Ubuntu turns of computer after 20 sec

Operating Systems & Open Source Linux
,
1

Hi have just decided to switch to ubuntu for my main computer.

Started by formatting my windows drive instead of the new drive i put in. YAY for me!

So after disconnecting all my other drives i installed ubuntu. I have a Nvidia gtx 970 and i had to change "quiet splash" to "nomodeset" to be able to install the os.

Now when i log in to ubuntu it runs fine for about 20 sec then my computer "dies", it powers down suddenly and reboot.

i have tried to install both 14.04.3 and 15.04 with the same result.

I have a custom water loop in my system (Hard Tube) so removing hardware to diagnose the issue is a problem:(

As a noob on linux i have no ides on how to find the crash files. i will try to find them but i thought id ask here meanwhile:)

Do anyone have an ides on what can make this happen.

Spec
ga-z97mx gaming 5
4770k
32gb kingston ram (maybe savage dont remember)
msi Gtx 970 g4
250 gb samsung Evo 850

//dinez

2

If you're using 15.04 you should be able to run

$ sudo journalctl --since=yesterday

to get a log of all the events since yesterday. If you have color enabled, you should be able to look for red lines, indicating possible errors. One of those might give us a hint, what's happening with your machine and why it gives up after 20 min.

1 Like
3

Hi
Well the computer only runs for about 20sec so I have a problem with going to the terminal.
Is there a way to access the terminal without starting the os. I have tried to type commands in the grub but I can't get it to do anything 😭

Best regards
Dinez

4

I would go in the bios and see if you have power saving feature responsible for that

Turn them all off and turn them on, one by one .(cpu throttling etc)

Good luck

5

Instead of loggin in press ctrl+alt+F2 or F3. Log in through the tty and see if that works. Then use the command @Dinez showed.

Try starting xorg via the tty terminal and see if it crashes.

6

This is very strange. Were you having problems before moving to linux? if you just sit at the login screen does it crash? if you do what @Quixotic_Autocrat said and do the ctrl+alt+f2 and log in does it crash then?

7

oh, I misread, thought it was 20 min, sorry. hm... What if you boot from a live usb? will it still only stay lit for 20 sec?

8

Hi sorry for my slow reply.

I disabled some of the power saving features on my motherboard and I think it was a setting that put the power supply in a power saving mode. or something like that. thanks for all the help:)

now i just have to learn linux:) so far i love it!

//Dinez

9

Awesome! Glad you got it working :)