Do i lose power / rpm when connecting a fan splitter to motherboard ? ( 1 plug to 4 fans )

[matpc]

i already have 3 sickleflow only ( would buy 4 more deepcool)

2 sickleflow front
1 sickleflow back
2 deepcool bottom and 2 top

hmm i will see if i can find 4 more sickleflow red

the sickleflow is better overall

but regarding the airflow , do you guys think it is a good improvement 2 bottom 2 top for the nvme?

 

[A Computer Guy]

2 sickleflow front
1 sickleflow back
2 deepcool bottom and 2 top

hmm i will see if i can find 4 more sickleflow red

the sickleflow is better overall

but regarding the airflow , do you guys think it is a good improvement 2 bottom 2 top for the nvme?

Case fans are for trying to remove heat out of the case. (also bring cool air in) The most effective way to air cool an individual component inside the case is to ensure it gets direct airflow to move heat away from the component as fast as possible. Then case fans exhaust the heat out of the case.

It's difficult to say how effective your setup will be simply by adding more case fans. If your NVMe doesn't get increased air flow to make a meaningful difference then it's kind of pointless.


For example: I used to have a small fan pointed at my NVMe because my case has a huge deadspot for air flow right above the GPU.
This did more to cool my NVMe than ramping all my case fans (top, bottom, and side) up to 100%.

 

[matpc]

hmm i see

i came with this idea of bottom/top fans because my system isn´t custom

maybe is there another way to improve the ssd temp?

like i said it is not terrible anymore , just gamed 4 hours straight and it averaged 57 degrees

 

[Dr. Dro]

[Phonetically] Ka-Boom .com

Do some math on rated power draw of all fans combined and cross reference with amount a single fan header can supply (1w typically). Probably better off buying a fan hub or just using the headers on your board.

Funny name, but used to be the best store here in Brazil until a certain department store bought them out.

what is the best alternative ?

Just buy a controller hub I have this one it works great

https://www.terabyteshop.com.br/produto/10960/controlador-de-fan-deepcool-fh-10-com-10-saidas-de-3-e-4-pinos-funcao-pwm-dp-f10pwm-hub

 

[matpc]

Funny name, but used to be the best store here in Brazil until a certain department store bought them out.



Just buy a controller hub I have this one it works great

https://www.terabyteshop.com.br/produto/10960/controlador-de-fan-deepcool-fh-10-com-10-saidas-de-3-e-4-pinos-funcao-pwm-dp-f10pwm-hub

Despite this one being better i don´t know if it will make any difference using the one from kabum right?

 

[Ruru]

Despite this one being better i don´t know if it will make any difference using the one from kabum right?

At least with that, you don't need to worry about the connectors' current capability as it's SATA powered.

 

[matpc]

At least with that, you don't need to worry about the connectors' current capability as it's SATA powered.

it is about 10 times the value , i also won´t connect more than 3 fans in the 2 splitters as well

 

[Zach_01]

In your system specs you only have 1 SSD.
So I assume it’s the one above the GPU.
In this case the 1 move that will improve NVMe temp drastically is to place a fan on the backplate of the GPU to direct airflow on the drive.

 

[matpc]

In your system specs you only have 1 SSD.
So I assume it’s the one above the GPU.
In this case the 1 move that will improve NVMe temp drastically is to place a fan on the backplate of the GPU to direct airflow on the drive.

how can i lock the fan ? to not being just released at the gpu?

is there any problem leaving the fan above the gpu as well?

thanks

 

[D007]

I use this Hub.
Don’t get a super cheap one. They can break easy and the metal is exposed which is dangerous.

Silverstone fan hub

And yes you loose a little power but not much.
Fans are different though. You have to look at their power draw.

