New To Mac-Forums?

Welcome to our community! Join the discussion today by registering your FREE account. If you have any problems with the registration process, please contact us!

Get your questions answered by community gurus • Advice and insight from world-class Apple enthusiasts • Exclusive access to members-only contests, giveaways and deals

Join today!

 
Start a Discussion
 

Mac-Forums Brief

Subscribe to Mac-Forums Brief to receive special offers from Mac-Forums partners and sponsors

Join the conversation RSS
Apple Desktops Discussion of Apple's desktop machines including Mac Pro, iMac, Power Mac, and mini

Just did it!


Post Reply New Thread Subscribe

 
Thread Tools
robpopper

 
Member Since: Nov 02, 2011
Posts: 18
robpopper is on a distinguished road

robpopper is online now
After 30+ years with PCs, I was given a non-working iMac. Decided the hd was at fault and replaced it following the instruction online. It's now up and running. Hooray! I've noticed that my iMac, (early 2009 24") runs really hot. Checking the sensors I find that the power supply is running at 176 degrees F. Logic board at 126F and the Northbridge chip and heat sink are at 165 & 156F. Just wondering whether this is considered normal. Any thoughts on the subject will be appreciated. Thanks for looking.
QUOTE Thanks
pigoo3

 
pigoo3's Avatar
 
Member Since: May 20, 2008
Location: U.S.
Posts: 25,746
pigoo3 has a reputation beyond reputepigoo3 has a reputation beyond reputepigoo3 has a reputation beyond reputepigoo3 has a reputation beyond reputepigoo3 has a reputation beyond reputepigoo3 has a reputation beyond reputepigoo3 has a reputation beyond reputepigoo3 has a reputation beyond reputepigoo3 has a reputation beyond reputepigoo3 has a reputation beyond reputepigoo3 has a reputation beyond repute
Mac Specs: 13" MB 2.4ghz, 2gig ram, OS 10.7.5

pigoo3 is offline
To me…those temps would be ok if you were using a Apple laptop…but they do seem a bit high on an iMac. Of course if you are gaming, watching a lot of internet video, or some video rendering…this could at least partially explain higher temps.

But if you are not doing anything special (just e-mail, internet webpage browsing)…then these temps seem high for an iMac.

I think that I would verify that all of the fans are operational…and give the inside a good cleaning (compressed air).

- Nick

p.s. The logic board temp is probably ok…it's the other temps that seem high.

- Computer slow, too many "beachballs", read this: Beachballs
- Computer seems slower than it used to? Read this for some speedup tips: Speedup
- Almost full hard drive? Some solutions. Out of Space
- Apple Battery Info. Battery
QUOTE Thanks
TattooedMac

 
TattooedMac's Avatar
 
Member Since: May 19, 2009
Location: Waiting for a mate . . .
Posts: 7,723
TattooedMac has a brilliant futureTattooedMac has a brilliant futureTattooedMac has a brilliant futureTattooedMac has a brilliant futureTattooedMac has a brilliant futureTattooedMac has a brilliant futureTattooedMac has a brilliant futureTattooedMac has a brilliant futureTattooedMac has a brilliant futureTattooedMac has a brilliant futureTattooedMac has a brilliant future
Mac Specs: 21" iMac 2.9Ghz 10.9.4 13"MBP 2.9Ghz i7 Yosemite 10.10 ~ iPhone5 iOS 8 ~ iPad Mini iOS 8 ~ ATV3 6.1

TattooedMac is offline
Have a bit of a read through of this thread (The Official "My MacBook/Air/Pro is overheating, what do I do?" Guide.). Even though it pertains mainly to Apple Notebooks, there is still a lot of good information in there for everyone.

CogFrog Studio's ~ Photography, Apps and Web Development
Dont forget to use the Reputation System if someone has helped you out !!!
Arguing with a zealot is only slightly easier than tunneling through a mountain with your forehead!!!!!
QUOTE Thanks
chscag

 
chscag's Avatar
 
Member Since: Jan 23, 2008
Location: Fort Worth, Texas
Posts: 38,465
chscag has a reputation beyond reputechscag has a reputation beyond reputechscag has a reputation beyond reputechscag has a reputation beyond reputechscag has a reputation beyond reputechscag has a reputation beyond reputechscag has a reputation beyond reputechscag has a reputation beyond reputechscag has a reputation beyond reputechscag has a reputation beyond reputechscag has a reputation beyond repute
Mac Specs: 27" iMac i5, 3.2 GHz, iPad 3, iPhone 5c, 3 iPods, OS X Mavericks

