Motherboard stays on after shutdown

JustAliens

Commendable
Apr 4, 2016
4
0
1,510
Hello,

I need your help to resolve a problem.

The short version is, that my (Pegatron) motherboard stays on when I shutdown my laptop. Although I found a couple of threads about the problem, the majority suggest that it is a psu/cable/memory problem.

The fully informative version:

I recently got a new ssd disk to upgrade my laptop's hdd. I plugged it through usb and partitioned it in NTFS format (following some tutorials about things to do when you can not see your new ssd in windows). I then replaced my hdd and tried to install windows 10. The disk was not showing up during the installation process, so (after another tutorial) I used a linux livecd that I had available (ubuntu mate) to made it unallocated. I started the installation process again, but the disk was showing up as 3 partitions. I picked the larger and installed windows, because I though that I could merge them later but for some reason windows refused to cooperate... I decided to plug in the old disk and get more informations before proceeding. Everything worked fine, until I decided to shutdown the laptop. The screen went black as normal, but the fan and the led indicators stayed on. I waited for about 30 minutes before using the power button. I tried to shutdown through ubuntu (I have a dual boot setup) but the same thing happened.

I did not touched any cable inside the laptop or any other component (or, at least, I did not notice so), just the disk, so I do not think that is the problem. I am more worried that while I had the ssd plugged in, windows downloaded something that messed up the previous setup.

Has anyone any suggestion?

Thank you in advance

PS: It may be irrelevant, but computer's time was also messed up.
 
Solution
The time being messed up may be the indicating factor here.

Have you tried clearing your CMOS?
Equally have you tried replacing the motherboard battery entirely?

Incorrect times on your PC can be an indicator of a faulty/dying motherboard battery. A bad battery I BELIEVE may also potentially cause the issues you describe.

PC Tailor

Illustrious
Ambassador
The time being messed up may be the indicating factor here.

Have you tried clearing your CMOS?
Equally have you tried replacing the motherboard battery entirely?

Incorrect times on your PC can be an indicator of a faulty/dying motherboard battery. A bad battery I BELIEVE may also potentially cause the issues you describe.
 
Solution

JustAliens

Commendable
Apr 4, 2016
4
0
1,510


Thank you for you answer. I will try clearing CMOS when I get home and I will update you.

I am not sure if the time is related because when I made the dual boot installation the time in windows was again messed up.


Update:

I tried to reset through BIOS but nothing changed :(.
 

PC Tailor

Illustrious
Ambassador
Yes but in dual boot you're still using the same motherboard and battery. If the time is still messed up it could be a sign of a dying battery, which resetting would do nothing, but it's an incredibly cheap fix.

How old is your motherboard?
 

JustAliens

Commendable
Apr 4, 2016
4
0
1,510


It is quite old, I bought the laptop at May 2012.
When I open the lid I do not see the battery, so it is either hidden or I can not recognize it. I will contact the constructor's service point to give me a hand.

PS: I should add that, as similar threads indicate, when the laptop hibernates/sleeps again the motherboard stays on and it is not waking up.

PS2: I just remembered another issue that might be connected. Some time ago, my battery was completely dead. I bought a new one and replaced it, but when I used it the laptop was shutting down randomly. I tried any software solution that I found but nothing changed. Then I came into someone saying the problem was due to slightly bended motherboard (https://superuser.com/questions/295142/laptop-shuts-down-in-an-instant-no-crash-log-no-overheating). Maybe there is indeed a problem with my motherboard and I am just ignoring the signals all this time.
 

JustAliens

Commendable
Apr 4, 2016
4
0
1,510
After visiting the service, a problem in motherboard's power circuit was detected.
Unfortunately, it is quite expensive (half the original price) :(.
I will consider if it is worth to fix it or keep the "wounded soldier" until its last breath and buy a new one...

So, case closed. We will never know if there was a CMOS problem or it was always a motherboard.
Thank you for your help, kind sir.

PS: I do not know how to pick this post as the solution, therefore I will pick the comment about the CMOS battery. I hope people will read the whole thread...
 

PC Tailor

Illustrious
Ambassador
Makes absolute sense. It was certainly a power related issue, which is why it was best to cover CMOS first, as this in comparison is an easy and incredibly cheap fix, if that didn't solve it, it would naturally move onto motherboard / PSU issues.

Sorry to hear its worse than just that, but I hope you get it sorted sir!