Where To Connect Case Fan,PSU Or Motherboard

CryptoLocker · Jun 8, 2015

Please Help.I Am Really Confuse

JackNaylorPE · Jun 8, 2015

Motherboard ... could give better answer if ya listed components involved.

synphul · Jun 8, 2015

If you connect to the motherboard you'll likely have a way to control fan speed. If you plug it to the psu it will run full speed all the time.

CryptoLocker · Jun 8, 2015

Ok Example:I Just Run Of Chassis Fan Pin.

I Want To Add More.Can I Connect Them To PSU

JackNaylorPE · Jun 8, 2015

Again, if you name the case, MoBo, PSU more accurate answers could be given.

MoBos typically have numerous fan headers.... you can run numerous fans off a single header. There is no need to run fans off a CPU. I have 15 fans running off 3 headers using inexpensive PCBs.

How many fans do you want to run ?

What model fans are they ?

What case (make and model) are you using ?

What is make and model number of Mobo ?

Run 3 fans off 1 header - $3.99
http://www.performance-pcs.com/modmytoys-3-pin-power-distribution-pcb-3-way-block.html

Run 3 fans off 1 header - $4.25
http://www.performance-pcs.com/modmytoys-3-pin-power-distribution-pcb-5-way-block.html

Run 4 fans off 1 PWM header - $4.99
http://www.performance-pcs.com/modmytoys-4-pin-pwm-power-distribution-pcb-4-way-block.html

CryptoLocker · Jun 8, 2015

Fan:Bitfenix Specter

Case:Bitfenix Neos

Mobo:Asus H81M-C

JackNaylorPE · Jun 9, 2015

1 x CPU Fan connector(s)
1 x Chassis Fan connector(s)

One problem solved, your MoBo has 1 CPU and 1 CHA fan header

2. There are 75 different Bitfenix Spectre fans; next time try and be more specific.
http://www.newegg.ca/Product/ProductList.aspx?Submit=ENE&IsNodeId=1&N=100007997%2050072745%20600035565

3. The case has 3 fan mounts, 1 is included
http://www.bitfenix.com/global/en/products/chassis/neos#specs

Cooling Front 2 x 120mm (optional)
Cooling Rear 1 x 120mm (included)

Since it only fits 120mm fans, we can reduce the potential fan count to 22
http://www.newegg.ca/Product/ProductList.aspx?Submit=ENE&IsNodeId=1&N=100007997%20600035565%2050072745%20600035590%20100007997+50072745+600035565

So now we still need to know how many you want to put in and which fan it is ....

The fastest DC 3 pin fan they have is 1200 rpm
BitFenix Spectre Pro

http://www.bitfenix.com/global/en/products/accessories/spectre-pro#specs

Web site says they are 0.11 amps.... 3 of them amps 0.33, well less than the typical 1 amp header rating of the tyoical MoBo. You should have no problem running three 3 pin fans off that one header using the $3.99 PCB recommended above.

The PWM version of the fan at 1800 rpm pulls 0.2 amps, you'd have no issue using 3 or 4 of them off the CPU header (assuming its PWM) .... 1 on CPU cooler and 3 in case or 2 / 2 using the $4.99 PCB recommended above
http://www.bitfenix.com/global/en/products/accessories/spectre-led-pwm#specs

CryptoLocker · Jun 9, 2015

Well Thanx Very Much JackNaylorPE

Well I Need 2 Fan And Install At Front Cooling To Make Sure The Case Cool

Can I Connect These Two To Psu

JackNaylorPE · Jun 12, 2015

Again, connecting to PSU ....

-most fans today don't have molex connectors. you'd have to buy an adapter
-you will have no speed control