Register FAQ / Rules Forum Spy Search Today's Posts Mark Forums Read
Go Back   MacRumors Forums > Apple Hardware > Desktops > iMac

Reply
 
Thread Tools Search this Thread Display Modes
Old Dec 11, 2009, 06:26 PM   #1
ucfgrad93
macrumors G5
 
ucfgrad93's Avatar
 
Join Date: Aug 2007
Location: Colorado
iMac Fans Running Constantly - How Can I Stop It?

Ok, so I just got my iMac back from having the logic board replaced. It booted up fine, but the fans are running constantly. They did not do this before the repair. Is there any way I can adjust this? My wonderfully silent iMac is now pretty loud.
__________________
If guns kill people, do pencils misspell words?
ucfgrad93 is offline   0 Reply With Quote
Old Dec 11, 2009, 06:57 PM   #2
Bennieboyİ
macrumors 65816
 
Bennieboyİ's Avatar
 
Join Date: Jan 2009
Location: england
Send a message via MSN to Bennieboyİ
have you got smc fan control installed?
__________________
Macrumors IRC: irc.krono.net room #macrumors download Colloquy or Adium
Search before you post: MRoogle
Bennieboyİ is offline   0 Reply With Quote
Old Dec 11, 2009, 09:06 PM   #3
i7QuadCoreMania
macrumors 6502
 
Join Date: Nov 2009
one of the sensors are no plugged in I suspect.

Go and install istat nano and look at the Fan speeds and Temperature.

if you are missing one of the temp sensors then it is either unplugged or loose.

Should have a CPU, GPU, Optical drive, Hard drive, and ambient temp readings. if you are missing any of those then they forgot to plug something back in.
__________________
2011 MBA 13" i7 4gb RAM 256gb Samsung SSD
2010 Mac Mini Server RAID 0 as HTPC
i7 iMac /16g 160gb X25-M G2 BluRay SuperDrive
MBA SuperDrive universal modded
i7QuadCoreMania is offline   0 Reply With Quote
Old Dec 11, 2009, 09:07 PM   #4
i7QuadCoreMania
macrumors 6502
 
Join Date: Nov 2009
btw, forgot to add, if the fan speeds are over 3000rpm it is running too high, normal speeds are around 1k.
__________________
2011 MBA 13" i7 4gb RAM 256gb Samsung SSD
2010 Mac Mini Server RAID 0 as HTPC
i7 iMac /16g 160gb X25-M G2 BluRay SuperDrive
MBA SuperDrive universal modded
i7QuadCoreMania is offline   0 Reply With Quote
Old Dec 11, 2009, 11:11 PM   #5
GugGog
macrumors newbie
 
Join Date: Dec 2009
I have this problem too, which started during Migration Assistant. The noise was impressive -- louder than an Xbox 360 -- and continuous. iStat showed the HD fan spinning at 3400rpm, so it's going back to the reseller on Monday, and swapped out the same day.

Add another problem to the imac I7s! Fortunately, everything else seems okay.

My fan speed starts off silent (and does this if you put the machine to Sleep and then wake it up), but gradually gets louder over the course of 30 minutes.
GugGog is offline   0 Reply With Quote

Reply
MacRumors Forums > Apple Hardware > Desktops > iMac

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Similar Threads
thread Thread Starter Forum Replies Last Post
Fans on Early 2008 iMac Running fast and loud (Reseting SMC did not work) Dr Kevorkian94 iMac 13 Jan 10, 2014 10:53 AM
Macbook Fans Running constantly??? Matthew619 Mac Basics and Help 0 Jul 16, 2013 03:28 AM
Fans constantly running, and run during "sleep" DrDomVonDoom MacBook Pro 2 Jun 17, 2013 08:49 PM
MBP fans constantly run at 6000rpm. Goftrey MacBook Pro 3 Mar 23, 2013 09:48 PM
8 month old 27" iMac running WAY too hot, fans not spinning up ksgant iMac 6 Nov 14, 2012 05:30 AM

Forum Jump

All times are GMT -5. The time now is 12:52 PM.

Mac Rumors | Mac | iPhone | iPhone Game Reviews | iPhone Apps

Mobile Version | Fixed | Fluid | Fluid HD
Copyright 2002-2013, MacRumors.com, LLC