- Aug 31, 2013
- 7
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- 10,510
When I shut down my OS, whether it's GNU/Linux, Windows, or another GNU/Linux distro, most of the time my computer will stay turned on after the OS has shut down, and I can still hear the fan blowing. In that state, the power and reset buttons don't do anything, even when I hold them, and the only thing to do is disable the power plug. I have an ASUSTeK M2N-CM DVI motherboard.
Some remarks:
As regards to software, I've tried resetting the BIOS and updating it to the latest version. Hardware-wise, I've tried opening the case and resetting the BIOS by moving the jumper around as instructed in the manual.
There was one small problem with this. One version of the manual said moving the jumper was enough, but another one said the battery has to be removed while moving the jumper, and after the jumper is restored to the original position, the battery can be placed back as well. There was a metal plate in the way, which made it a lot harder. I did manage to move the jumper, but it was hard to budge the battery and I'm not sure if I removed it. It was moved only a little bit, and to check if this was enough, I decided to power on the computer. It did turn on and the fan started blowing, but I was unable to enter the BIOS and all I had was a black screen. I'm not sure if that means the battery was removed or not. I pushed the battery back in properly, and the computer ran fine. All in all, I'm not really sure the BIOS hardware reset worked.
In any way, none of this works and I'm still unable to power off my machine properly. Any ideas?
Some remarks:
■Once in a while it will shut down correctly, but there's no pattern;
■I've replaced the power supply once but it has worked fine this way for years;
■ I've unplugged the CD/DVD drive so I can use that cable for a fourth HDD (thought I highly doubt that matters).
As regards to software, I've tried resetting the BIOS and updating it to the latest version. Hardware-wise, I've tried opening the case and resetting the BIOS by moving the jumper around as instructed in the manual.
There was one small problem with this. One version of the manual said moving the jumper was enough, but another one said the battery has to be removed while moving the jumper, and after the jumper is restored to the original position, the battery can be placed back as well. There was a metal plate in the way, which made it a lot harder. I did manage to move the jumper, but it was hard to budge the battery and I'm not sure if I removed it. It was moved only a little bit, and to check if this was enough, I decided to power on the computer. It did turn on and the fan started blowing, but I was unable to enter the BIOS and all I had was a black screen. I'm not sure if that means the battery was removed or not. I pushed the battery back in properly, and the computer ran fine. All in all, I'm not really sure the BIOS hardware reset worked.
In any way, none of this works and I'm still unable to power off my machine properly. Any ideas?
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