IMac :: What Default Apple Fan Speeds Are?
May 7, 2010
I was having problems with overheating last night in Windows 7 in that a few apps started freezing and I noticed that the top of my iMac was scorchingly hot even when I wasn't doing anything. I downloaded MacFan and used it to up the minimum fan speeds, and it worked as I wanted it to. Upon rebooting into Mac OS X, however, I think the fan speed increase carried over and was excessive, because I can hear my fans going even when I'm not doing anything and the top of my case is barely even warm (whereas before it was somewhere between very hot and painful).
I opened up smcFanControl and it's reporting ODD/HDD/CPU speeds of 2000/2500/1500, but it also has those numbers as the listed minimums on the sliders, so I can't decrease them beyond that. I'm pretty sure I can get around that by hacking the preferences file, but that requires that I actually know what the default Apple fan speeds are. Can someone with an i7 iMac who hasn't messed with their fan speeds open up smcFanControl and tell me what the minimum speeds are?
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Apr 27, 2009
Specifically the hard drive fan runs at 1600rpm and the optical fan always runs at 1350 rpms.
Those fans run faster than my 2007 24" 2.4ghz iMac.
Somehow I figured with the cooler running ddr3, 9400M igpu and better cpu architecture that this new 2009 20" iMac would be dead silent because the fans would barely have to run. Or at least be less noisey.
But that's not the case.
Anyone have any fan speeds to report on new iMacs? Particularly the 20" model?
Download the iStat Pro widget and report your fan speeds today!
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Jul 26, 2009
I have a new mid-2009 iMac 24 inch 2.66GHz. I work in a quiet environment and most of the time the computer is idling along. iStat returns the following fan speeds:
CPU 1200
HDD 1600
ODD 800
Even when I drive the iMac a bit harder - 100% CPU for an hour and a half - the temps only rise as follows:
CPU 60 C
Northbridge 68 C
Power Supply 71 C
and the fan speeds do not increase.
I value silence, and it seems to be unnecessary for the fans to running at this speed when they are not needed most of the time - when the computer is not under any load. With the iMac everything is right in front of your face. I heard about iMac Fan Control and installed it, but there is no possibility to set lower-than-standard fan speeds, except for the HD which can be set to 1200 instead of 1600. However, the ODD minimum speed increases to 1000 from 800.
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Nov 26, 2010
I have the 27" inch quad core i7 imac I just got a few days ago. Some reason for certain things like d/ling the vlc players its taking a few minutes to d/l a 24 meg file. With this type of computer, it should take like 3 seconds to d/l a small file like that. I have a fast internet connection, don't understand why that's happening.
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Aug 16, 2009
i have verizon dsl and live out about as far as you can and still get dsl.
the problem im having has just been since i got my new imac. it will start downloading around 85-90 kb then just slows and slows consistently and gets around 10 kb. sometimes if i stop then resume the download it will start back up at the faster speed but then slows again. sometimes if i stop it, it cant resume for some reason.
is this my isp problem or is it something with my computer or settings?
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Feb 8, 2010
I just recently bought an imac computer and my two friends who know a lot about apple computers thought that the fans and temperature might be a little high. The cpu fan at idle runs at just under 1200 rpm's, the harddrive fan runs at 1100 rpm's and the optical drive fan runs at 1000 rpm's. The temperature itself 40-44C. The other imac that they know of is a year old, so we weren't sure if there were newer upgrades that might be making the difference between our speeds and temperature compared to that one.
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Jun 23, 2009
My iMac seems to be a lot more noisier (a low humming noise, maybe the fans), than it was when I purchased it in a couple of months ago. When I first got it, it was the quietness and boot time which I was impressed with more than anything. Now it's noisier and boot times have doubled. I have noticed that the fans for for HD and CPU constantly spin at 1200rpm or more, with no applications open and as soon as I switch on my iMac.
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Jun 2, 2012
First of all here's my setup: 30d/4u Charter internet coming in through my Linksys modem, from there to port 1 of my 2006 Intel Xserve running NAT and DHCP, out from port 2 of the Xserve into my AirPort Extreme running in Bridge Mode, and then out to my other devices.
