Mac Mini sound goes to zero on its own.

I have had my mini since 2009. This issue has happened intermittantly since I got it but has happened several times in the last while. The sound output goes to zero. On it's own. I go into system preferences to sound and slide the bar back to my desired level and all is ducky until it happens again. I suppose I should have spoken to Apple about this when Applecare was still in play but it did not happen much. Silly me. Any ideas about the cause? I am guessing this is mobo related and a cure will be costly. If I go that route.
I run a line out of the headphone jack that splits to my amp and a set of headphones.

Well, it was just a shot at a possibilility.
Safe Boot, (holding Shift key down at bootup), & use Disk Utility from there to Repair Permissions, trash these files...
Users/YourUserName/Library/Preferences/com.apple.soundpref.plist
/Users/YourUserName/Library/Preferences/com.apple.systempreferences.plist
Reboot.

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2012 Mac Mini shuts down at night on its own.

Every night for the last week my Mac mini shuts all the way down at night. I have not made any changes to this machine it just started doing this on its own. When I reboot in the morning it tells me that the computer has shut down and then gives the following for the error report:
Anonymous UUID: E6A1AB4A-69C1-7F0F-E205-C4588CCB015A
Thu Jul 3 11:51:44 2014
panic(cpu 0 caller 0xffffff8027ed1066): trying to interlock destroyed mutex (0xffffff80715265f0)
Backtrace (CPU 0), Frame : Return Address
0xffffff8211f33680 : 0xffffff8027e22fa9
0xffffff8211f33700 : 0xffffff8027ed1066
0xffffff8211f33710 : 0xffffff802816017c
0xffffff8211f33730 : 0xffffff802816140e
0xffffff8211f33770 : 0xffffff8027fffbd0
0xffffff8211f337c0 : 0xffffff8027fdc148
0xffffff8211f33810 : 0xffffff8027fdb710
0xffffff8211f33850 : 0xffffff8027fe27d0
0xffffff8211f33880 : 0xffffff8027fda63f
0xffffff8211f33940 : 0xffffff8028010c6b
0xffffff8211f339f0 : 0xffffff8028012888
0xffffff8211f33a60 : 0xffffff8027ffd23b
0xffffff8211f33ac0 : 0xffffff8027fd5bfb
0xffffff8211f33b40 : 0xffffff8027fd5554
0xffffff8211f33c00 : 0xffffff8027ff1422
0xffffff8211f33d80 : 0xffffff8027fe96dc
0xffffff8211f33f50 : 0xffffff8028240653
0xffffff8211f33fb0 : 0xffffff8027ef3c56
BSD process name corresponding to current thread: automount
Mac OS version:
13D65
Kernel version:
Darwin Kernel Version 13.2.0: Thu Apr 17 23:03:13 PDT 2014; root:xnu-2422.100.13~1/RELEASE_X86_64
Kernel UUID: ADD73AE6-88B0-32FB-A8BB-4F7C8BE4092E
Kernel slide: 0x0000000027c00000
Kernel text base: 0xffffff8027e00000
System model name: Macmini6,1 (Mac-031AEE4D24BFF0B1)
System uptime in nanoseconds: 137393932698714
last loaded kext at 118189293439107: com.apple.driver.AppleUSBCDC 4.2.1b5 (addr 0xffffff7fa9ed3000, size 20480)
last unloaded kext at 116233964408599: com.apple.driver.AppleUSBCDC 4.2.1b5 (addr 0xffffff7fa9ed3000, size 16384)
loaded kexts:
com.symantec.kext.SymAPComm 12.6.1f9
com.symantec.kext.fw 5.3.1f9
com.symantec.kext.filesecurity 12.6.1f9
com.steelseries.BoardListener 8.28
com.logmein.driver.LogMeInSoundDriver 1.0.3
com.seagate.driver.PowSecLeafDriver_10_5 5.2.4
at.obdev.nke.LittleSnitch 4202
com.symantec.kext.ips 3.9.2f1
com.symantec.kext.pf 5.6.1f9
com.symantec.kext.internetSecurity 5.3.1f8
com.seagate.driver.PowSecDriverCore 5.2.4
com.apple.driver.AppleUSBCDC 4.2.1b5
com.apple.driver.AppleBluetoothMultitouch 80.14
com.apple.filesystems.autofs 3.0
com.apple.iokit.IOBluetoothSerialManager 4.2.4f1
com.apple.driver.X86PlatformShim 1.0.0
com.apple.driver.AGPM 100.14.15
com.apple.driver.ApplePlatformEnabler 2.0.9d1
com.apple.driver.AppleMikeyHIDDriver 124
com.apple.driver.AppleHDA 2.6.1f2
com.apple.driver.AudioAUUC 1.60
com.apple.driver.AppleLPC 1.7.0
com.apple.driver.AppleSMCPDRC 1.0.0
com.apple.iokit.IOUserEthernet 1.0.0d1
com.apple.Dont_Steal_Mac_OS_X 7.0.0
com.apple.driver.AppleHWAccess 1
com.apple.driver.AppleUpstreamUserClient 3.5.13
com.apple.driver.AppleMCCSControl 1.1.12
com.apple.iokit.BroadcomBluetoothHostControllerUSBTransport 4.2.4f1
com.apple.driver.AppleMikeyDriver 2.6.1f2
com.apple.driver.AppleThunderboltIP 1.1.2
com.apple.driver.AppleIntelHD4000Graphics 8.2.6
com.apple.driver.AppleIntelFramebufferCapri 8.2.6
com.apple.iokit.IOUSBAttachedSCSI 1.0.5
com.apple.iokit.SCSITaskUserClient 3.6.6
com.apple.driver.AppleIRController 325.7
com.apple.AppleFSCompression.AppleFSCompressionTypeDataless 1.0.0d1
com.apple.AppleFSCompression.AppleFSCompressionTypeZlib 1.0.0d1
com.apple.BootCache 35
com.apple.driver.XsanFilter 404
com.apple.iokit.IOAHCIBlockStorage 2.5.1
com.apple.driver.AppleFWOHCI 5.0.2
com.apple.driver.AppleSDXC 1.5.2
com.apple.driver.AppleUSBHub 666.4.0
com.apple.iokit.AppleBCM5701Ethernet 3.8.1b2
com.apple.driver.AirPort.Brcm4331 700.20.22
com.apple.driver.AppleAHCIPort 3.0.0
com.apple.driver.AppleUSBEHCI 660.4.0
com.apple.driver.AppleUSBXHCI 677.4.0
com.apple.driver.AppleACPIButtons 2.0
com.apple.driver.AppleRTC 2.0
com.apple.driver.AppleHPET 1.8
com.apple.driver.AppleSMBIOS 2.1
com.apple.driver.AppleACPIEC 2.0
com.apple.driver.AppleAPIC 1.7
com.apple.driver.AppleIntelCPUPowerManagementClient 217.92.1
com.apple.nke.applicationfirewall 153
com.apple.security.quarantine 3
com.apple.driver.AppleIntelCPUPowerManagement 217.92.1
com.apple.driver.AppleBluetoothHIDKeyboard 170.15
com.apple.driver.AppleHIDKeyboard 170.15
com.apple.driver.AppleMultitouchDriver 245.13
com.apple.kext.triggers 1.0
com.apple.iokit.IOSerialFamily 10.0.7
com.apple.driver.DspFuncLib 2.6.1f2
com.apple.vecLib.kext 1.0.0
com.apple.driver.AppleHDAController 2.6.1f2
com.apple.iokit.IOHDAFamily 2.6.1f2
com.apple.driver.IOBluetoothHIDDriver 4.2.4f1
com.apple.iokit.IOAudioFamily 1.9.7fc2
com.apple.kext.OSvKernDSPLib 1.14
com.apple.iokit.IOBluetoothFamily 4.2.4f1
com.apple.driver.X86PlatformPlugin 1.0.0
com.apple.driver.AppleSMC 3.1.8
com.apple.driver.IOPlatformPluginFamily 5.7.0d11
