How much noise is normal?
I noticed when the room is totally silent, i can hear my hard drive doin stuff. How much noise is normal? Can you hear your hard drive at all?
Unless you're accessing a lot of information on your hard drive, a constantly noisy hard drive can sometimes be an indication that you need more RAM.
When a computer's RAM is fully used, the computer must then resort to Virtual memory which is paged from the hard drive constantly, which thus can be noisy sometimes.
If you notice that your iBook is making this noise consistently at a certain time, it is likely that OS X is performing its self-maintenence daemons, which means updating databases on your hard drive, etc. and this can be noisy sometimes as well.
As far as how loud the drive can be can vary, but I can definitely hear my Rev. A iBook G4 in a silent room. So I wouldn't worry as far as that's concerned.
I hope this helps.
Brian
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How much noise should the hard drive make on a MBP early 2011?
Had since May/June last year i5 13" and only since I applied all updates few weeks ago it seems to be louder than it was before?
It sounds like a fan but isn't... obviously. Right hand side of track pad, and covering it, in fact just touching it dampens it to barely audible. Is that normal or has something gone a bit weird? A constant fan noise, which isn't the fan is now there permanently.How much noise should the hard drive make on a MBP early 2011?
None.
The machine should only make noise if the Superdrive is being used or the CPU's heavily used, going by my Early 2011 17".
It sounds like a fan but isn't... obviously. Right hand side of track pad, and covering it, in fact just touching it dampens it to barely audible. Is that normal or has something gone a bit weird? A constant fan noise, which isn't the fan is now there permanently.
It's possible it wasn't installed correctly and/or the case is slightly off so it's resonating the hard drive vibrations.
Make sure you have a internet connection (don't move) and reboot the machine holding the d key down like forever and Hardware Test will run.
Backup your data off the machine, if the hard drive dies under 1 year or three years with Applecare, then go get a new one. else you can replace it yourself with a better one and not void your warranty if you don't break anything doing so. Add more RAM while your at it.
http://eshop.macsales.com/installvideos/
As you know Mac's are made by hand by young Chinese women working 12 hour shifts performing the same function every 7 seconds for only $1.20 a hour. They live 7 to a box room and have to pay 70¢ a meal.
All in all I would say they are very tired, and it's possilbe a few defects made it to your machine. -
My iphone5's camera is not working.The shutter freezes each time.How much time it normally takes to fix it.(i have an appointment this week). and if they can't will they give me a new iphone5 ?
Yes part of Apple Store
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but in a "brown box" so no bits and pieces just unit for unit exchange
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Specs. pasted in below.
I'm not sure about this. The noise level from my iMac is just above what I guess is OK? But how can I know. Normally I'm sitting quite and working and the loud humming can't pass my attention.
Some have said that their iMac is almost totally silent and maybe I'm comparing to this. Is a humming OK? I called Mac support in my country, and they couldn't say anything in general about noise. Asked me to reset PROM and so on. I already tried this so I kind of knew it wouldn't help. My biggest problem is that I have nothing to compare with.
Some numbers (Normal working conditions. Idle mode)
CPU fan: 799 rpm
Hard drive fan: 1399
Optical drive fan: 799
Some have said that this iMac should be very quiet but I guess thats a matter of definition. Does some of you have a similar Mac? How much does it say?
Model Name: iMac
Model Identifier: iMac5,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2.16 GHz
Number Of Processors: 1
Total Number Of Cores: 2
L2 Cache: 4 MB
Memory: 2 GB
Bus Speed: 667 MHz
Boot ROM Version: IM51.0090.B09
SMC Version: 1.9f4
----------------------------------------------------Yu have an intel Mac and have posted i the G5 iMac area. However, I have an intel iMac and it is perfectly silent, much, much quieter than my G5. I have a friend with the same model, and she has a slight hum coming from her machine, so I suppose a very modest sound is ok. You are probably within normal parameters, but try calling Apple and when you talk to the tech, hold the phone next to your machine and test if he can hear it. When I did that with my old G5, Apple replaced it because they realized the fans were abnormally loud.
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How much noise does it make your intel mac mini?