My AirPort setup is as follows: Internet tab-DHCP, address set by Xserve; Wireless tab-Create a wireless network, WPA/WPA 2 Personal; Wireless Options...-5 GHz network name is not checked, Radio mode is set to 802.11a/n-802.11b/g/n (Automatic), both 2.4 and 5 GHz channels are set to Automatic; Network tab-Off (Bridge Mode).
I am transferring 100+ GB of data across the network to my Xserve, but it is only Xferring at 5.5 MB/s, or around 44 Mbps, which isn't even at wireless-g speeds. My iMac is the Mid 2010 27" BTO w/ 2.93 i7 and 8 GB of RAM. It is also wireless-n compatible.The Xserve is wired and they have had gigabit NICs since the G5s.
Things I've tried: In Wireless Options... I tried turning Radio Mode to 802.11a/n-802.11b/g and leaving 5 GHz network name unchecked, but the speeds were down in the 2 MB/s range. Again in Wireless Options... I checked the box for 5 GHz network name, and left Radio Mode in Auto, joined the 5 GHz network on my iMac, tried again, but again only 2 MB/s or less. In Wireless Options... again, I checked the 5 GHz network name box, and set Radio Mode to a/n-b/g, but ocne again, it ran at 2 MB/s or less. The AirPort Extreme is model A1354, which is obviously 802.11n compatible, and the iMac is also 802.11n compatible.
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Aug 8, 2010
just got my New iMac 27".
Just wondering why when I click on system prefs>security>firewall
it is turned off by default? Should I turn it on? If so why was it set on off when I turned on my imac for the first time?
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Apr 10, 2012
I reset my Apple keyboard (I use a keyboard and monitor at home connected to the macbookpro) and now when I try to change the volume justing F11 or F12, I get the desktop....or something else. How do you reset the defaults if the default keys aren't the default now? I mean, I looking at a key that shows a volume symbol on it, but that is not what happens. Sorry for typos, but the computer stalls for about 5 seconds every 30....
PS And the keyboard is about a year old and the "s" key has totally vanished. :-)
Info:
MacBook Pro, Mac OS X (10.6.8)
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Feb 24, 2012
I have made about 10 sig files in apple mail. I'm running 10.5.8. How do I change the default sig file so that particular one is used till I want to change it?
Info:
Mac Pro, Mac OS X (10.5.8)
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Dec 15, 2008
I am wondering how, if possible, to set the default "reply-to" address on Apple Mail. I know I can manually add it to each message I compose, but that's rather cumbersome. I'd like to be able to configure Mail so every message I send out will automatically use the same "reply-to" mail address. Is it possible?
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Mar 25, 2012
I have lost the Apple website as the default lwhen I open Safari - is a jumble of weird numbers/letters. How do I reset to Apple?
Info:
MacBook Pro (13-inch Mid 2010)
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Jan 26, 2010
When I start my iMac, a few programs start along with the computer. I don't want any programs starting by default. I have reviewed the Preferences of these programs, and see nothing to uncheck regarding auto startup. And I don't see anything related to this in System Preferences. How I can start the computer without programs starting with it?
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Dec 4, 2014
I set the screensaver to a folder on main drive. All files are jpg. it works for a while then after a few times - exit the screensaver then back to the screensaver - it will go to the default settings.
Info:
iMac, OS X Yosemite (10.10)
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May 18, 2009
I am wondering if there is a way to have my iMac boot up in OS/X by default and if I want to use windows then use the hold down option method. So when I also come out of windows that it will go to OS/X without having to hold down the option key while I boot. Is this possible? If so how do I configure it?
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Sep 8, 2014
When I added a network drive (Ethernet) to my system, my Mac asks for a 'registered user' password. Since I haven't set up a password how do I get access? I have the option of logging in as a guest but does this limit what I can do?
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Dec 1, 2014
I am trying to set Apple Mail as my default mail application, but invariably, when I try to send an email from another program, it opens Outlook instead.
How can I make Mail the default mail application for my entire system?