chscag is offline
Quote:
Originally Posted by robpopper View Post
After 30+ years with PCs, I was given a non-working iMac. Decided the hd was at fault and replaced it following the instruction online. It's now up and running. Hooray! I've noticed that my iMac, (early 2009 24") runs really hot. Checking the sensors I find that the power supply is running at 176 degrees F. Logic board at 126F and the Northbridge chip and heat sink are at 165 & 156F. Just wondering whether this is considered normal. Any thoughts on the subject will be appreciated. Thanks for looking.
Those temps do seem a bit high for an iMac. Your iMac should have three fans: CPU, Hard Drive, and Optical Drive. Make sure all three fans are running and that they ramp up (higher rpm) when the temps rise.

Clean the intake vents at the bottom of the display and also the exhaust vents at the top - making sure they're not plugged with dust, dirt, animal hair, etc.
QUOTE Thanks
robpopper

 
Member Since: Nov 02, 2011
Posts: 18
robpopper is on a distinguished road

robpopper is online now
Thanks all for the speedy replies. Having just replaced the hd, I'm not all that anxious to go inside again.But will do so if expert opinion thinks it's necessary. (Although I don't want to see caps explode or worse.) Would you consider the temps listed as "dangerously high". Just normal internet browsing, not gaming or retouching images when temp were shown.
QUOTE Thanks
pm-r

 
Member Since: Oct 16, 2010
Location: Brentwood Bay, BC, Canada
Posts: 302
pm-r will become famous soon enough

pm-r is offline
Congratulations on your "switch" and your iMac restoration fix.

Those temps are within max limits but are a bit on the high side for my liking, especially if there's no heavy use.

I found I needed to use an appropriate "fan control" for those and earlier aluminum iMacs (the white plastic caseiMacs were even worse) and I gather that all sensors were reattached correctly.

Maybe check out:
Diagnosing 2009 & 2010 iMac Fan Speed Issues After Upgrading The Main Hard Drive | Other World Computing Blog
QUOTE Thanks
harryb2448

 
harryb2448's Avatar
 
Member Since: Nov 28, 2007
Location: Nambucca Heads Australia
Posts: 16,888
harryb2448 has a reputation beyond reputeharryb2448 has a reputation beyond reputeharryb2448 has a reputation beyond reputeharryb2448 has a reputation beyond reputeharryb2448 has a reputation beyond reputeharryb2448 has a reputation beyond reputeharryb2448 has a reputation beyond reputeharryb2448 has a reputation beyond reputeharryb2448 has a reputation beyond reputeharryb2448 has a reputation beyond reputeharryb2448 has a reputation beyond repute
Mac Specs: iMac i5 2.7GHz OS X.9.4

harryb2448 is offline
100% sure about the model? Both the early and late 2009 model ahd 2.66GHz but on some late 2009 models, Apple introduced a hard drive with special heat sensors which can cause problems as set out in the above link. Also check out step 13 on this link on these heat sensors.


https://www.ifixit.com/Guide/iMac+In...ent/9028#s4929

Hang on to those original install discs like grim death! Using OS X.7 or later make a bootable USB thumb drive before running Installer!
QUOTE Thanks
robpopper

 
Member Since: Nov 02, 2011
Posts: 18
robpopper is on a distinguished road

robpopper is online now
Many thanks for the information and the terrific support. I did replace the hd with a Toshiba 2T drive and I replaced the sensor correctly. Now going to check the link above and will post back shortly. Thx all.
QUOTE Thanks
dtravis7

 
dtravis7's Avatar
 
Member Since: Jan 04, 2005
Location: Modesto, Ca.
Posts: 27,482
dtravis7 has a reputation beyond reputedtravis7 has a reputation beyond reputedtravis7 has a reputation beyond reputedtravis7 has a reputation beyond reputedtravis7 has a reputation beyond reputedtravis7 has a reputation beyond reputedtravis7 has a reputation beyond reputedtravis7 has a reputation beyond reputedtravis7 has a reputation beyond reputedtravis7 has a reputation beyond reputedtravis7 has a reputation beyond repute
Mac Specs: iMac 2.4 C2D 10.9.4, iMac 2.16 C2d 10.6.8, Macbook2007 10.8.4, Mac Mini 10.8.4, iPhone 3GS Note 8!!

dtravis7 is offline
What app are you using to get those temps? I would use C instead of F BTW as most like me know temps in Centigrade better.
QUOTE Thanks
pm-r

 
Member Since: Oct 16, 2010
Location: Brentwood Bay, BC, Canada
Posts: 302
pm-r will become famous soon enough

pm-r is offline
Wow!!! For someone from Modesto, Ca I'm most impressed that you and "most like"you actually mostly use Centigrade. Not so for the average American, nor like most in the HVAC and similar industries where Fahrenheit is still the standard - even in Canada.