In these last days I got my first intel Mac Mini with 512MB of RAM, when powered on, I can hear three different "sounds" coming from it:
1. the fan rotation (a continuos rrrRRRrrrrrrr);
2. the air flow from the back;
3. the hard disk.
The major noise source is the fan rotation, not the air but the fan itself. I didn't hear any other computer or notebook with the fan making so much noise.
I have here a intel duo notebook too, but I cannot hear the fan when it is working.
Since the situation has become worst after 2 GB upgrade(fan is running fast for more time), I am asking mysel if this is normal or if my fan could be faulty.
So I would like to ask all intel mac mini owners here, if they have this noticeable noise source coming from the fan itself.
Here, when the fan goes faster, the noise coming from it is growing too and is bigger than any other sound, bigger then air flow.
It is quite probably that without this annoying "rrrrrrr" sound the mac mini will feel quite silent.
Since some users from other forums are claiming that their mini is very very silent and they do not notice any annoying noise coming from it, please post your feeling with your mac about this.
I am talking about a sound that is quite acute and louder about twice of air flow and three times more then hdd noise.
Thanks a lot for any report about.It sounds like something is amiss with your mini either the fan or a heat sensor. I bought my duo on July 29th & it's nearly silent. I was surprised how much louder my 12 Powerbook G4 was as I was shifting over data preparing to ship it to the new owner. The only time my mini gets loud is when the super drive kicks in high gear when burning discs. Then it sounds like a fighter jet, but that's normal so I hear . I agree with the majority, you should get it looked at since it should be very quite unless you're using the optical drive.
1.66GHz Intel Mini Duo, 1GB RAM, 100GB HD Mac OS X (10.4.7) -
I need help I need to get a replacement stylus for my galaxy note 4 where can i buy it and how much do they cost?
Kristinkeani,
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Follow us on twitter @VZWSupport -
How much noise should my G4 fan make?
I recently purchased a second hand G4 iMac flat-panel (for my kids to use so they'd leave my Intel iMac alone!). In contrast to the Intel iMac, which is virtually silent, the G4 cooling fan makes noticeable noise, which increases in volume over time - the longer the system is running the louder the fan gets, presumably because it's working harder to cool the system. I've installed Temperature Monitor, and note that the internal temperature gets as high as 104 F. Is the fan noise and temperature level normal for this model of iMac? It's not wind-tunnel loud, just noticeable. I've worked on other G4s that didn't really have a noticeable fan noise. Thanks for any help/advice.
Hi Budzilla,
The fan on my G4 iMac has also got louder and louder. I heeded AxL's advice that it was probably caused by a build up of dust and today decided to open it up for a thorough clean.
It wasn't too difficult, if you're reasonably competent and take things slowly and carefully. I won't post a full explanation here (I'm sure there are plenty of detailed descriptions elsewhere) but briefly, I removed the baseplate, unscrewed the main base from the dome and vacuumed out the logic board area. Then removed the drive to access the fan and gave that a good clean too. There was a lot of dust!
You'll be pleased to hear that once reassembled, the fan was virtually silent and is now only just audible after an hour or so of activity. In fact, my external firewire is noiser!
In conclusion, well worth the 30 minutes it took and if you don't fancy the DIY approach, a good repair shop should be able to carry out the same procedure while you wait.
Hope this helps,
Graham. -
How much noise should a late 2011 MacBook Pro 13" make?
Hello support community,
I am writing for your help concerning the noise level of my MacBook Pro 13". It is the entry level Mac, with the i5. My fan's are idling at 2000 rpm which I have been told is normal but I can hear them? When compared to my girlfriend's late 2010 MacBook, I can hear my fans, but I can't hear hers? Could anyone with the same model let me know if this is normal or I should visit an Apple Store.
RegardsHi cjftw,
Did you solve your problem yet ?
I was wondering if the noise wasn't coming from the hard drive (when you put you ear on the right part near the track pad you can clearly hear this "fan" noise which actually comes form the hard drive) The actual fan in MBP is under the keyboard and located around the key "7" "8" "F7" "F8".
I seem to have the same issue as yours. My MBP is a late 2011 and my hard drive is a stock 750GB Toshiba. -
How much noise can be tolerated on the output of the DAQpad -6020E?
