Warm air coming out of your vents is actually a good thing (contrary to popular belief that warm air means your cooling isn't working). That's because it's pulling the warm air out of the system, and if yours doesn't feel warm after a while, it could be that your ventilation is not working to the best of its ability. The thing that confuses me (and you as well) is that you say it'll crash only a few minutes after it's been turned on. While it's possible your CPU could heat up that quickly, there could be more going on. If you say your AC adapter shorted out recently, maybe (I'm grasping at straws here) there's a minor buildup of static electricity in your system. You could try removing your battery, holding down your power button for at least thirty seconds, replacing the battery, attaching your adapter, and booting it up. See if it crashes after that. If it still does, then the only thing I can think of is some sort of heat dissipation problem.I'm not sure, but the computer rarely feels very hot when it crashes.
I tried this, and like all the other fixes I've ever tried, it worked for a few hours and then the problem came back. I really think it's a heat problem, but I don't think that's the root of the problem if that makes sense. I don't notice my fan turning on very often, even after setting it to active. Unfortunately my BIOS is very lacking and doesn't have options to adjust the fan there either. I'm wondering if there's bad communication between the hardware and Windows 10, and the computer just can't figure out when to turn on the fan. This doesn't completely explain the problem though, because even after being off for hours and turning the computer on while plugged in it immediately shuts off. I've never once had the issue on battery power alone. If it were purely a heat issue, I would think it would occasionally happen on battery power as well.You could try removing your battery, holding down your power button for at least thirty seconds, replacing the battery, attaching your adapter, and booting it up. See if it crashes after that. If it still does, then the only thing I can think of is some sort of heat dissipation problem.
I've already opened up the laptop and cleaned everything out, replaced the fan with a new one, and have replaced the thermal paste twice.Overheating laptops, for me has been caused by plugged vents and poor thermal paste on the CPU.
I read through the entire thread you linked to. That's definitely the problem I'm having, I'm surprised I didn't run across that thread over the last few months trying to solve this issue. I'll try calling Lenovo tomorrow, but my warranty is expired, so I doubt there's much they'll do for me. It's disappointing though because it seems to be a common issue, and it wasn't a cheap laptop. Maybe they'll surprise me though. Worst case scenario, is there anything I can do assuming they won't help?This may be a hardware issue. You don't appear to be alone in this. I'm not sure there's much you can do; it appears to be an A/C port issue or a motherboard issue. I assume your warranty has expired?
I contacted Lenovo today, and the representative said he has escalated my claim to upper management. He said that despite my computer being out of warranty, they may still grant me a complimentary repair because he confirmed that my issue is widespread. I'm hoping and praying that upper management agree with him, and fix this for me because I don't have the resources or know-how to perform the fix you mentioned.Of course, you'll need to have adequate knowledge about dismantling a laptop