com.apple.iokit.IOBluetoothHostControllerUSBTransport 4.2.4f1
com.apple.iokit.IOFireWireIP 2.2.6
com.apple.driver.AppleSMBusController 1.0.11d1
com.apple.driver.AppleSMBusPCI 1.0.12d1
com.apple.iokit.IOSurface 91.1
com.apple.iokit.IONDRVSupport 2.4.1
com.apple.iokit.IOAcceleratorFamily2 98.20
com.apple.AppleGraphicsDeviceControl 3.5.26
com.apple.iokit.IOGraphicsFamily 2.4.1
com.apple.driver.AppleUSBMergeNub 650.4.0
com.apple.iokit.IOUSBMassStorageClass 3.6.0
com.apple.driver.AppleThunderboltDPInAdapter 3.1.7
com.apple.driver.AppleThunderboltDPAdapterFamily 3.1.7
com.apple.driver.AppleThunderboltPCIDownAdapter 1.4.5
com.apple.iokit.IOUSBHIDDriver 660.4.0
com.apple.driver.AppleUSBComposite 656.4.1
com.apple.driver.CoreStorage 380
com.apple.iokit.IOFireWireSBP2 4.2.6
com.apple.iokit.IOSCSIBlockCommandsDevice 3.6.6
com.apple.iokit.IOSCSIArchitectureModelFamily 3.6.6
com.apple.driver.AppleThunderboltNHI 2.0.1
com.apple.iokit.IOThunderboltFamily 3.2.7
com.apple.iokit.IOFireWireFamily 4.5.5
com.apple.iokit.IOEthernetAVBController 1.0.3b4
com.apple.driver.mDNSOffloadUserClient 1.0.1b5
com.apple.iokit.IOUSBUserClient 660.4.2
com.apple.iokit.IO80211Family 630.35
com.apple.iokit.IONetworkingFamily 3.2
com.apple.iokit.IOAHCIFamily 2.6.5
com.apple.iokit.IOUSBFamily 677.4.0
com.apple.driver.AppleEFINVRAM 2.0
com.apple.driver.AppleEFIRuntime 2.0
com.apple.iokit.IOHIDFamily 2.0.0
com.apple.iokit.IOSMBusFamily 1.1
com.apple.security.sandbox 278.11
com.apple.kext.AppleMatch 1.0.0d1
com.apple.security.TMSafetyNet 7
com.apple.driver.AppleKeyStore 2
com.apple.driver.DiskImages 371.1
com.apple.iokit.IOStorageFamily 1.9
com.apple.iokit.IOReportFamily 23
com.apple.driver.AppleFDEKeyStore 28.30
com.apple.driver.AppleACPIPlatform 2.0
com.apple.iokit.IOPCIFamily 2.9
com.apple.iokit.IOACPIFamily 1.4
com.apple.kec.pthread 1
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Unable to gather system configuration information.Model: Macmini6,1, BootROM MM61.0106.B03, 2 processors, Intel Core i5, 2.5 GHz, 16 GB, SMC 2.7f0
Graphics: Intel HD Graphics 4000, Intel HD Graphics 4000, Built-In
Memory Module: BANK 0/DIMM0, 8 GB, DDR3, 1600 MHz, 0x802C, 0x31364B544631473634485A2D314736443120
Memory Module: BANK 1/DIMM0, 8 GB, DDR3, 1600 MHz, 0x802C, 0x31364B544631473634485A2D314736443120
AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0x10E), Broadcom BCM43xx 1.0 (5.106.98.100.22)
Bluetooth: Version 4.2.4f1 13674, 3 services, 23 devices, 1 incoming serial ports
Network Service: Wi-Fi, AirPort, en1
Serial ATA Device: APPLE HDD HTS545050A7E362, 500.11 GB
USB Device: USB3.0 Hub
USB Device: USB3.0 Hub
USB Device: Backup+ Desk
USB Device: Hub
USB Device: Hub
USB Device: Diablo III Gaming Mouse
USB Device: Hub
USB Device: IR Receiver
USB Device: BRCM20702 Hub
USB Device: Bluetooth USB Host Controller
USB Device: USB2.0 Hub
USB Device: USB2.0 Hub
USB Device: Hub
USB Device: My Passport 070A
Thunderbolt Bus: Mac mini, Apple Inc., 23.4

