No audio in my new Imac

Question

Hi everybody,
I have a problem with the sound of my Imac. I haven't sound!
In the audio-midi configuration there aren't any sound card or devices recognised...
Audio haute définition Intel :
This is the audio configuration that I have:
Identifiant du périphérique : 0x106B00A0
Identifiant de l’audio : 62
Appareils disponibles :
Haut-parleur :
Connexion : Interne
Casque :
Connexion : Combo
Microphone :
Connexion : Interne
Entrée ligne :
Connexion : Combo
Sortie S/P-DIF :
Connexion : Combo
Entrée S/P-DIF :
Connexion : Combo
In the others Imac in my office the "Identifiant de l’audio " is 50. I think it's the only different that I found. Somebody can help me to find the solution or the problem?

Answer 1

Hello, again:
Were you able to make sense of the sequence of steps and
what the author of this post was trying to relate to the party
with the problem?
No sound:
http://discussions.apple.com/message.jspa?messageID=6499886#6499886
There are things which may invoke the system to rebuild these missing
parts automatically; once it realizes they are missing (or due to other
parts you may need to remove, so that it will.
Since your computer has some moved-over preferences from the previous
computer which was a different configuration and processor series, this
may be an issue which takes time. Or, it may be resolved by using the
Installer disc to boot the computer and perform an "Archive and Install"
and be sure to read up on this topic from the Apple support database.
The issue probably related to the migration assistant or other means
used to move the old user files and other stuff into the new computer;
and there may be issues. So, the 'A&I' answer may be the way to go.
If you have access to the bootable installer discs which came with the
Mac, it is possible to do some maintenance, such as use Disk Utility
from that booted disc's Installer menu (while not launching Installer)
and run Disk Utility's 'repair disk' and then run 'repair disk permissions'
and then quit D.U., then choose Startup Disk from the utilities menu
in the Installer's window (the menu bar for this is the only access you
need, once you start the computer from the install DVD by holding the
C key down; and the first window is the language window, note the
first window(s) have no finder-like menu bar? Only proceed in the Install
to the point where this menu bar on the top of the screen appears...
Resetting the PRAM/NVRAM may help; but the messup could be fixed
at another level of access; & I am not familiar with that single-user mode.
Instead, I rely on simple things (including making full system clones on
external bootable firewire hard disk drives, etc) and prefer to try stuff
like SafeBoot -- on startup or restart, hold the Shift key down, and at
some point you will see a login window, and it should say SafeBoot, so
you proceed; then when you get to a desktop, use GO in the Finder menu
bar to get a shortcut to Utilities (folder) and open it; choose Disk Utility
from the folder contents, and launch it. Choose (click) on name of the
computer in the left-side column, and then see the buttons you can
choose in the Disk Utility window, one is "repair disk permisions" the
others are of no consequence here; run repair disk permissions, then
quit the D.U. and restart the computer normally. This may not help.
But if you have never run repair disk permissions, it can't hurt.
After migrating a system to another computer, you may have to check
several things in it to see what is messing up the new hardware.
At this hour (1:24AM) I am not really able to specify in detail any steps
to check or perform on this process to resolve this issue; so hopefully
it won't be as involved as a new archive and install (and be sure it saves
user settings in new system it will install on the Mac's hard drive...)
But the archive and install is likely the ticket...
Good luck & good night!