Ubuntu – Cannot shut down on 13.10 and 14.04

13.10 has been re-installed on my i3. I cannot shut down or log out. The power button menu does not help and sudo shutdown -h now also did not help. Can you advise? Other suggestions to my query have been tried. I am still unable to log out or shut down.

Computer spec:

CPU: Intel® Core™ i3-4130 CPU @ 3.40GHz × 4 ; Intel® Haswell.
Motherboard: Intel Round Lake dh87rl Lga1150

If I select and click on Shut Down and hold down the power button for a count of 10, the machine will power off.

I have pressed F2 to Enter Setup when the machine reboots. Nothing happens. F7 to Enter Bios also does nothing. F10 to Enter Boot Menu made the PC freeze. I had to force a shutdown.

Sudo shutdown -h produced following message. The link is on Imgur: imgur.com/ud9ECnA

I Upgraded from 13.10 to 14.04 on 21 April 2014. The machine still does not shut down. I have to hold down the power button or 14.04 automatically reboots.
My kernel is 3.13.0 -24-generic #46-Ubuntu SMP Thu April 10 19:11:08 UTC 2014 x86_64 x86_64 x86_64 GNU Linux

sudo shutdown -P now or sudo poweroff and sudo shutdown -h now do not help. Halt -p produces:"halt: Need to be root." sudo halt makes the machine freeze. sudo halt -p does not help. The machine reboots immediately.

I did not know how to enter Bios. Wakeup on Lan is disabled. The problem is solved.