Loud Popping Noise when wake from sleep

On my new iMac CD 20" there is a load popping noise that comes from the speakers when I wake it up from sleep. Also, the hard-drive or the super-drive clicks a few when waken from sleep. Yesterday there was a static noise coming from the speakers while I was using the machine on the web, it was load enough to be annoying, I restarted it and the sound went any. I am wondering if any others have noticed this problem and should I take it back for a new one.
My wife has even said that the sounds don't seem right.
Any feedback would be great!
Thanks.
20" Intel iMac and 12 P-book- 867 MHz Mac OS X (10.4.4)

I conducted some tests on my iMac, and the problem, as it were, is related to having external speakers connected to my iMac. When I unplug my external speakers (JBL Encounter), I do not hear the pop upon waking my iMac from sleep. When I plug the speakers in again, the pop returns. I do not hear the pop when I mute the speakers before putting the iMac to sleep, either.
To rule out other devices, I unplugged all external devices and then reconnected them one at a time. Only the speakers triggered the pop.
I don't think this is a defect necessarily, even though I never heard the popping sound when waking my iMac G5 from sleep (with the same set of speakers). I think it may, as I suggest above, have something to do with the change in processors.
I may call Apple just the same to see what its tech. support people have to say on the matter.
Do those others of you experiencing the popping sound also have external speakers?