Remove the Norton/Symantec product by following the instructions on either of these pages:
Uninstalling your Norton product for Mac
Removing Symantec programs for Macintosh
If you have a different version of the product, the procedure may be different. Back up all data before making any changes.

Mac Mini sound continually turning down

My mac mini sound is continually turning down. When I hit the sound up button, the sound goes up for a millisecond and then goes back down. It is really annoying because the sound up icon is in the middle of my screen. This problem has been occurring on and off for a week now.

Ok I found out how to fix it. I deleted my audio cache and it hasn't done it again.

My Macbook Pro started freezing all the time & going to sleep on its own for no reason

I've been having trouble for a few weeks with my computer freezing way too often for seemingly no reason - I'm using it exactly the same way I always have with no problems, and even actively trying to have less applications open (which seems to have no effect). I can't always load simple webpages without it freezing and giving me the color wheel and it's just MUCH slower in general. It is seriously making it difficult to use my computer for work or for fun...
It has also started going to sleep on its own - the screen will just go black (or sometimes BLUE) and the keyboard lights turn off, and the only way to get it to wake back up is to close the computer, wait, open it again and click or press a key. It doesn't respond to any keys/clicks until it has been closed and reopened.
It seems to overheat really easily lately as well - but it does not always overheat when it freezes.
SMC reset did not seem to have an effect. Activity Monitor doesn't show anything crazy, everything is pretty much 0% except Firefox around 7-12% as I'm typing this. 246 GB available on my hard drive so that doesn't seem to be the problem either. Right after restarting my computer it seems better but the problems quickly resurface...
I googled for help before posting this and someone had suggested running the command
syslog -k Sender kernel -k Message CReq 'Channel t|GPU D|I/O|find tok|n Cause: -' | tail | open -ef
in Terminal, which they said "Normally the command will produce no output, and the window will be empty." But mine gave this:
Tue Apr 15 21:04:24 My-MacBook-Pro kernel[0] <Debug>: disk0s2: I/O error.
Tue Apr 15 21:04:42 My-MacBook-Pro kernel[0] <Debug>: disk0s2: I/O error.
Tue Apr 15 21:35:04 My-MacBook-Pro kernel[0] <Debug>: disk0s2: I/O error.
Tue Apr 15 21:35:20 My-MacBook-Pro kernel[0] <Debug>: disk0s2: I/O error.
Wed Apr 16 10:56:46 My-MacBook-Pro kernel[0] <Debug>: disk0s2: I/O error.
Wed Apr 16 10:57:03 My-MacBook-Pro kernel[0] <Debug>: disk0s2: I/O error.
Wed Apr 16 12:11:17 My-MacBook-Pro kernel[0] <Debug>: disk0s2: I/O error.
Wed Apr 16 12:11:35 My-MacBook-Pro kernel[0] <Debug>: disk0s2: I/O error.
Wed Apr 16 12:11:52 My-MacBook-Pro kernel[0] <Debug>: disk0s2: I/O error.
Wed Apr 16 12:23:01 My-MacBook-Pro kernel[0] <Debug>: disk0s2: I/O error.
I don't know what that means or if that is useful info to help solve my problem? I just want to know what I can do to make my mac go back to normal!
I ran Etrecheck:
Hardware Information:
    MacBook Pro (15-inch, Early 2011)
    MacBook Pro - model: MacBookPro8,2
    1 2 GHz Intel Core i7 CPU: 4 cores
    4 GB RAM
Video Information:
    AMD Radeon HD 6490M - VRAM: 256 MB
    Intel HD Graphics 3000 - VRAM: 384 MB
System Software:
    Mac OS X 10.6.8 (10K549) - Uptime: 0 days 0:24:42
Disk Information:
    Hitachi HTS725050A9A362 disk0 : (465.76 GB)
        (null) (disk0s1) <not mounted>: 200 MB
        Macintosh HD (disk0s2) / [Startup]: 465.44 GB (229.26 GB free)
    MATSHITADVD-R   UJ-898
USB Information:
    Apple Inc. FaceTime HD Camera (Built-in)
    Apple Inc. BRCM2070 Hub
        Apple Inc. Bluetooth USB Host Controller
    Apple Inc. Apple Internal Keyboard / Trackpad
    Apple Computer, Inc. IR Receiver
FireWire Information:
Thunderbolt Information:
    Apple, Inc. MacBook Pro
Kernel Extensions:
    com.digidesign.iokit.DigiDal    (8.0.3f1)
    com.paceap.kext.pacesupport.snowleopard    (5.7.2)
Startup Items:
    DigidesignLoader: Path: /Library/StartupItems/DigidesignLoader
    M-AudioFastTrack: Path: /Library/StartupItems/M-AudioFastTrack
    PACESupport: Path: /Library/StartupItems/PACESupport
Problem System Launch Daemons:
    [System]    org.samba.winbindd.plist 3rd-Party support link
Launch Daemons:
    [System]    com.adobe.fpsaud.plist 3rd-Party support link
    [System]    com.google.keystone.daemon.plist 3rd-Party support link
    [System]    com.microsoft.office.licensing.helper.plist 3rd-Party support link
    [System]    org.eyebeam.SelfControl.plist 3rd-Party support link
    [System]    PACESupport.plist 3rd-Party support link
Launch Agents:
    [System]    com.google.keystone.agent.plist 3rd-Party support link
    [System]    com.hp.help.tocgenerator.plist 3rd-Party support link
    [System]    com.m-audio.mobilepremkii.helper.plist 3rd-Party support link
User Launch Agents:
    [not loaded]    com.apple.CSConfigDotMacCert-[...]@me.com-SharedServices.Agent.plist
    [not loaded]    com.facebook.videochat.[redacted].plist 3rd-Party support link
    [not loaded]    com.spotify.webhelper.plist 3rd-Party support link
User Login Items:
    Flux
    iTunesHelper
    RescueTime
Internet Plug-ins:
    o1dbrowserplugin: Version: 5.2.4.18058 3rd-Party support link
    nplastpass: Version: 2.5.5 3rd-Party support link
    Unity Web Player: Version: UnityPlayer version 3.5.2f2 - SDK 10.6 3rd-Party support link
    RealPlayer Plugin: Version: Unknown
    Silverlight: Version: 5.1.20913.0 - SDK 10.6 3rd-Party support link
    FlashPlayer-10.6: Version: 13.0.0.201 - SDK 10.6 3rd-Party support link
    QuickTime Plugin: Version: 7.6.6
    Flash Player: Version: 13.0.0.201 - SDK 10.6 3rd-Party support link
    googletalkbrowserplugin: Version: 5.2.4.18058 3rd-Party support link
    SharePointBrowserPlugin: Version: 14.4.1 - SDK 10.6 3rd-Party support link
    AdobePDFViewer: Version: 10.1.1 3rd-Party support link
    iPhotoPhotocast: Version: 7.0 - SDK 10.7
    JavaAppletPlugin: Version: 13.9.8 - SDK 10.6 Outdated! Update
iTunes Plug-ins:
    Quartz Composer Visualizer: Version: 1.2
3rd Party Preference Panes:
    Flash Player 3rd-Party support link
    Growl 3rd-Party support link
    M-AudioFastTrack 3rd-Party support link
    M-Audio MobilePre 3rd-Party support link
Old Applications:
    None
Time Machine:
    Time Machine information requires OS X 10.7 "Lion" or later.
Top Processes by CPU:
         5%    firefox
         3%    EtreCheck
         2%    WindowServer
         2%    hidd
         1%    mds
Top Processes by Memory:
    545 MB    firefox
    74 MB    mds
    57 MB    WindowServer
    41 MB    Mail
    41 MB    Finder
Virtual Memory Information:
    1.88 GB    Free RAM
    818 MB    Active RAM
    458 MB    Inactive RAM
    880 MB    Wired RAM
    190 MB    Page-ins
    0 B    Page-outs