 

[matpc]

i think i will just get 2 fans , one below the gpu (near the ssd) and one in the backplate of the gpu

i guess the one in the gpu will probably fix it already

i think i will just get 2 fans , one below the gpu (near the ssd) and one in the backplate of the gpu

i guess the one in the gpu will probably fix it already

will try to align the bottom one to favor the airflow to the ssd and one fan in one in the gpu

 

[Zach_01]

how can i lock the fan ? to not being just released at the gpu?

is there any problem leaving the fan above the gpu as well?

thanks

You don’t have to lock it, just place it there

I’m borrowing a pic from @freeagent from another post. This is for Ram cooling but the principal is exactly the same. Only thing different is the orientation of the fan.

 

[Carlyle2020hs]

Look for a power brick:

A fan at 100 % needs 12V and its listed 0,X amps.
A fan at 70% needs 7V and double the amps as reserve.
A fan at 50% needs 5-6V and tripple the amps as reserve.

Go dumpster dive and find one that suits your needs:

If you want to get fancy buy a 12V one like in this picture and connect a nocuta 3x fan controller:

NA-FC1

Der NA-FC1 ist eine kompakte, hochflexible Steuerung für 4-Pin PWM Lüfter. Er kann sowohl eigenständig zur manuellen Geschwindigkeitsregelung als auch in Kombination mit der automatischen Lüftersteuerung von PC Mainboards verwendet werden. Mittels des zentralen Drehreglers können Anwender...

noctua.at

You can even buy fans that can fan control themselves (100 / 75 / 50 %):

disclaimer:

And if your house burns down don´t blame me please

 

[ty_ger]

You don't need a hub with a physical box. They make splitters exactly like the one you originally linked that simply has one more connector (molex or sata power).

For example:

Amazon.com

The way it works is that all the fans get power and ground directly from the power connector, and the motherboard fan header does nothing except provide a PWM signal to all 4 fans, and receive a fan tachometer feedback from one specific fan from one dedicated 'master' fan connector. That way it will never overload your motherboard header no matter how many fans you connected. The PWM signal is high impedance, won't be overloaded, and doesn't get damaged. As long as you don't accidentally daisy chain the tachometer feedback signal, you could daisy-chain 100 fans this way accross 33 of these splitters daisy-chained together and not overload one motherboard header. You can't damage anything by accidentally daisy-chaining the fan tachometer wire, it just won't work properly if it receives competing fan RPM signals. Only thing you have to worry about is that each 4 fans don't overload each sata power connector. Molex has a higher power rating than sata, so if you find one of these splitters with molex power input, even better.

Like this, except less ugly?

Amazon.com

It is completely illogical that 'unpowered' hubs or splitters even exist, and completely illogical that so many are ugly big boxes for no apparent reason. The great thing about PWM fans is that they only require 4 wires, and 2 of those wires can come directly from your PSU. There is no extra circuitry needed. It only requires wires and connectors. There is no rule that 4 wires need to go to an ugly box and have a circuit board. Those hubs are just big, ugly, and more expensive for no reason.

 

[iuliug]

For example: I used to have a small fan pointed at my NVMe because my case has a huge deadspot for air flow right above the GPU.
This did more to cool my NVMe than ramping all my case fans (top, bottom, and side) up to 100%.

What were the temps of that SSd that you made that contraption?

 

[nomdeplume]

Funny name, but used to be the best store here in Brazil until a certain department store bought them out.

It would've been a reach if concerns about blowing out board components weren't fresh in mind.

i mean 3 fans on the splitter because i already have 3 case fans on my system already

but i would be 2 front , 2 top , 1 back , 2 bottom really

the rest of my system has good temps , my aim is to improve the airflow near the nvme a bit

Sorry to reply and leave.

Looking at your case layout and general topic of fan tuning (with awareness of supply and pricing in your part of the world). This is always a matter of trial and error. Parts should only be purchased after deciding they are needed. One thing you can try is removing frontmost top fan and placing it in empty bottom slot on front panel. In many cases this has better results than exhausting fresh air before it can reach cpu or top NVMe mount.

