How to set up sound output on Asus Z99?

Question

laptops

Recently I received a half-killed laptop Asus Z99 (Intel Celeron M CPU 520 @ 1.60GHz) with a torn off display, I thought to use it in tandem with an external monitor, but I managed to "sew" the display. Installed Runtu lite. Everything works except the sound. Help set up.
Installed Ubuntu 12.10 and 14.04, still live 14.10, no sound. Before me, there was Win-XP, the sound worked, but everything slowed down, so I installed Linux.
In lshw, the laptop model is listed as A8He, on the laptop case as Z99H. There is only a dummy output in the sound settings. There are two items in alsamixer and . Initially there were [MM], turned on [00], no changes. In the players, the music seems to be playing, the progress bar is on, but without sound.
Advanced Linux Sound Architecture Driver Version k3.13.0-44-generic.
uname-a
Linux abc-asus 3.13.0-44-generic #73-Ubuntu SMP Tue Dec 16 00:23:46 UTC 2014 i686 i686 i686 GNU/Linux
/proc/asound/cards
0 [Intel]: HDA-Intel - HDA Intel
HDA Intel at 0xfeb3c000 irq 44│
/proc/asound/devices
1: : sequencer
2: [ 0- 6]: digital audio playback
3: [ 0- 6]: digital audio capture
4: [ 0- 1]: hardware dependent
5: [ 0] : control
33: : timer
/proc/asound/pcm
00-06: Si3054 Modem : Si3054 Modem : playback 1 : capture 1
lspci -k | grep Audio -A2
00:1b.0 Audio device: Intel Corporation NM10/ICH7 Family High Definition Audio Controller (rev 02)
Subsystem: ASUSTeK Computer Inc. Device 1443
Kernel driver in use: snd_hda_intel
cat /proc/asound/car*/co* | grep Codec
Codec: Motorola Si3054
aplay --list-devices
**** PLAYBACK device list ****
card 0: Intel [HDA Intel], device 6: Si3054 Modem [Si3054 Modem]
Subdevices: 0/1
Subdevice #0: subdevice #0
gksu 'alsa force-reload' Loading ALSA sound driver modules: snd-seq-midi snd-seq-midi-event snd-seq snd-rawmidi snd-seq-device snd-hda-codec-si3054 snd-hda-intel snd-hda-codec snd-hwdep snd-pcm snd-page-alloc snd-timer. dmesg | grep snd [ 17.321829] snd_hda_intel 0000:00:1b.0: irq 44 for MSI/MSI-X
Unloading ALSA sound driver modules: snd-seq-midi snd-seq-midi-event snd-seq snd-rawmidi snd-seq-device snd-hda-codec-si3054 snd-hda- intel snd-hda-codec snd-hwdep snd-pcm snd-page-alloc snd-timer (failed: modules still loaded: snd-hda-codec-si3054 snd-hda-intel snd-hda-codec snd-hwdep snd-pcm snd-page-alloc snd-timer).