Eric - I dont understand how I'd use caffeinate. I am not running any code or particular script. My system goes to sleep if surfing the web, or running Word or Excel, etc.
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InDesign CS5 (Mac OS 10.6) can not open its own file

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Bob and Peter
Thank your for helping us out. It was really necessary to ask a coworker to open the file and export it in InDesign markup language.
Three hours later than expected, but it's done!
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Jumpy Trackpad
http://support.apple.com/kb/TS1449

My mac mini keeps going to sleep

Ok my Mac mini is about 3 years old and well whenever I'm doing most anything It will make a noise as if running hard then turn itself on sleep and no Its not doing it due to inactivity cause after I turn it back on using the keyboard it puts itself to sleep within seconds again.
This problem is the worst while trying to watch any type of movie rather it be on DVD,Youtube,Apple Movie trailers, or OTHER.
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Hi Yamivash 0-
Greetings and welcome to the Apple boards.
It sounds like it is overheating. Have you cleaned the air vents out lately?
Luck-
-DaddyPaycheck

Mac mini sound distortion

Hi can anyone help??
Iv got one of the new Mac Mini computers and iv got in linked up to my tv via HDMI and from the tv to my amp using phono cables as iv got no space on my amp. when watching film i get disdorted sound . iv played about with the sound setting in the audio midi setup . at the mo its set up at 44100.00 hz 2ch 16bit integra.
any sergestions ?