Fahrenheit Versus Celsius: Why the US Hasn't Converted - Weather Glossary - AccuWeather.com

But maybe that's why Apple provides a handy Calculator with a converter. ;-)
QUOTE Thanks
dtravis7

 
dtravis7's Avatar
 
Member Since: Jan 04, 2005
Location: Modesto, Ca.
Posts: 27,482
dtravis7 has a reputation beyond reputedtravis7 has a reputation beyond reputedtravis7 has a reputation beyond reputedtravis7 has a reputation beyond reputedtravis7 has a reputation beyond reputedtravis7 has a reputation beyond reputedtravis7 has a reputation beyond reputedtravis7 has a reputation beyond reputedtravis7 has a reputation beyond reputedtravis7 has a reputation beyond reputedtravis7 has a reputation beyond repute
Mac Specs: iMac 2.4 C2D 10.9.4, iMac 2.16 C2d 10.6.8, Macbook2007 10.8.4, Mac Mini 10.8.4, iPhone 3GS Note 8!!

dtravis7 is offline
Actually almost every program I have ever used on PC's and Macs for he last 15-20 years defaulted to Centigrade. Most Temp readings are quoted that way also. I am not used to see F used for computer temps and I have been around on all the large support forums for many years and a long time computer tech! Grin

Otherwise I would agree with you on C Vs F. I have had many joking wars here on the forums about the two with our Canadian members!
QUOTE Thanks
robpopper

 
Member Since: Nov 02, 2011
Posts: 18
robpopper is on a distinguished road

robpopper is online now
Now using iStat/Menu and the numbers reported are somewhat lower. I'm accepting them as normal. I totally respect those with a greater knowledge as I've just switched,(and loving it!) but as for temperature readouts I'm going to stay with the big "F". Btw, I've just added a powered usb hub as I will be using 3- printers, Wacom tablet, external hd, external optical drive, BT keyboard and mouse; though not all at the same time...

As always, I appreciate all the kind help at this forum. Thx loads.
QUOTE Thanks
harryb2448

 
harryb2448's Avatar
 
Member Since: Nov 28, 2007
Location: Nambucca Heads Australia
Posts: 16,888
harryb2448 has a reputation beyond reputeharryb2448 has a reputation beyond reputeharryb2448 has a reputation beyond reputeharryb2448 has a reputation beyond reputeharryb2448 has a reputation beyond reputeharryb2448 has a reputation beyond reputeharryb2448 has a reputation beyond reputeharryb2448 has a reputation beyond reputeharryb2448 has a reputation beyond reputeharryb2448 has a reputation beyond reputeharryb2448 has a reputation beyond repute
Mac Specs: iMac i5 2.7GHz OS X.9.4

harryb2448 is offline
Winter Down under and my iMac reads:-

Ambient 9º, HD and CPU 19º and Power Supplyº, all of course in ºC.

Wouldn't mind things being warmer all round!

Hang on to those original install discs like grim death! Using OS X.7 or later make a bootable USB thumb drive before running Installer!
QUOTE Thanks
robpopper

 
Member Since: Nov 02, 2011
Posts: 18
robpopper is on a distinguished road

robpopper is online now
Days here lately have been sunny with white puffy clouds. Temps in the upper 70s and lower 80s, all of course in degrees F. My aluminum iMac is running like a Swiss watch.
QUOTE Thanks

Post Reply New Thread Subscribe


« display for mac mini | Is the new Mac Pro 2013 good for an architecture student/Architect »
Thread Tools

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are Off
Forum Jump

All times are GMT -4. The time now is 03:20 PM.

Powered by vBulletin
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
X

Welcome to Mac-Forums.com

Create your username to jump into the discussion!

New members like you have made this community the ultimate source for your Mac since 2003!


(4 digit year)

Already a member?