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

Power Mac - Insanely loud fans on Twin G5


Post Reply New Thread Subscribe

 
Thread Tools
RAHDDS

 
Member Since: Sep 25, 2009
Posts: 3
RAHDDS is on a distinguished road
Mac Specs: Twin G5 2.7, 8X2.8 PowerMac, G4 Powerbook

RAHDDS is offline
SO-
I've been reading posts by others on the loud fans on the Twin G5. Mine is a dual 2.7 processor and is sounds more like I am sitting behind a Saturn 5 rocket. What I don't understand is why my 8 core Intel based Mac Pro is so quiet. I've changed fans and done anything else that Apple recommends.
Anyone out there have another suggestion besides loud music or headphones?
(Sorry, that probably sounds old - noise isolating earbuds!)
Bob
QUOTE Thanks
chscag

 
chscag's Avatar
 
Member Since: Jan 23, 2008
Location: Fort Worth, Texas
Posts: 39,660
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
If you think that's loud, sit in the same room for eight hours where an IBM 360-50 is running.... (Many years ago.)

I don't believe there's much you can do. Most folks who own the same machine (which by the way, is a great machine) complain of the same thing. I guess it's the nature of the beast.

That particular machine runs fairly hot compared to your Mac Pro and that's one of the reasons for the loud fans. Also, if I remember correctly, that model has several groups of fans.

Regards.
QUOTE Thanks
pigoo3

 
pigoo3's Avatar
 
Member Since: May 20, 2008
Location: U.S.
Posts: 26,748
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
Quote:
Originally Posted by RAHDDS View Post
What I don't understand is why my 8 core Intel based Mac Pro is so quiet.
One of the big differences is the G5's used PowerPC CPU's...Mac Pro's use Intel CPU's.

The higher speed PowerPC CPU's were known to generate a lot of heat...thus a lot of fans & fan noise.

- Nick

- 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
RAHDDS

 
Member Since: Sep 25, 2009
Posts: 3
RAHDDS is on a distinguished road
Mac Specs: Twin G5 2.7, 8X2.8 PowerMac, G4 Powerbook

RAHDDS is offline
Thanks for the reply. Sorry if you're next to the IBM - noise cancelling headphones may be in the cards for holiday presents.
I've already changed the fans, am thinking about disconnecting them and putting on an external. But, as you have already surmised, I use the Intel based for most of my work now.
Bob
QUOTE Thanks
martyp

 
Member Since: Jul 14, 2008
Location: Scotland, UK
Posts: 658
martyp is a jewel in the roughmartyp is a jewel in the rough
Mac Specs: MBP 15" Retina, 2.3GHz i7, 16Gb, 512Gb SSD, 750GT. iPhone 5S 64Gb Gold

martyp is offline
Yeah, had the exact same problem with mine. I personally think the 2.7GHz was a step to far for the chips and even with the water cooling they ran HOT!

Best solution I found was to go into System Perferences, Energy Saver, Processor and select 'Reduced'.

Fans spun down and stayed down after that, but doing CPU heavy work took longer.

Highest would be the next setting but I found the fans just stayed constantly noisy. Worst was Automatic, one minute it was silent, click iTunes and all **** breaks loose then back to silence again....
QUOTE Thanks
pigoo3

 
pigoo3's Avatar
 
Member Since: May 20, 2008
Location: U.S.
Posts: 26,748
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
Quote:
Originally Posted by martyp View Post
Yeah, had the exact same problem with mine. I personally think the 2.7GHz was a step to far for the chips and even with the water cooling they ran HOT!
I had a dual-processor 2.3ghz G5...and never had a problem with fan noise...at least not to the point that is was bothersome (just the occasional fan speedup).

Seems like maybe any speed bumps faster than the 2.3ghz dual G5 was/is heat overload for the G5 cooling system.

- Nick

- 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
RAHDDS

 
Member Since: Sep 25, 2009
Posts: 3
RAHDDS is on a distinguished road
Mac Specs: Twin G5 2.7, 8X2.8 PowerMac, G4 Powerbook

RAHDDS is offline
MartyP-
Thanks for the suggestions. I'll try playing with the fan settings. I just hate to have the computer here and unused.
Bob
QUOTE Thanks
martyp

 
Member Since: Jul 14, 2008
Location: Scotland, UK
Posts: 658
martyp is a jewel in the roughmartyp is a jewel in the rough
Mac Specs: MBP 15" Retina, 2.3GHz i7, 16Gb, 512Gb SSD, 750GT. iPhone 5S 64Gb Gold

martyp is offline
No problem at all Bob.

Setting the processor to Reduced ran the fans at 300rpm so you really can't hear them. Think the highest they got was 500rpm, even then its quiet.

Think the speed of the processors is halved when you do that tho...

See how you get on and let us know...
QUOTE Thanks

Post Reply New Thread Subscribe


« I bought a new iMac 24" today!! | Yet another dying PowerMac G5- kernel panics galore »
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

Similar Threads
Thread
Thread Starter
Forum
Replies
Last Post
loud fans on my imac powerpc g5 pedro3178 Apple Desktops 2 02-24-2009 05:01 PM
loud fans. Weird Program that seems to hog CPU. brr1ankim Apple Notebooks 1 11-05-2007 07:54 AM
Loud fans Hustle Apple Notebooks 2 06-24-2007 04:42 PM
Loud Fans with Tiger Install dziner OS X - Operating System 6 05-15-2005 03:09 PM
Loud Fans on iMac G5 w/ 10.3.9 djlee12 Apple Desktops 5 04-21-2005 03:42 PM

All times are GMT -4. The time now is 03:51 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?