How to connect 1 or 2 80mm fans to this PSU

Toggle sidebar Toggle sidebar
M

mrc0de

Commendable
Oct 28, 2016
13
0
1,510
my rig
MOTHERBOARD: ASRock H170M LGA 1151 USB 3.0 Mini ITX
CPU: Intel Core i5-6600 6M Skylake Quad-Core 3.3 GHz LGA 1151
RAM: Crucial 8GB 288-Pin DDR4 SDRAM DDR4 2133
GPU: VGA GeForce GTX 750 2GB GDDR5 PCIe
HDD: SAMSUNG 850 EVO 2.5" 250GB SATA3 SSD
PSU: CORSAIR CS-M Series CS550M 550W 24-pin PSU
CASE: COOLER MASTER Elite 110 Mini-ITX

my case allows 2 additional 80mm fans, how can I connect them to the PSU (or motherboard)? And what is a reliable brand for fans?

Thank you !
 
Solution
madmatt30
http://www.newegg.com/Product/Product.aspx?Item=9SIA2W048D2722&ignorebbr=1

Those pwm pst are the fans you want mate.
That have inline splitter cables & you can plug them into the cpu fan header & split the CPU fan off them.

You'll then get all fans running variable speed based on CPU temps & usage which works well in all honesty.
Use a similar configuration in my small htpc build.
They're low ampage so you'll have no issue running them from the cpu fan board header

Only issue is they're only available in packs of 5 ft newegg .

You can buy single from Amazon for $9.99 each but you may aswell spend $2 extra & have 3 spare fans
Sort by date Sort by votes
What's your whole setup mate ??
Meaning case, CPU, motherboard , & CPU cooler

Plenty of decent 80mm fans but you don't really want to be running straight from molex if you can help it, 80 fans are notoriously noisy at full speed & you'll have no control if they're connected straight to the PSU.
 
Upvote 0 Downvote


Please see my updated info above, and let me know your thoughts. Thanks!
 
Upvote 0 Downvote
You plannng on 2 side intakes for the GPU then ??

In all honesty with just a low power gtx 750 in there there is not a massive need for the 80mm intakes , the case vent is enough in itself for the GPU to draw air in IMO.

If you still want to add them fair enough though , is the included 120mm fan plugged in the board chassis fan header or is it connected to a psu molex cable ??is - do you still have a board fan header free ??

If not are you using the stock Intel cooler ??

 
Upvote 0 Downvote


Matt - appreciate this reply!

I was thinking of putting one fan intake and one outtake on each end of the (small) case.

yeah the 120MM fan (where FSB is) is plugged in and running. Its plugged right into the motherboard (I believe in a 4-pin connector area)

Im using the stock heatsink/fan for the cpu.

Thoughts on how to connect (2) 80mm fans?
 
Upvote 0 Downvote
http://www.newegg.com/Product/Product.aspx?Item=9SIA2W048D2722&ignorebbr=1

Those pwm pst are the fans you want mate.
That have inline splitter cables & you can plug them into the cpu fan header & split the CPU fan off them.

You'll then get all fans running variable speed based on CPU temps & usage which works well in all honesty.
Use a similar configuration in my small htpc build.
They're low ampage so you'll have no issue running them from the cpu fan board header

Only issue is they're only available in packs of 5 ft newegg .

You can buy single from Amazon for $9.99 each but you may aswell spend $2 extra & have 3 spare fans
 
Upvote 0 Downvote
Solution


How do these connect to the PSU? Do you happen to have an example to show? Im pretty rusty on this stuff.

Thanks so much!
 
Upvote 0 Downvote
You don't plug them to the PSU.

You unplug your CPU fan fro the CPU fan header

You plug a pwm pst fan to the CPU fan header
, you plug the other pwm pst fan into the splitter on the first fans cable.
You plug the CPU fan into the splitter on the second fans cable.

You keep the yellow single wires on the fans disconnected & out of the way.

All rpm & monitoring is read from the CPU fan still, the rpm on the 2x 80mm fans will match speeds on the CPU fan.

Meaning they'll ramp up or down as & when required under load .

The f8 are good fans in their own right , the pst ones work really well in the above scenarios.



 
Upvote 0 Downvote


This method sounds unique. I just wonder what happens if the CPU fan doesn't get enough power from the splitter and fails - then you might have a dead cpu too? right?
 
Upvote 0 Downvote
You must log in or register to reply here.

TRENDING THREADS

Latest posts

Moderators online

Share this page

COMPANY
RESOURCES
FOLLOW
Top Bottom