I have a Dell XPS 435MT with a 1st gen i7 CPU.
Had it for a few years and then gave it to my friend.
He used to for a year or two with the tower being under his desk.
It's a very compact space and he left the PC on nearly 24/7.
Eventually he said it was running poorly and he wanted to upgrade.
I helped him find a new PC and took his old one.
I used compressed air to clean the system out and then powered it on.
When I ran Speccy to check out some temps, I saw the motherboard had a temp of 79 (celsius).
I thought maybe the thermal compound needed to be reapplied so I went ahead and did that.
This didn't help at all. I also wound up removing the data on the drive because I attempted to reinstall Windows. This didn't work out very well. It just shut off halfway through the install so now I can't get into Windows to run any diagnostics or anything.
The fans kick into high gear immediately upon booting so the fans are working. I'm at a loss as to what could be causing this issue.
I definitely don't want to toss the PC as it's a pretty decent machine and I need it as a spare.