Motherboard: Asus H97 Pro Gamer
CPU: Core i7 4790
GPU: Zotac GTX 970
RAM: 3x 8GB Kingston HyperX
HDD: 2x 1TB Western Digital Blue
7 months old
My PC has developed a problem where on a cold boot (leave it off for the night), it would power on with the lights and fans running, and then shut down for a few seconds before attempting to power on again (I believe this is similar behavior to a failed overclock?). It would do this once or twice before successfully booting. When it boots, it seems to work fine.
There are a few more frustrating things about this problem. First of all, it is intermittent. It doesn't happen every day. Also, when I leave it on for a few minutes and power it down it would boot fine, so I can't even try to fix it by removing components at this point. Second, and more peculiar, is that this is the second build that this has happened to. My previous PC had this behavior as well, and while it started out quite benign and intermittent (like my current build) it progressed to the point that it would keep power cycling and refused to boot which is why I replaced it. On the plus side, while my old PC would get a performance hit whenever it had trouble booting (lower FPS in games and graphics programs, more crashes), my current PC seems to run fine.
There are a few odd details that lead me to believe that this might be an environmental issue, but it could also just be coincidence. My old PC first started having problems when I left it off for a few days due to being stranded in a storm. Right now it's the start of the rainy season where I live. And that thing about the problem being intermittent? When the problem happens, it rains hard later on in the day (my PC can predict the weather. Hooray?). Things also seem to rust awfully fast where I live, so I'm guessing the humidity is pretty high here. I have no idea how environmental factors can affect how a PC runs, but could high humidity cause this kind of behavior? Is there any way to protect my PC from this if this is the case? I've thought about sticking a bag of silica gel into my PC case, but I don't know how safe that would be. Any suggestions?