7 Months would be way too long for me, I'd go crazy and start blowing stuff up. Or I'd just buy another PC.
My current gaming PC just became sort of "half-dead" 24 hours ago and I already feel my sanity slipping. The bloody thing had been having trouble for a while now, booting it after prolonged periods of inactivity would result in getting stuck at RAM detection. I had to let it warm up for a while and shut it down and boot it up again, and then It'd get to POST. Most of the time. Changing the RAM didn't help one bit.
Sometimes it'd get stuck on USB INIT too, though that was rare. Had a few HDD write/read failures too, and lots of GPU problems. Now my GPU's (an old Geforce 9800GTX) gone bonkers, started shoveling loads of BSODS at my face, and showing pretty colored dots and lines all over my screen. Even the DOS-style POST screen is all messed up.
Still, I managed to boot in safe mode, and didn't get and BSODS there. Uninstalled drivers, and installed more recent ones. Doesn't crash anymore, but device manager says "the device won't start" and I can't play any games. Still getting weird visual artifacts on the boot screens too, and they're getting worse. Strangely though, I don't get any artifacts once I'm in Windows.
I'll try changing the motherboard tomorrow. I actually have a spare one gathering dust. I just don't have any thermal paste, which I'll need to re-apply for the CPU. Hopefully it's the source of all my problems. And if it isn't, well I'll be annoyed. This PC is over 5 years old, and I was going to get a new one soon. But I'm not quite ready for that yet, and might not be for a few months.
I suppose the culprit could also be the PSU, considering the range of issues I've been having. But the MB seems more likely. The GPU's probably busted too, and it'll be a pain to find a replacement that's both cheap enough and gives me comparable performance.
At least I'm not worried about my hard drives. And even if I manage to make them explode, I still have backups.