly possible that the thing's been busted for a long time and your system is still perfectly stable. If it makes you feel better, you can replace the fan, but usually those things are loud enough that I'd rather do without them. In which case, I replace the fan by gluing a large passive heatsink to the NB.
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