What is the noise level (frequency range/ volt amplitude) that, when added to the digital communication of the USB output of the DAQ-6020E that will affect its operation?
Hello,
There is no way to directly inject noise into the USB transfer lines unless you opened up the board and wired something to the USB system.
Other than that, USB has a standard hardware interface. If you have motors or other devices that produce strong magnetic fields, they might induce current that could corrupt USB data transfers. Barring that and other environmental noise, you can just depend on the USB standards.
If this isn't what you are asking about, please write back with exactly what you are doing that can inject noise into the USB data transfer.
Thank you,
John N
Applications Engineer
National Instruments -
How much noise expected in analog output?
I'm using a PCI-MIO-16E-4 with LabView to generate buffered analog output, and at the BNC-2090 output (DAC0/1OUT) I'm finding ~180 Hz hum of about 20 mV peak-to-peak. It doesn't seem to matter whether I'm writing a waveform or not; the noise magnitude is always about the same.
Is there something I can do to eliminate or reduce this, or is it typical so I'm stuck with it? I futzed with the BMC-2090 shield ground jumper (W1) but none of the three documented settings made any difference.
Any suggestions would be greatly appreciated.
thanks,
KevinNo particular noise is "typical." No noise at all is atypical. 20mV is low enough that it could be radiated noise for nearby equipment. I doubt you card would have that noise in the lab situation where they test for noise. Which essentially means something about you estup is responsible for the noise.
Since the frequency is a multiple of 60Hz it is probably environmental noise, radiated ot picked up off of the ground. Really and truly, 20mV is not a lot. I have acquisitions where I must be very careful in grounding ALL the associated equipment or I see huge blurts of noise from a motor drive - on the order of 3 Volts until I drove an eight foot gound rod through the floor to get an isolated safety ground for my DAQ PC and scope. I still see the noise, but it is now lower than 0.8V so I don't get false triggering of TTL circuitry from it. This is AI not AO like you are discussing.
If you check the specification of your card there is a table on "System noise." I am not saavy enough to understand it, but I see that the noise is dependant on the output range. I suspect that the range is not a user selectable item, but in theory if you see more noise than the spec sheet says, then it is part of your setup not the card.
Here is part you really don't want to hear: Solving a noise problem by text messaging is like solving a mental illness over the phone, maybe worse. I can tell you all sorts of practical, common sense things that are not specifically helpful. I can tell you from personal experience that you really need to follow all the good practices you can, if you really want to have as high a SN ratio as possible.
Can you set up a single point ground? Can you eliminate all ground loops (shielding only grounded on one end.) I had a stray strand of shielding that brushed against a case that made terrible noise once.
There is a good book called ,"Grounding and Shielding Techniques," by Ralph Morrison from Wiley Inter-Science. There are papers on this in in the tech resources of ni.com. In particular the paper on "Field wiring" is good. Keithley has a good book they will send you for free on low level measurements that is very informative. You have to call them on the phone to get it. -
hi,
I 've bought megaworks thx550 about a week ago. Quite dissappointed with the constant hissing sound that comes from the speakers. I can easly hear the sound about a meter distance.
By the way, hissing is unrelated to the sound card. It comes even if i mute the sound form the remote.
My question is how much noise (hissing) is normal for megaworks? I need to know this because i am in desperate stuation. Where i li've, in Turkey, creative's support next to nothing. I am trying return my set, but they say the noise is normal.the hissing is actually a normal thing...
it even happens with the most expensi've speakers...
even with the most expensi've stereo and speakers, you will still here a hissing noise.
you should of heard the hissing noise i had before my Creative Megaworks THX 250D Speakers died. -
How much CPU should the Agent (in general) be using on an Exchange 2010 Server
Hello
Can someone please help me with the following question.
I was asked by the Exchange admin if the HealthService.exe process should be using around 10% of the CPU on a 6 core system.
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However does anyone else have an Exchange 2010 environment (I am using SCOM 2007 R2 CU6) and if so how much CPU is it using over a few minutes?
also, if there a canned report I can run which shows how much CPU the agent is using over time.
Thanks in advance
AAnotherUser__
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Jonathan Almquist | SCOMskills, LLC (http://scomskills.com) -
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jac_95 | BT.com Help Site | BT Service Status
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