The sound doesn't work at all on my Macbook Pro what do I do?

spineoft33th

macrumors newbie
Original poster
Nov 30, 2009
12
0
The volume is muted, but I can't un-mute it because I am unable to click on any of the sound options because they are all "grayed out". The little box next to mute is checked and I cannot un-check it because it's grayed out. Nothing works when I plug in headphones or speakers or anything, and there is no red light glowing where you plug the headphones or speakers in.
 

spineoft33th

macrumors newbie
Original poster
Nov 30, 2009
12
0
no i've tried rebooting and i never heard any start up chimes.

if it's something with the sound card how would i go about fixing it? i know with an airport card you can buy them yourself and install them yourself. is it the same with a sound card?
 
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HLdan

macrumors 603
Aug 22, 2007
6,396
0
Reset the PRAM. Command+Option+P+R. Hold down the key command at start up.
 
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spineoft33th

macrumors newbie
Original poster
Nov 30, 2009
12
0
i've tried it a few times before already, just now again too. nothing happens. i don't even hear startup chimes.
 
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