Hello, no idea really, but have you tried other settings like 96Khz?

Mac Mini Sound Issue under OS X when Boot Camp is installed

I've noticed a strange issue on my Intel Mac Mini.
Fresh install of Mac OS X 10.4.6 or higher - sound volume is normal and stays at the previously set level after a power off, power on, or just a restart.
If I take the same fresh install and install Boot Camp (confirmed on version 1.2 and 1.3 both) - and I raise the volume and restart or shut down / power back on - the volume is automatically reset to 50% when I log back into Mac OS X.
The volume problem doesn't appear to affect Windows or Linux at all, only OS X itself.
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sorry for digging up an old thread, but what was the problem?

Strange mac mini sound issue with HDMI cable

I connected my mac mini to my Panasonic 44 inch HDTV with a DVI to HDMI adapter. I didin't get sound through the cable like i expected. Then I connected a 3mm to RCA jacks adapter to the analog HDMI port on the TV and still no sound. Strangely, when i switched resolutions from 1920 X 1080 to 1200 X 720 the sound started working through the audio ports. It works on every resolution except 1920 X 1080. Any ideas why this is so? Or how to fix it?

First off, the DVI standard makes no provision for carrying sound. That is why you didn't hear any sound when making a DVI-to-HDMI connection from your mini to your TV through the adapter. I am assuming there must be a setting on your TV that is snuffing the sound input from the mini rather than the mini not outputing sound at 1920x1080. This would be easy to prove. Just pull the audio minijack connector from the mini's sound out and I'm guessing you will hear sound coming from the mini's speaker.
Is it possible that, on your TV set, you have associated 1920x1080 with an expectation of HDMI input? Maybe the TV is expecting to find digital audio over the HDMI input and somehow that association is only with that one resolution. Then when you drop resolutions it is looking for sound over the analog port instead of over the HDMI port. I'm just guessing here, but it's something you can check.

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Hi
I am wanting to run a Mac Mini (new 20013 base model) as a music stremer, and as headless. I want to control it on an iPad using RealVNC or si ilar.
However, I have read a problem exists where the MM goes into slow mode and becomes sluggish / useless as it thinks it hasn't
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Facts would be nice, I don't have much to go on, a couple of reports of that problem, but 100s of reports of using the Mini headless & no mention of any "Slow" problem!???
Hmmm, I wonder if it's only Server and/or a Mouse???
https://discussions.apple.com/thread/4246224?start=0&tstart=0
I hope we can get somebody in here that isn't having the problem to see what might be different?

Mac mini sound

About two weeks ago I noticed that no sound is coming from my Mac Mini. When I plug in a set of headphones, the sound is fine and streaming to my Apple Tv; again fine. I have read the forums, I have done a 'clean install' of ML to no avail. Before i trapse down to my nearest Apple Store (35 miles!) anything else I could do?

UPDATE:
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Mac Mini Sound problem

Hi all,
i have a mac mini early 2009, the sound dont work and i run apple hardware test and show me following error 4mot/1/40000002 master-0
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The error points to an error with a fan? Is the Mac mini still under warranty? Bring it to an Apple Service point would be the best option.

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It depends on the sound input socket on the LCD. On the mini end, it's a standard stereo mini jack. If the LCD has the same, small, circular socket marked audio in, then a standard stereo mini jack to stereo mini jack cable will be what you need. On the other hand, if the LCD has two sockets marked audio in, one red and one white, then you need a stereo mini jack to twin RCA/phono cable.

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My mac mini does not have any sound when booting nor in applications mid 2007. Could someone help me...

If you go to System Preferences>Sound>Output what is listed?
Do have any external device conected to the speaker-out jack?
Did it work before?
Try resetting the SMC and NVRAM
Intel-based Macs: Resetting the System Management Controller (SMC)
About NVRAM and PRAM

Mac Mini sound goes to zero on its own.

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