I have an annoyance problem with my Dell Inspiron 15R SE. It's an old laptop I bought back in 2012, but barely used it. A while ago I wanted to give this laptop another try and installed Windows 7 and Ubuntu 16.04 LTS alongside on it. Both performed fine, but on occasions I noticed that the laptop would suddenly power off. I can't tell exactly where this started, but I recall it happened as early as in the BIOS screen before an OS even booted. I later formatted the disk, but it's still happening.
It happens as follows: When I press the power button, the laptop will power on and do its BIOS initialization stuff. Then sometimes the fan will suddenly go up to 100% speed and a second later the machine will lose power and black out (I'm on AC power; battery is removed). I have to press the power button again to start it. This happens only once or twice (rarer) after I power it on or maybe it doesn't happen at all. Just yesterday (and a number of times previously) the device booted fine to a console on a linux OS I have currently installed to HDD. When I logged in and typed "startx" to bring up X11 desktop, the same thing happened - fan went to 100% and a second afterwards the PC lost power. Had to "re-boot" it and then it worked fine. This happens only once or twice in a row or it doesn't happen at all.
I've searched the internet a bit, and most results are describing overheating issues. But I know it's not overheating because it only seems to happen initially i.e. after the laptop has been powered off for a long time (like overnight). But after successfully booting to desktop it doesn't happen any more. I can use it normally, browse the web, do IRC chat, watch videos, use various programs, issue console commands, do heavy CPU processing i.e. compiling with gcc, scan local network, run RF spectrum analyzer software (gqrx), etc. Once the device is powered on for a while the crash will stop happening. I think I even tested rebooting it afterwards without it happening.
Does anyone know what could be the cause?
- It happens only initially before the laptop warms up, doesn't happen later.
- It's not an overheating because it also happens when the laptop is cold, doesn't happen on stress testing, and the fan is clean.
- It seems to happen at random points of OS startup - I recall it happened in the bios init screen and in linux console, but there were definitely other examples.
- It's not OS-specific problem because it also happens before an OS boots i.e. in BIOS initialization screen.
- A notable event is that just 1 second before the crash the laptop fan goes up to 100% so perhaps this has something to do with the firmware?
- hamluis: Before you suggest to install MiniToolBox, please note that I'm not running Windows; I'm trying different linux distros.
Thanks in advance.