cat hair stuck on all surfaces. Looked like a fungus was growing in there.
I used to carry them out to the nearby fuel station and borrow air from their tyre compressor. I figured nothing in the dirty air can be worse than what's in the PCs already
I have a toothbrush in my kit for cleaning out PC's when I don't have air. Client phones me and says her husband's PC is doing strange things. When I opened it, it was caked with the type of furry dust you don't just blow off. I stripped it, cleaned every component and voila - wekking hundreds.
I actually had a project management company with the presence of mind to contract me to clean their computers on a regular basis, once. It's such a shame that people don't think that way, because a lot of people keep their computers for years and years, and never have them cleaned. It's no wonder they're always replacing components, and as far I can tell the guy who serviced all the computers I am looking after now didn't even think to recommend a good cleaning to his clients - probably only interested in the clean aspect of the job, and not too keen on getting all dirty doing his job?
I just believe in advising my clients properly so they can get the maximum use from their gear, and not have to keep forking out for hardware. Saving them money makes them talk to their mates at the bar, or the golf club, or whatever, and that's how I have always gotten referals.
I'm not saying I don't make money on hardware, but my money comes from labour, which is just fine for me.
I work predominantly in fresh produce markets, the constantly moving diesel forklifts combined with trucks offloading and dust on the market make a thick sticky black gunk that swallows things. I have sometimes looked inside a pc, then closed it right back up and said it needs to be replaced.
As an aside you should wash *everything* that is fruit or veg related, its a disgustingly dirty environment.
It doesn't matter how clean the production environment is, the cleaner it is the more likely it is that PC's in that environment have detritus bunged up in them.
I am yet to see a clean environment though. "Company named after a male sheep" where Rainy and me worked for a while was across from a coffee plant and all the PCs had Frisco in them. One day I parked my car on the wrong side of the building and I had to wash the coffee off the windows before I could drive home. For a while I installed POS systems in restaurants and PCs in those kitchens are filthy inside. They suck in (I think) cooking oil or some fatty residue, and smoke that gets covered in dust and then a new layer of oil. Incidentally I stopped eating at Spur and Ocean-basket during this time. At the moment I support PCs in automotive workshops that also have quite a hard time.