Ad
News

Artic Cooling's Triple Fan Graphics Cooler

Published on January 11, 2008

Those looking for the biggest thing in graphics cooling may find the new Accelero Xtreme 8800 and 2900 coolers a perfect solution. Read more

Homemade Firefox videos to become TV ads

Published on December 07, 2006

Mozilla announced today that Firefox browser fans are underwriting four 30-second videos to air on U.S. primetime TV this month. Read more

Enermax Turns Up The Heat At Computex

Published on June 04, 2008

Taipei (Taiwan) - Just when you thought power supplies and fans were boring, Enermax is showing off some pretty hot (literally) gear at this year's Computex convention in Taipei. Read more

Sunon: Fans and Blowers for Automotive Applications

Published on June 04, 2008

Sunon is a popular manufacturer of high-quality fans and blowers. We did not know that it doesn’t only provide these devices for PC applications, but also to BMW and Mercedes – just to name two. Read more

Latest Reviews & Articles

System Builder Marathon: Performance & Value

Published on October 31, 2008

Three dramatically different builds face off in a show of performance, defining the real value of each. Our mainstream system is designed to meet the needs of most users. Who should spend more and who can live with less? Read more

System Builder Marathon: $500 Gaming PC

Published on October 30, 2008

For the second to last day of our System Builder Marathon series, we add a $500 gaming PC to the mix. It's not going to be as quick as our other two builds, but we think Paul was able to get some serious value from this thing. Read more

Tom's SBM: The $1,500 Mainstream PC

Published on October 29, 2008

We're following up yesterday's $4,500 behemoth with a more affordable $1,500 mid-range build. Let's see what sort of performance (and overclocking headroom) you can get when you spend one third of the money. Read more

System Builder Marathon: The $4,500 Super PC

Published on October 28, 2008

This month's System Builder Marathon spreads the system prices out even further to $4,500, $1,500, and $500. Is today’s $4,500 system really worth three times as much as an upper-mainstream performance machine? Read more

  Tom's Hardware Forums » Overclocking » Motherboards » Fans Installation
 

Fans Installation




Word :   Username :  
 
Bottom
Author
 Thread : Fans Installation
 
kad
Profile: addict
More Information

Hi all

I'm building my new PC and faced this problem
I have Lian Li case with 4 fans having (3 pin) connectors + adaptor to (4 pin molex)
Ultra 120 extreme HS with Scythe S-Flex SFF21F cooling fan
So total 5 fans
Asus Rampage Formula has 6 on board fan connectors (3 pin)+CPU fan connector(4 Pin)
Scythe S-Flex SFF21F connector is (3 pin)+(4 pin molex adaptor) and can not be connected to (3 pin )CPU fan connector on mobo
Of course my power supply has enough (4 Pin) molex connectors
What shall I do??
Connect Scythe S-Flex SFF21F cooling fan to the Power Supply connector and bypass mobo ??
Connect all other 4 fans again directly to power supply molex connectors and bypass mobo ??
I will not be using any mobo fan connector !!!
I ckecked mobo manual and installatin guide but nothing mentioned !!
Can anybody help please
I'm stuck here with all thigs on the floor :cry:

Related Product

Register or log in to remove.

Profile: enthusiast
More Information

I would think that as long as you don't mind running the Scythe at full speed all the time the molex would be fine. Unless the BIOS wont let the system come up without a cpu fan connected to the cpu pins. If it does come up disable the smart fan control in the BIOS.

kad
Profile: addict
More Information

Lord Gornak wrote :

I would think that as long as you don't mind running the Scythe at full speed all the time the molex would be fine. Unless the BIOS wont let the system come up without a cpu fan connected to the cpu pins. If it does come up disable the smart fan control in the BIOS.



This what I'm worried about
Cause normally system will not boot if CPU fan is not connected and detected

Profile: addict
More Information

kad wrote :

This what I'm worried about
Cause normally system will not boot if CPU fan is not connected and detected

 


you can disable that inside your bios...
so it will just ignore your CPU fan speed.


---------------
Invented a new file compression... remove all the '0'. They are nothing anyways...
Q6600 O/C to 3.6Ghz wc
http://valid.x86-secret.com/show_oc.php?id=229261
The Order Odonata - We do what we must
Profile: Faithful Poster
More Information

kad wrote :

Hi all

 

I'm building my new PC and faced this problem
I have Lian Li case with 4 fans having (3 pin) connectors + adaptor to (4 pin molex)
Ultra 120 extreme HS with Scythe S-Flex SFF21F cooling fan
So total 5 fans
Asus Rampage Formula has 6 on board fan connectors (3 pin)+CPU fan connector(4 Pin)
Scythe S-Flex SFF21F connector is (3 pin)+(4 pin molex adaptor) and can not be connected to (3 pin )CPU fan connector on mobo
Of course my power supply has enough (4 Pin) molex connectors
What shall I do??
Connect Scythe S-Flex SFF21F cooling fan to the Power Supply connector and bypass mobo ??
Connect all other 4 fans again directly to power supply molex connectors and bypass mobo ??
I will not be using any mobo fan connector !!!
I ckecked mobo manual and installatin guide but nothing mentioned !!
Can anybody help please
I'm stuck here with all thigs on the floor :cry:

 

I use a Lian-Li case and a Rampage Formula (see my sig) too. I use 4 Scythe S-Flex SFF21D fans and two Antec 3-speed fans, and the 4-pin PWM CPU fan. I'm not sure I understand your dilemma, am I misreading something in your post? The Scythe's 3 pin fan connectors can connect to the motherboard. Just connect some of the 3-pin fans you can to the mobo and connect the others to the 4-pin Molex. That's what I did, works fine. I know you may give up fan-speed control but are the 21F's noisy?

 

EDIT: Just saw some of the latest posts. On the Rampage Formula you can do a couple of things. You can connect a 3-pin fan to the mobo's CPU fan header, it'll just run @ full blast. You can also disable the CPU fan warning.


Message edited by halcyon on 05-02-2008 at 10:11:19 PM

---------------
Yes, I use an Intel Quad. Sometimes its a little overclocked, sometimes a bit underclocked. Yet, its always nice, the virtualiztion is sick. And?
kad
Profile: addict
More Information

MadHacker: Thanks

halcyon:Thanks a lot
I googled CPU FAN PWM and found the fourth pin PWM is pulse width modulation. It uses pulses of the full voltage and some people are bending it even to disable its function
However this what I will do
Connect CPU fan to mobo adaptor forgetting PWM pin
Connect 2 case fans to CHA FAN 1 and CHA FAN 2 on mobo
Connect another 2 case fans to OPT FAN 1 and OPT FAN 2 on mobo
And see what will happen

Thanks guys


  Tom's Hardware Forums » Overclocking » Motherboards » Fans Installation

Go to:
 

Google Ads