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aswSnx.sys avast! Virtualization Driver from ALWIL Software (AVAST). I would remove it and use MSE instead
Avast can be a contributing cause of BSOD'S .
Please remove and replace with Microsoft Security Essentials AT LEAST TO TEST
http://files.avast.com/files/eng/aswclear5.exe
http://www.microsoft.com/security_essentials/
Dont forget to turn verifier off by typing verifier /reset
M
Windows 7 Kernel Version 7601 (Service Pack 1) MP (4 procs) Free x64
Product: WinNt, suite: TerminalServer SingleUserTS
Built by: 7601.18247.amd64fre.win7sp1_gdr.130828-1532
Machine Name:
Kernel base = 0xfffff800`03203000 PsLoadedModuleList = 0xfffff800`034466d0
Debug session time: Wed Feb 5 17:38:41.395 2014 (UTC - 5:00)
System Uptime: 0 days 4:40:23.207
BugCheck 1A, {31, fffffa800ad4f340, fffff880084df000, fffff8a008d543da}
*** WARNING: Unable to verify timestamp for aswSnx.SYS
*** ERROR: Module load completed but symbols could not be loaded for aswSnx.SYS
Probably caused by : aswSnx.SYS ( aswSnx+278c8 )
MEMORY_MANAGEMENT (1a)
# Any other values for parameter 1 must be individually examined.
Arguments:
Arg1: 0000000000000031, The subtype of the bugcheck.
Arg2: fffffa800ad4f340
Arg3: fffff880084df000
Arg4: fffff8a008d543da
Debugging Details:
BUGCHECK_STR: 0x1a_31
CUSTOMER_CRASH_COUNT: 1
DEFAULT_BUCKET_ID: VERIFIER_ENABLED_VISTA_MINIDUMP
PROCESS_NAME: firefox.exe
CURRENT_IRQL: 0
ANALYSIS_VERSION: 6.3.9600.16384 (debuggers(dbg).130821-1623) amd64fre
LAST_CONTROL_TRANSFER: from fffff800034d7515 to fffff80003278bc0
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fffff880`09c98488 fffff800`034d7515 : 00000000`0000001a 00000000`00000031 fffffa80`0ad4f340 fffff880`084df000 : nt!KeBugCheckEx
fffff880`09c98490 fffff800`0354f287 : fffff800`00000000 00000000`00000000 00000000`00000884 fffff8a0`08d15000 : nt! ?? ::NNGAKEGL::`string'+0x71b1
fffff880`09c984f0 fffff800`03259a92 : fffffa80`04a44ad0 00000000`00883400 fffffa80`04d9e9b0 fffff8a0`041c0468 : nt!MiRelocateImagePfn+0xf7
fffff880`09c98550 fffff800`035533b1 : fffffa80`0af86780 fffff6fc`400428d0 fffff8a0`00000002 00000000`00000000 : nt!MiValidateImagePages+0x362
fffff880`09c98600 fffff800`035534f0 : ffffffff`ffffffff 00000000`00000001 fffff8a0`08d15000 fffff800`00000170 : nt!MiSwitchBaseAddress+0x61
fffff880`09c98630 fffff800`03575f7f : 00000000`00000004 00000000`00000080 00000000`01000000 00000000`01000000 : nt!MiRelocateImageAgain+0x100
fffff880`09c98680 fffff800`03552c2e : fffff880`09c988d0 00000000`00000000 00000000`00000000 fffff880`09c988c8 : nt!MmCreateSection+0x2df
fffff880`09c98880 fffff880`030908c8 : 00000000`00000000 fffff880`09c98a08 00000000`00000000 00000000`00000008 : nt!NtCreateSection+0x171
fffff880`09c98900 00000000`00000000 : fffff880`09c98a08 00000000`00000000 00000000`00000008 fffff800`00000010 : aswSnx+0x278c8
STACK_COMMAND: kb
FOLLOWUP_IP:
aswSnx+278c8
fffff880`030908c8 ?? ???
SYMBOL_STACK_INDEX: 8
SYMBOL_NAME: aswSnx+278c8
FOLLOWUP_NAME: MachineOwner
MODULE_NAME: aswSnx
IMAGE_NAME: aswSnx.SYS
DEBUG_FLR_IMAGE_TIMESTAMP: 51cc5c35
FAILURE_BUCKET_ID: X64_0x1a_31_VRF_aswSnx+278c8
BUCKET_ID: X64_0x1a_31_VRF_aswSnx+278c8
ANALYSIS_SOURCE: KM
FAILURE_ID_HASH_STRING: km:x64_0x1a_31_vrf_aswsnx+278c8
FAILURE_ID_HASH: {f43a31e8-a1ef-8e81-3cc5-7c9f76e5ce50}
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I have a G4 iBook 1Ghz, 512MB Ram, 60 g HD, running 10.3.9. When waking from sleep, it has a loud buzzing noise that comes from the speakers. I know it is the speakers as you can silence it with the volume. If you restart, it is silent. It is silent from startup. It only does this on waking from sleep. At times it won't wake up at all, only responding to a forced restart. I've zapped the PRAM, reset the PMU, and all of the sound preferences. Anybody got any other suggestions?
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I had the same problem with an Al 15" 1.25hz powerbook. My problem seemed to be related to waking after I had put it to sleep by closing the lid. Among many other experiments the advice below seems to have solved the problem. I now put the book to sleep with the power button and 's' and it no longer opens when you lift the lid, but that is a very small inconvenience.
Re: Open PowerBook without Wakening up from Sleep?
Posted: Nov 20, 2005 4:44 AM in response to: Mightdancer
Reply Email
Hi Mightdancer --
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Re: Open PowerBook without Wakening up from Sleep?
Posted: Nov 20, 2005 4:44 AM in response to: Mightdancer
Reply Email
Hi Mightdancer --
Yes, there is a way to turn off the function whereby the PB wakes when the lid is opened. I learned this just a few weeks back, reading a post by Ned Snowing of this fora. I've found Ned to be one of the more reliable and authoritative posters on here, and here's what he wrote, in pertinent part, on the subject of how to stop your PB from waking up when automatically when the lid opens:
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To do this open Terminal and type :
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To set the "lidwake" mode to not wake type the following :
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… and subsequently type in your administrator password when asked. By typing "pmset -g" again you should see that the "lidwake" entry has been modified and your PowerBook will no longer wake when you open the lid.
Obviously if you want to restart your PowerBook's behaviour to wake when you open the lid type into Terminal:
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Loud Popping Noise when wake from sleep

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