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Well, Think I Found That Burning Smell
Old 09-26-2016, 03:40 PM   #1
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Well, Think I Found That Burning Smell

Over the past year, a few times I encountered a burning smell around my desk area but couldn't pinpoint the location but it had a burned electronics smell. I thought my battery back up was defective.

Haven't noticed that smell in awhile. But yesterday, I opened up the computer case to look inside for a planned upgrade (hard drive reader), when I noticed the look of three leaked capacitors (rust colored on top) on the motherboard.

That may very well be the cause of that burnt smell?

As of now, the PC seems to work fine. Haven't noticed any crashing or lagging. But, might be a good idea for me to jot down the name and number of the mother board and have it handy .
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Old 09-26-2016, 05:15 PM   #2
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Originally Posted by easysurfer View Post
Over the past year, a few times I encountered a burning smell around my desk area but couldn't pinpoint the location but it had a burned electronics smell. I thought my battery back up was defective.

Haven't noticed that smell in awhile. But yesterday, I opened up the computer case to look inside for a planned upgrade (hard drive reader), when I noticed the look of three leaked capacitors (rust colored on top) on the motherboard.

That may very well be the cause of that burnt smell?

As of now, the PC seems to work fine. Haven't noticed any crashing or lagging. But, might be a good idea for me to jot down the name and number of the mother board and have it handy .
Might be a good time to backup your system and/or personal files.
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Old 09-26-2016, 05:30 PM   #3
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Why not replace the motherboard now?
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Old 09-26-2016, 05:33 PM   #4
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Might be a good time to backup your system and/or personal files.
+1
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Why not replace the motherboard now?
+1
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Old 09-26-2016, 05:37 PM   #5
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Yeah, do it now. Don't wait until the thing burns your house down.
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Old 09-26-2016, 05:57 PM   #6
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Glad I recently got a fire extinguisher .
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Old 09-26-2016, 06:42 PM   #7
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Looks like I own a dud of a used computer. A Dell Optiplex which has a history of bad caps .
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Old 09-26-2016, 06:59 PM   #8
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Or just replace the caps...........
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Old 09-26-2016, 07:01 PM   #9
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I would save your stuff and get a new box. Hey they are cheaper than ever -

Don't tempt fate, it's not worth it.
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Old 09-27-2016, 12:37 AM   #10
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Is it under warranty?

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Old 09-27-2016, 05:26 AM   #11
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Another preventative tip: I take the cover off once per year and blast the motherboard and attached components with canned air. Those things really attract dust.
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Old 09-27-2016, 06:47 AM   #12
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I never understood why the fans blow air out of the box. That just allows more dust in through all the cracks and crevices. Why don't they reverse the fan so it sucks air through the fan? That way you could have a cleanable filter to keep the dust down? And the air would exit through the cracks.
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Old 09-27-2016, 07:45 AM   #13
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Dell products are garbage. I have had better luck with Lenovo boxes.
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Old 09-27-2016, 09:12 AM   #14
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Is it under warranty?

Support | Dell US
Nope. I bought used. Only reason why I bought was when XP was no longer supported and went to a Win 7 machine (now have Win 10 on the machine).

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Dell products are garbage. I have had better luck with Lenovo boxes.
+1. Seems like slim pickings for used computers at decent prices. Mostly either Dell or HP. Unless you want to go the gamer or self built route.
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Old 09-27-2016, 09:27 AM   #15
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Dell products are garbage. I have had better luck with Lenovo boxes.
I've owned three Dell desktops over the years (including my current one) and have never had any trouble. Lenovo makes good laptops but didn't realize they also made highly-regarded desktops.
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Old 09-27-2016, 12:43 PM   #16
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Looks like I own a dud of a used computer. A Dell Optiplex which has a history of bad caps .
Call them! My previous employer had them replace a lot of motherboards as part of a recall, 2008-2009 timeframe. They had a list of affected serial #'s. Same exact bulging capacitor issue.

Worth a shot!
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bad caps
Old 09-27-2016, 09:36 PM   #17
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bad caps

Yep, looks like my board is running on borrowed time.

The caps look worse in the picture than with the naked eye.
Attached Images
File Type: jpg capacitors.jpg (658.9 KB, 35 views)
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Old 09-28-2016, 06:51 PM   #18
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Or just get a Mac and don't worry about such things.

YMMV
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Old 09-28-2016, 07:07 PM   #19
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All electronic components have smoke built inside of them when they are manufactured. Once you let the smoke out, they will stop working.
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Old 09-28-2016, 09:25 PM   #20
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No it's the magic genies that escape in a puff of smoke. Make sure you don't rub those caps😜


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