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Nov 9, 2010
I bought a 27" iMac i7 with 8gb of ram. fully loaded and after partitioning my drive started getting pinwheel problems with the default 5400 rpm harddrive. I did a fresh install and didnt have the problems anymore. Again I put bootcamp on and there are still pinwheel issues. I went to apple and they replaced the harddrive a saying that partitions take a pie like slice out of your drive and it shouldnt effect speed. They replaced with with a 7200 rpm harddrive. All was well until I partitioned the drive again. The weirdest part is that windows runs at 10000 mph where 10.6 pinwheels no matter what I do. I am fairly tech savvy and feel like this is maybe a defragmenting issue. I believe osx defragments files under 20mb. could this be it? It is driving me bonkers. I use both windows and osx and need to boot completely into the OSs as I am using primarily post programs like after effects.
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Jan 19, 2010
I was wondering what the default Audio MIDI Setup values are supposed to be on for the internal speakers on the new 21.5" iMac. This is what I currently have at the moment.
I was hoping someone could do a quick check of their own settings and let me know. Is there any reason to or difference to have the Hz at 44,100 or Bits to 24?
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Feb 1, 2012
I would like to be able to set the default search engine for Safari as one of the better kid specific ones for one account on my imac.I don't think its an option in the preferences (perhaps it should be Apple?)
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Sep 11, 2014
I work all day on my MAC 27" and am constantly opening files....
But how do I customise the 'open file' window. Every time I open a file I have to increase the size of the window, change the view and then look for my files.... is there a way to set the default view to what I would wish it to be?
I have enclosed a screen shot of the default open file window.... I would like a bigger window...... and be able to see 'list view' as opposed to icons each time.
Info:
iMAC 27, iPhone OS 3.1.2
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Jun 22, 2014
how can I display the folder location at the top of an open mail message as a default?
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Dec 29, 2009
I sent an email to Steve Jobs about my yellow tint 21.5 iMac issues (three exchanges, all affected, resulting in a refund). I got a call from Dena at Executive Care within 24 hours.
She said they are aware of the problem and do not know how widespread it is. According to Dena, the issue is not resolved and that ordering a new iMac will not result in a fixed display.
She said the engineers are working on it now and they are not sure if it's hardware (most likely) or software related. Further Apple stores cannot do repairs because they haven't determined what the issue is.
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Jun 24, 2007
I've read some reviews of eSata external drives and it seems to be better than FW800. What are the odds Apple is gonna include an eSata port on its next-gen iMac?
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Aug 16, 2009
i'm new here and was just wondering if i could use 2 24" apple led displays with the iMac monitor?
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Nov 13, 2010
I have 2 WD Caviar Black drives that are installed in my Mac Pro. Both show the exact same part number in Disk Utility, both are less than half full, both verify fine with Disk Utility. However one shows 125-130 MB/s RW with AJA and the other only delivers 90 MB/s. What gives? Just a sub-standard drive? THey are in adjacent bays in the MP, used as is - nothing changed. They are OEM drives thru Amazon from a few months ago. Both were erased and formatted prior to putting them in the MP a few weeks ago.
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Dec 30, 2006
The 64 bit 33MHZ PCI slots on a G4 are running at 133MBps correct? Also I want to know if all 4 of them are running fully inpendent from each other? So if I have a RAID card in there I can get the full 133MBps and will not be robbed of speed if I have a neighboring Firewire 800 or SATA RAID next to it.
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Feb 4, 2010
Using both smcFanControl and istat, I cannot get a reading on my fan speeds. I can hear my exhaust fan spinning, but these programs tell me it is always at 000 rpm. Also, I don't think the fan control is working, as I don't hear an increase in fan speed when I make adjustments.
Does anyone know how I can get these apps to recognize my exhaust fan?
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Jun 5, 2010
Im here on a mission to find out why my macbook running snow leopard will only give me bang on 20mb download when every other windows machine in my house is giving me 50mb. I have tried to do a bit of google searching but don't seem to be getting anywhere. I assume it must be the macbook and not any router settings etc?
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