It is currently Wed Nov 20, 2019 5:53 am

All times are UTC - 8 hours




Post new topic Reply to topic  [ 6 posts ] 
Author Message
 Post subject: use Northbridge cooler as a cpu cooler in 2009 Mac Mini?
PostPosted: Sat Sep 19, 2015 10:37 pm 
Offline

Joined: Sat May 21, 2005 9:48 am
Posts: 448
I'm having trouble finding stock of northbridge coolers, specifically those with heatpipes, like the thermalright, noctua, etc.

My goal is to make this old Mac Mini Fanless; it uses a 25W laptop CPU with a small stock heatsink so I think it's feasable with a large, heatpipe powered Northbridge cooler, if the mounting holes fit. There are 4 holes however; will it have enough pressure with the typical 2-pushpin Northbridge cooler? It also doesn't have a heatspreader. I won't be using the cover/case.

Image

_________________
P4 2.8 w/ Ninja - HIS Radeon 9800 Pro - Fortron Zen 300W fanless - BQE Case Fan @ 12V, Sflex @ 5V


Top
 Profile  
 
 Post subject: Re: use Northbridge cooler as a cpu cooler in 2009 Mac Mini?
PostPosted: Sun Sep 20, 2015 12:04 am 
Offline

Joined: Wed Jun 13, 2007 10:12 am
Posts: 5275
Location: ITALY
cloneman wrote:
will it have enough pressure with the typical 2-pushpin Northbridge cooler? It also doesn't have a heatspreader.

You need a spacer or a thick chipset thermal pad, in order to do not damage the die.

Providing that, I guess that something like a two-heatpipes heatsink could do the job (like the discontinued Thermalright HR-05 SLI/IFX: I used it for cooling an overclocked G45 chipset, which is rated around 24-26W IIRC), but it wouldn't be stable (you can't move around the case without checking everytime if it's correctly seated). With anything smaller (even like the HR-05 IFX, not SLI), your mileage may vary, given that 25W are at any rate "a lot" of thermal power for small heatsinks. Take also note that, more probably that not, you will need to actively cooling it.

BTW, it's a BGA479 chip, so the mounting holes could be close to those needed by any Intel PGA478 (P4) cooler, like the Scythe Shuriken Rev. B (though I can't say whether it fits for sure: I guess it should, given there's still some cooler for both those mounting holes).

_________________
Regards,
Luca

Support SPCR, use these links when you buy: NCIX, Amazon and Newegg


Last edited by quest_for_silence on Sun Sep 20, 2015 2:42 am, edited 2 times in total.

Top
 Profile  
 
 Post subject: Re: use Northbridge cooler as a cpu cooler in 2009 Mac Mini?
PostPosted: Sun Sep 20, 2015 2:22 am 
Offline

Joined: Wed Jun 13, 2007 10:12 am
Posts: 5275
Location: ITALY
cloneman wrote:
I'm having trouble finding stock of northbridge coolers, specifically those with heatpipes, like the thermalright, noctua, etc.

Check whether the apparent availability is actual or not:



You might also look for the Coolink ChipChilla.

_________________
Regards,
Luca

Support SPCR, use these links when you buy: NCIX, Amazon and Newegg


Top
 Profile  
 
 Post subject: Re: use Northbridge cooler as a cpu cooler in 2009 Mac Mini?
PostPosted: Tue Nov 17, 2015 10:16 pm 
Offline

Joined: Sat May 21, 2005 9:48 am
Posts: 448
I ended up going with the only NB heatsink I could find. It's not big enough to be _comfortably_ fanless (reaches ~85C under load). http://www.moddiy.com/products/PC-Coole ... oler-.html

Realized afterwards I should have just gotten a GPU cooler, that probably would have fit assuming clearance.

I might end up using the NB cooler for the actual nvidia 9400 northbridge which runs hot due to its diminutive heatsink.




Progess:
Image

_________________
P4 2.8 w/ Ninja - HIS Radeon 9800 Pro - Fortron Zen 300W fanless - BQE Case Fan @ 12V, Sflex @ 5V


Top
 Profile  
 
 Post subject: Re: use Northbridge cooler as a cpu cooler in 2009 Mac Mini?
PostPosted: Sat Jun 11, 2016 1:44 am 
Offline

Joined: Sat May 21, 2005 9:48 am
Posts: 448
Update:

Replaced the tiny tower cooler with a Cooler Master T2 for real sustained fanless operation.
Stress test now: 70C
Gotta take this off my bucketlist now.

Before
Image

After
Image

Notice I added a Zalman NB cooler for the Nvidia 9400 chipset.

_________________
P4 2.8 w/ Ninja - HIS Radeon 9800 Pro - Fortron Zen 300W fanless - BQE Case Fan @ 12V, Sflex @ 5V


Top
 Profile  
 
 Post subject: Re: use Northbridge cooler as a cpu cooler in 2009 Mac Mini?
PostPosted: Sat Jun 11, 2016 6:12 am 
Offline
*Lifetime Patron*

Joined: Thu Feb 13, 2003 6:53 am
Posts: 1816
Location: Sweden
Very nice! :) Thanks for the update.

_________________
Main: ASRock B85M-ITX | i3-4330 | 16GB DDR3 | Intel 730 240GB | HDPLEX H1-S | picoPSU | No moving parts | Idle 13.9W
HTPC: ASRock H81M-ITX | Pentium G3420 | 4GB DDR3 | Intel 535 120GB | HDPLEX H1-S | picoPSU | No moving parts | Idle 11.2W
Gaming: Intel DH77EB | i5-3570K | GTX 1060 6GB | 16GB DDR3 | TJ08-E | RM750X
Server: ASRock N3150-ITX | ~30TB | G-360 | Idle ~25W


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 6 posts ] 

All times are UTC - 8 hours


Who is online

Users browsing this forum: Majestic-12 [Bot] and 1 guest


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group