@fenderman - In my case, I have a several thousand machines spread across the country that run 24/7. Hard drive, power supply, and motherboard are the majority of failures that we see. Randomly we will see bad RAM sticks. Have never seen a CPU fail. These are machines that run Wonderware (an interactive GUI that interfaces with PLCs via touch screens.) We also implement on screen video panes for call ups, spot monitoring, and what ever else (I'll send you a link if you're interested). Most common cause of MB failure is bad caps. On any given day, I have several machines on my bench for repair (on top of what i am supposed to be doing). The issues impact all manufacturers.....including the robust Allen Bradley Versa View panel PCs that are designed to be used in rough conditions. In our facilities, they are in temperature controlled rooms.
To other posters - As far as water cooling, if you are taxing the system that hard, then you are not using the correct hardware for the purpose. Or you just want to say that you have a water cooled system combined with neon or LED case lights. My BI machine has been up and kicking for 6 or 7 years now...maybe longer. It's nothing special but it works fine. It gets shut down now and then for a periodic cleaning but it keeps rocking along. Just a standard off the shelf Dell. My cameras are set to motion, but I have the sensitivity set so high on most of them that they record almost 24/7. I get about 30 days of total recording time.....so if there was an incident that I needed to reference, I have plenty of time to look it up.