I agree with all that has been said about mixing fans on a splitter and going out of the way to avoid low quality solutions (hub or splitter). Three identical front fans or two identical bottom fans on separate splitter(s) or a five way powered hub would be ideal use of money. Test with what you have and be smart about any purchases.

The only 'ugly' solution that hasn't been mentioned is taking off the side panel and sitting a large house fan pointing directly into the case for long gaming sessions.

 

[eidairaman1]

get an active fan hub

And do some research on the products website, look at reviews, even youtube, using your webbrowser and search engine such as askjeeves

Also rtfm

 

[A Computer Guy]

What were the temps of that SSd that you made that contraption?

I simply used an 40mm fan on top my my GPU so I didn't really make anything. At the time I was using an EK NVMe heatsink and thought the fins would be helpful (because more surface area) but it was simply very poor at dissipating heat without airflow (duh). At the time of posting last night I couldn't find an original picture but I did this morning posted below.
I don't recall the exact temps but I want to say it was in the high-60's/mid-70's with a Samsung 970 at the time and with the fan in the mid 40's.

After my motherboard replacement to the Taichi x570 the heatsink was so massive the drives just hovered in the mid 40's no additional fan required.

The picture I had originally provided (below) was after my board swap I was experimenting with ram cooling and forgot to place the fan in position.
( I'm surprised I didn't trigger any comments about the fan being pointed the wrong way )

 

[Bill_Bright]

You do NOT lose power. You divide it among multiple devices. As others have noted, you should not do this through a motherboard header - unless you really do your homework and make sure it can electrically support the load.

I personally recommend using a lead directly from the PSU.

 

[Dr. Dro]

Despite this one being better i don´t know if it will make any difference using the one from kabum right?

One I linked supports 10 fans and speed control through just 1 plug. It's better and won't overload your motherboard's fan connector as it draws power from a SATA cable.

 

[freeagent]

If anything the fans wont run as fast as they could. I doubt you will have a problem, most consumer fans are pretty weak and don't draw a lot of power.

 

[matpc]

hey guys i bought just 2 sickleflows and one splitter

i´m wondering if i get one more and use 1 bottom , 1 in the bracket and 1 exhaust

is there any problem leaving the case fan ''mounted'' at the gpu bracket ?

i guess only one fan may resolve the problem already

i thought 2 bottom and 2 top being the conventional way but i´m sure one mounted in the gpu bracket will improve much more

despite it running hotter , it is way better than sata interface for real

 

[nomdeplume]

hey guys i bought just 2 sickleflows and one splitter

i´m wondering if i get one more and use 1 bottom , 1 in the bracket and 1 exhaust

is there any problem leaving the case fan ''mounted'' at the gpu bracket ?

i guess only one fan may resolve the problem already

i thought 2 bottom and 2 top being the conventional way but i´m sure one mounted in the gpu bracket will improve much more

despite it running hotter , it is way better than sata interface for real

With exception of a fan sitting on the gpu backplate aimed at your board there is little we can state with absolute surety. Every case/build/tune is unique in ways that require a bit of work to figure out the optimal cooling conditions.

Sounds like you are off to a good start now. If you decide to see what full speed on the loose fan does make sure to secure it somehow.

 

[A Computer Guy]

With exception of a fan sitting on the gpu backplate aimed at your board there is little we can state with absolute surety. Every case/build/tune is unique in ways that require a bit of work to figure out the optimal cooling conditions.

Sounds like you are off to a good start now. If you decide to see what full speed on the loose fan does make sure to secure it somehow.

Fan finger guards recommended. Keeps both fingers and loose cables out of the fan.

 

[matpc]

Hey guys , this is a old pic but it is the same as i use now

I´m wondering , is it bad to put a fan above the gpu against the case airflow maybe?

when doing 9 loops with 64gb , it peaks at 72 degrees ( the 66 degrees were at 1gb data)

how can i accurately help the temps without hindering airflow ? sorry it is because i´m bit tired of benchmarking , assembling PCs etc ...]

should it put it below , bottom or left / right side above the gpu ?
thanks