It is currently Thu Dec 18, 2014 5:43 am

All times are UTC - 8 hours




Post new topic Reply to topic  [ 6 posts ] 
Author Message
 Post subject: [SOLVED] CPU fan always at full speed even with "Automatic"
PostPosted: Tue Jul 15, 2014 12:38 pm 
Offline

Joined: Tue Dec 11, 2007 8:54 pm
Posts: 111
Hello

I just bought a mini-ITX host with an ASRock A75M-ITX and powered by an AMD A8-3850.

Even after upgrading the BIOS to the latest release and changing the CPU settings in the H/W Monitor section from "Full On" to "Automatic", the CPU fan is constantly running at full speed.

The fan is connected to the mobo with a four-wire connection (Black, yellow, blue, red). The four-pin connector can be seen in the upper right-hand corner ("CPU FAN") next to the three-pin connector ("CPU FAN2").

Before getting a hardware solution, is there something I could try in software (Windows 7) to regulate its speed?

Thank you.


Last edited by littlebigman on Tue Jul 15, 2014 1:55 pm, edited 1 time in total.

Top
 Profile  
 
 Post subject: Re: CPU fan always at full speed even with "Automatic" in BI
PostPosted: Tue Jul 15, 2014 1:48 pm 
Offline
Moderator

Joined: Thu Oct 06, 2005 4:36 am
Posts: 4769
Location: Monterey Bay, CA
What's the fan's make/model?

_________________
1080p Gaming build: i5-4670K, Mugen 4, MSI Z87-G45, MSI GTX 760 2GB Gaming, 8GB 1866 RAM, Samsung Evo 250GB, Crucial MX100 256GB, WD Red 2TB, Samsung DVD burner, Fractal Define R4, Antec True Quiet 140 (2 front + rear) case fans, Seasonic X-560. 35-40W idle, 45-55W video streaming, 170-200W WoW, 200-230W Rift, 318W stress test (Prime95 + Furmark)

Support SPCR through these links: NCIX, Amazon and Newegg


Top
 Profile  
 
 Post subject: Re: CPU fan always at full speed even with "Automatic" in BI
PostPosted: Tue Jul 15, 2014 1:54 pm 
Offline

Joined: Tue Dec 11, 2007 8:54 pm
Posts: 111
Thanks for the help.

It looks like the stock fan that came with the AMD CPU.

I should have checked in their Download section before asking: ASRock provides a utility called "ASRock Extreme Tuning Utility" that let users manage the CPU fans.

http://www.asrock.com/mb/AMD/A75M-ITX/? ... ad&os=Win7

It's not super-silent yet, but much better.

There isn't a lot of space in that mini-ITX case, but I'll see what bigger CPU heatsink + fan I could use with that CPU.

Thank you.


Top
 Profile  
 
 Post subject: Re: [SOLVED] CPU fan always at full speed even with "Automat
PostPosted: Tue Jul 15, 2014 11:18 pm 
Offline

Joined: Mon Mar 17, 2008 1:49 pm
Posts: 1255
Location: UK
Something still isn't right if the motherboards fan control does not run automatically on its own. I'd suggest you take it up with the motherboard maker - running software is not a complete substitute even if they supply it for free as then it would only support Windows users.

_________________
Silverstone SG03B: E8200, Asus P5E-VM HDMI, 2Gb RAM, Leadtek 9600GT+S1 rev. 2, Samsung 500Gb, Seasonic X-400, 2x Akasa 120mm, Scythe Zipang 2 fanless


Top
 Profile  
 
 Post subject: Re: [SOLVED] CPU fan always at full speed even with "Automat
PostPosted: Wed Jul 16, 2014 3:44 am 
Offline

Joined: Tue Dec 11, 2007 8:54 pm
Posts: 111
It's a second-hand computer. I can always e-mail ASRock, but I doubt I'll get a reply.

Still, even when running at its lowest speed with the case closed (currently at 38°C), I can hear the fan running. Does someone know which heatsink + fan I could use to cool that processor, considering there's 9cm between the mobo and the PSU above the CPU?

CPU = AMD A8-3850
http://shop.amd.com/US/All/Detail/Proce ... AProcessor

Mobo = A75M-ITX
http://www.asrock.com/mb/AMD/A75M-ITX/? ... ifications

Thank you.


Top
 Profile  
 
 Post subject: Re: [SOLVED] CPU fan always at full speed even with "Automat
PostPosted: Wed Jul 16, 2014 5:07 am 
Offline
Moderator

Joined: Thu Oct 06, 2005 4:36 am
Posts: 4769
Location: Monterey Bay, CA
Two possibilities immediately come to mind, please check the mechanical dimensions to see if either will fit your situation.

Noctua L-12...it's 93mm tall...but IF you can fit the 120mm fan into the lower slot, it'll cool your 100W CPU well. With top down coolers, you want at least 1 cm, preferably 2cm between the fan and any occluding surface to not impede airflow.

Scythe Big Shuriken 2 Rev B. Replace the thinline Slipstream fan with a 25mm PWM fan.

_________________
1080p Gaming build: i5-4670K, Mugen 4, MSI Z87-G45, MSI GTX 760 2GB Gaming, 8GB 1866 RAM, Samsung Evo 250GB, Crucial MX100 256GB, WD Red 2TB, Samsung DVD burner, Fractal Define R4, Antec True Quiet 140 (2 front + rear) case fans, Seasonic X-560. 35-40W idle, 45-55W video streaming, 170-200W WoW, 200-230W Rift, 318W stress test (Prime95 + Furmark)

Support SPCR through these links: NCIX, Amazon and Newegg


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: danialbi, Yahoo [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