Ubuntu 14.04 suddenly reboots

satimis · 07-03-2015, 10:13 AM

Hi all,

Ubuntu 14.04 suddenly reboots

host - Ubuntu 14.04 desktop 64bit
guest - Ubuntu 14.04 desktop 64bit
Oracle VirtualBox
Firefox

Recently on browsing Internet Ubuntu suddenly reboots frequently. This happened on both host and guest. Please advise where shall I check and how to fix the problem.

Thanks

Regards
satimis

ardvark71 · 07-03-2015, 10:28 AM

Hi...

If the system itself (leaving out any VM) is constantly doing this, one thing to check is the capacitors on your motherboard. Bad capacitors can cause this kind of behavior. Please see here.

If you have a laptop, doing this is going to be a lot more involved so if you're not comfortable taking your laptop apart, you might want to take it in to a computer repair shop.

Regards...

satimis · 07-03-2015, 11:29 AM

Quote:

Originally Posted by ardvark71

Hi...

If the system itself (leaving out any VM) is constantly doing this, one thing to check is the capacitors on your motherboard. Bad capacitors can cause this kind of behavior. Please see here.

If you have a laptop, doing this is going to be a lot more involved so if you're not comfortable taking your laptop apart, you might want to take it in to a computer repair shop.

Regards...

Hi,

Thanks for your advice.

This is a new box built about 2 months

Motherboard
sudo dmidecode | grep -A4 '^Base'

Code:

Base Board Information
        Manufacturer: ASUSTeK COMPUTER INC.
        Product Name: M5A97 LE R2.0
        Version: Rev 1.xx
        Serial Number: 141235722500456

AMD 8-core CPU
1TB SSD
32G RAM

I can't predict when this problem will happen. Sometime it worked for a whole day without problem. Another time the PC suddenly rebooted and happened twice in an hour.

Regards
satimis

ardvark71 · 07-03-2015, 12:02 PM

Hi...

If these are all new parts, then it could be a defect in one or more of the parts, memory incompatibility, or perhaps a heating issue.

It appears you're not the only one who's experienced this same problem with this board....

http://www.tomshardware.com/answers/...-randomly.html

http://www.tomshardware.com/forum/38...-crashing-help

Regards...

satimis · 07-03-2015, 04:59 PM

Quote:

Originally Posted by ardvark71

Hi...

If these are all new parts, then it could be a defect in one or more of the parts, memory incompatibility, or perhaps a heating issue.

It appears you're not the only one who's experienced this same problem with this board....

http://www.tomshardware.com/answers/...-randomly.html

http://www.tomshardware.com/forum/38...-crashing-help

Hi,

Thanks for your advice and links.

All parts are new.

free -m

Code:

             total       used       free     shared    buffers     cached
Mem:         32078       1726      30351         21         44        569
-/+ buffers/cache:       1112      30965
Swap:        32666          0      32666

The box is open. I have an external USB fan blowing on it. It only happened recently in about one week. I'll continue keeping eyes on this problem before contacting the ASUS agent.

Regards
satimis

widget · 07-04-2015, 02:43 PM

In mechanical parts, as in automotive or ag equipment, most mechanics with experience will tell you that the word new stands for Never Ever Worked. While this is an exageration intended to be humorous it does contain a large core of truth.

New doesn't mean it actually is a good part.

I have no trouble with my Asus M5A9FX with a 6 core cpu by the way. Love the thing.