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Old 06-13-2020, 01:37 AM   #1
dilbert_uk
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Keeping cockroaches out of the computer


Recently, I had a fault on a motherboard due to cockroach droppings.

It's a PC that hasn't been in use for a long time. Probably, I used it about three years the last time and about one year ago, I noticed that it didn't come up anymore.

Now, examining the reason for that, I found droppings of cockroaches on the motherboard that provoked a short-circuit presumably.

With a new motherboard now, I put a small vessel with mint oil in the case of that PC.

Any other ideas or someone has made some observations about that issue, please?

Do cockroaches hide in computers, too, that are used daily? My concern is only to keep those cockroaches out of my equipment. It seems to me unfeasible to eliminate them all in my apartment as I don't have a kitchen and all food is already in closed food storage boxes as I am living in a tropical country.

Therefore, I am only concerned of keeping them out of all my electronic equipment like oscilloscope, computers etc.
 
Old 06-13-2020, 02:00 AM   #2
syg00
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Surely in Peru you have a good selection of spiders. We have a couple of huntsmen in the house most of the time and I've never had that problem.

Worth a try ...
 
Old 06-13-2020, 03:11 AM   #3
ondoho
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Mint oil will dissipate evtl.
I would cover all holes with a mesh fine enough that roaches cannot get through.
A mesh, because ventilation still needs to happen.
 
Old 06-13-2020, 05:25 AM   #4
syg00
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Make sure your motherboard is vertical - droppings drop off. KISS.
 
Old 06-13-2020, 05:27 AM   #5
hazel
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You had a bug in your system.
 
Old 06-13-2020, 07:23 PM   #6
frankbell
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Hazel, you just couldn't stop yourself, could you?
 
Old 06-14-2020, 03:08 AM   #7
captain_sensible
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Mint oil will do nothing anyway basically there are 2 approaches :

1) use cockroach traps which have a pheromone lure and can intercept and trap roaches . There is a brand called HoyHoy which are really effective

2) I don't think you are will easily be able to get hold of it but there is professional cockroach bait eg Maxforce in gel form. If you can get hold of Boric acid then circa 2.5 % w/w in a suitable base would work.

By the way when insects die inside your PC eg Termite fly ; next Pharaoh Ants come along- they are worse than roaches. I am bound for Ghana in a month or so, but prepared myself with products.( i used to be an entomologist )
 
Old 06-14-2020, 09:27 AM   #8
dilbert_uk
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Thanks for all your replies so far.

@syg00
There are some spiders around here but I have never seen any free running spiders. Only a few web building spiders who are very shy and only come out in the dark so that at day their web is empty. They have been around all the years and have done nothing.

And, yes, the old motherboard was in a vertical position, the same as the new board as well. The man from the repair shop told me that the droppings are first liquid even if we see them always as solid only. The same thing as with droppings from lizards and geckos.

@ondoho
@captain_sensible
Apart from those cockroaches there are only a species of very tiny ants here. The same size as they have been in the UK, too. Lima lies in a desert with 16 mm annual precipitation. No plant at all exists here without watering. Only those cockroaches are very common and if you kill all of them there is already reinforcement on the way. Ants is easier, because if there is no food, they don't come to disturb you. But cockroaches seem to be stubborn idiots. I don't understand why they are around if I don't let them any food.

Since I am working much more at night, they seem to be less. They got a problem with light and I have read that they got a problem with strong odors, too, as it inhibits their sense for smelling food.

I don't care if they walk around uselessly and it seems that I cannot prevent it neither. Generally, I never see them. Only sometimes, coming at home and switching the light on. And being observant, registering their droppings. I know that I can bait and kill them. But I don't have a real infestation. And after some time, the next generation of them will be back again. I only want to prevent them from hiding in my equipment. Because they have preferred places where they hide. I only want to make my equipment as hostile as possible for them.

Mint oil or similar stuff seems to be a good measure for that. But maybe even the daily use of equipment makes them to stay away from using it as their preferred hiding place? At least, I'll check my equipment regularly, now.
 
Old 06-14-2020, 12:42 PM   #9
captain_sensible
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there are two reasons roaches are in your PC:

1) roaches like to hide in dark places with crevices

2) for the relative warmth

post a pic of roach and i will see if i can identify
 
Old 06-22-2020, 08:18 PM   #10
dilbert_uk
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The cockroaches are the same as the typical species here, the American Cockroach, Periplaneta americana. I haven't seen any others and if there are any subspecies doesn't matter.

A photo you can find here at Wikipedia: https://upload.wikimedia.org/wikiped...-cockroach.jpg.

As I mentioned in my first post, this particular PC has been unused for about two years until I noticed that it doesn't start up anymore. Nobody has now responded to this, so I don't know if cockroaches hide also in PCs that are used on a daily base.

On the other side, I cleaned up a closet sort of cupboard and the drawers of my desk, and I found two other places where they did hide, too. I have put there now some small vessels with mint oil and it seems to work, so far. Those croaches haven't come back. I cannot shut completely my apartment against cockroaches and I don't care actually as I don't almost never see them. I only want that they don't damage my equipment.

Putting a mesh around everything is quite laborous and cumbersome and I have kept reptiles for quite a long time and insects to feed them and know therefore how complicated such a task is.

Last edited by dilbert_uk; 06-22-2020 at 08:20 PM.
 
  


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