Solved question about fingerprints on motherboard

May 20, 2016 at 11:41:26
Specs: Windows 7 Ultimate 64bit, qx9770 / 8gb ddr3
Hello. Will fingerprints and the oils on ones finger dissapear over time completely on a motherboard?

Thanks


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✔ Best Answer
May 21, 2016 at 20:01:29
If it's industrial grade IPA (99%), then it should completely evaporate. Consumer grade is more like 70% and has water or other fillers which may leave residue on the components/board. Personally, fingerprints wouldn't prove near as big a problem as dust (mentioned in DAVEINCAPS post above)...

"Channeling the spirit of jboy..."



#1
May 20, 2016 at 13:22:55
Why do you ask?

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#2
May 20, 2016 at 13:24:55
I am asking because i was handling a new motherboard with bare hands. I forgot to use my nitrile gloves. I also don't want to take it out and apply alcohol.

message edited by ckso2266


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#3
May 20, 2016 at 13:33:41
If the computer is running OK, don't worry about it. The only worry about handling computer components bare handed might be ESD (Electro Static Discharge) from your body. ESD can damage sensitive components. I have been building computers for 20 years and have never worn gloves. I take care with ESD by discharging my body BEFORE touching any components. If your power supply has an ON/OFF switch then keep the power cord plugged into a properly grounded recepticle. Touch the metal case prior to touching the innards.

While lecturing I will also warn you to NEVER use a vacuum cleaner on a computer. ESD builds up on the hose and can zap and kill components.


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Related Solutions

#4
May 20, 2016 at 13:45:58
Thanks for the reply OtheHill. However, will the fingerprints and oils eventually dissapear completely?

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#5
May 20, 2016 at 14:06:27
I don't think so. Finger prints can be lifted at crime scenes even years later. Again, why to you ask? Are you in the witness protection program, LOL?

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#6
May 20, 2016 at 14:12:42
I like my computers to be in pristine condition. Thanks for the help OtheHill.

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#7
May 20, 2016 at 15:02:03
The oils of a fingerprint will eventually evaporate but there will be a residue that remains.I have never heard of this being a problem but cannot rule it out entirely.

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#8
May 20, 2016 at 15:02:24
Ahhh... but your DNA will be all over it... and thus NSA, CSI, NCIS, MI5 & 6, the Mounties, SDCI, KGB - to name but a few... - will still know "you" were involved...

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#9
May 20, 2016 at 15:30:14
Although the gloves idea cannot be refuted, folk have handled boards with their bare hands for years and I've seen no evidence that it causes a problem.

However, in terms of what you said in #6 isn't the answer then to clean the motherboard? You might not want to (#2) but you can't have it both ways.

Always pop back and let us know the outcome - thanks

message edited by Derek


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#10
May 20, 2016 at 15:57:16
You're right Derek. Thanks.

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#11
May 21, 2016 at 00:49:13
The 'pristine condition' you desire won't last long once the PC is put into use and the cooling fans start blowing dust through the case.

More than once I've dripped blood in a case after slicing a finger on a sharp edge.


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#12
May 21, 2016 at 16:13:29
Ok so here's a followup. I took out the motherboard and i used 99% isopropyl alcohol in the areas where i handled it barehanded.

Anyone who is knowledgeable, can he or she please tell me if the alcohol could possibly damage or degrade the finish or the plastic of the motherboard in any way?

I looked online and i read that it wont do any damage at all. Can anyone confirm this?

Thanks


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#13
May 21, 2016 at 20:01:29
✔ Best Answer
If it's industrial grade IPA (99%), then it should completely evaporate. Consumer grade is more like 70% and has water or other fillers which may leave residue on the components/board. Personally, fingerprints wouldn't prove near as big a problem as dust (mentioned in DAVEINCAPS post above)...

"Channeling the spirit of jboy..."


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#14
May 22, 2016 at 04:59:03
All this sort of thing is a matter of scale. As an analogy you might be able to take steps to ensure you stave off cancer until you are aged 250 but it matters little because something else will surely get you first. Best to stop worrying I reckon.

Always pop back and let us know the outcome - thanks


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#15
May 22, 2016 at 07:34:35
The PCB of a motherboard is pretty tough stuff. Must be able to withstand high temperatures during manufacture and use.

I have not cleaned a motherboard with any solvents but have used Hot water, alcohol and even lacquer thinner on plugged up print heads, which have the same PCB attached without and apparent bad effects. Unplugged the nozzles in many cases too.


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#16
May 22, 2016 at 11:40:19
Thanks everyone for the replies.

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