It is currently Sat Sep 20, 2014 7:18 pm

All times are UTC - 8 hours




Post new topic Reply to topic  [ 8 posts ] 
Author Message
 Post subject: mini itx mobo with more than 2 true pwm fan headers?
PostPosted: Fri Apr 25, 2014 9:25 am 
Offline

Joined: Fri Apr 25, 2014 9:23 am
Posts: 3
is there such a thing?


Top
 Profile  
 
 Post subject: Re: mini itx mobo with more than 2 true pwm fan headers?
PostPosted: Fri Apr 25, 2014 11:30 pm 
Offline
*Lifetime Patron*

Joined: Thu Feb 13, 2003 6:53 am
Posts: 1522
Location: Sweden
Do you need independent headers? Otherwise there are pwm fan splitters.

_________________
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 520 120GB | HDPLEX H1-S | picoPSU | No moving parts | Idle 11.2W
Gaming: Intel DH77EB | i5-3570K | GTX 750 Ti | 16GB DDR3 | Intel 520 120GB | TJ08-E | G-360 360W
Server: Intel DH77DF | i3-2100T | 4TB+3x3TB | picoPSU | Idle 24W AC


Top
 Profile  
 
 Post subject: Re: mini itx mobo with more than 2 true pwm fan headers?
PostPosted: Sat Apr 26, 2014 10:09 am 
Offline

Joined: Fri Apr 25, 2014 9:23 am
Posts: 3
How many fans can I ran from a single header? Current wise


Top
 Profile  
 
 Post subject: Re: mini itx mobo with more than 2 true pwm fan headers?
PostPosted: Sat Apr 26, 2014 3:14 pm 
Offline

Joined: Mon Aug 05, 2013 1:01 pm
Posts: 82
Location: Scandinavia
No. Not that I'm aware of. Asrock ITX motherboards provide only 2 genuine PWM headers.
susdu wrote:
is there such a thing?

_________________
Main: TJ08-E|NF-S12A; Asrock B85M Pro4; i5-4430|NH-U12S; 16G@1600; MSI GTX660OC|Alpenföhn Peter|2x NF-S12A; Intel 330 180G|335 240G; Corsair RM650; Dell U2713HM; BlasterAXX SBX10; Blu-ray SH-B123L, Family: PC-TU100A|NF-S12A; Asrock H81M-ITX; i3-4130|Big Shuriken 2B; SilverStone ST30SF, HTPC: PC-Q11A|NF-A14; Asrock B75M-DGS; i3-2100; Zotac GT640 Fanless; Seasonic SS-400FL2


Top
 Profile  
 
 Post subject: Re: mini itx mobo with more than 2 true pwm fan headers?
PostPosted: Sat Apr 26, 2014 4:41 pm 
Offline

Joined: Thu Nov 19, 2009 10:20 am
Posts: 475
Location: Ottawa
susdu wrote:
How many fans can I ran from a single header? Current wise

Depends on the MB. It's usually specified somewhere in the manual.

There are PWM splitters that use a standard 4-pin molex (PATA hard drive power) connector so you don't have to worry about how much the MB can supply.


Top
 Profile  
 
 Post subject: Re: mini itx mobo with more than 2 true pwm fan headers?
PostPosted: Sat Apr 26, 2014 8:46 pm 
Offline

Joined: Sun Feb 06, 2011 11:19 pm
Posts: 75
Location: North of the 49th parallel
4-Wire Pulse Width Modulation (PWM) Controlled Fans Specification(PAE Tech Pubs - Intel, Folsom) wrote:
2 Electrical Specifications
2.1.2 Current
Steady state operation fan current draw (with 12.6 V applied, with fan operating in the free stream
condition) shall not exceed 1.5 A.
Fan current spike during start-up operation (with 12.6 V applied, with fan operating in the free
stream condition) shall be allowed to exceed 1.0 A, up to 2.2A maximum for a duration of no
greater than 1.0 sec.


I would interpret the quote that up to 1A is safe load, just to be on the safe side.


Top
 Profile  
 
 Post subject: Re: mini itx mobo with more than 2 true pwm fan headers?
PostPosted: Sun May 04, 2014 11:40 pm 
Offline

Joined: Fri Apr 25, 2014 9:23 am
Posts: 3
Thank you all for the info. PWM splitters it is.


Top
 Profile  
 
 Post subject: Re: mini itx mobo with more than 2 true pwm fan headers?
PostPosted: Thu Aug 28, 2014 5:35 am 
Offline

Joined: Thu Aug 28, 2014 5:32 am
Posts: 1
susdu wrote:
is there such a thing?


Asus P8Z77-I Deluxe has two true PWM fan headers, and no DC control

Came here via google wondering if anyone knows of a Z97 mini ITX board with more than one true PWM fan headers? :D

After more searching Asus Z97I-Plus might have 3 PWM headers. The manual lists pin4 as 5V, but suggests there is an option in BIOS to switch from DC to PWM control.


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 8 posts ] 

All times are UTC - 8 hours


Who is online

Users browsing this forum: Bing [Bot] and 2 guests


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