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Asus Strix X570-F fan headers

ftahir192
By ftahir192
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I'm looking to build a new system with the Asus X570-F Strix motherboard. This contains only 2 chassis fans at 1A each. It also has a CPU OPT fan header, an AIO pump header, a waterpump header and a M.2 fan header. Each of these are also 1A except the waterpump which is 3A.

 48f37e4149977413afe22e25d275081c.png

 

Using the Noctua NF-A15 PWM fan as a reference, how many fans could I theoretically connect to each chassis header using splitters? According to this, the fans have a max input current of 0.08A so I thought it's just 1/0.08 = ~12. Does that mean each header can theoretically run 12 fans? This seems way too high so just wanted to confirm if I'm being stupid.

 

I want to run 6 PWM fans (3 in the front pulling, 1 back and 2 top pushing) but just trying to figure out where I would connect them all and still be able to control them via a BIOS. I'd ideally not want a fan controller but if need be I'll buy one (can pick up a deepcooler 4 fan hub for £10 and then a Y splitter for the second chassis header, or alternatively deepcool's 10 fan header which I think is overkill).

 

Any help is appreciated as this is where I always get confused with hew builds. Seems like motherboards are coming with less and less chassis headers.

 

Thanks!

 

 

 

 

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11 minutes ago, ftahir192 said:

Does that mean each header can theoretically run 12 fans?

You do have to account for a little bit of efficiency loss, but yea fans really dont use a lot of power. But I would usually go for up to 4 fans on a headers.

I would leave both the PUMP headers alone, since those will runs fans at full speed at all times. But the other 4 headers (so that is incuding the CPU_OPT, but not CPU_FAN, since I assume you need that for your CPU cooler) are free.

 

So 4 headers, 6 fans, that means you could get some splitters and you're all done.

Do check where the fan headers are, I suspect the M.2 fan headers might be in the middle of the board for example..

So just get some PWM y splitter, 1 headers to three. Get two of those and you're all good, to connect all your fans to 2 headers. That's the easiest thing to do.

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1 minute ago, minibois said:

You do have to account for a little bit of efficiency loss, but yea fans really dont use a lot of power. But I would usually go for up to 4 fans on a headers.

I would leave both the PUMP headers alone, since those will runs fans at full speed at all times. But the other 4 headers (so that is incuding the CPU_OPT, but not CPU_FAN, since I assume you need that for your CPU cooler) are free.

 

So 4 headers, 6 fans, that means you could get some splitters and you're all done.

Do check where the fan headers are, I suspect the M.2 fan headers might be in the middle of the board for example..

So just get some PWM y splitter, 1 headers to three. Get two of those and you're all good, to connect all your fans to 2 headers. That's the easiest thing to do.

M.2 fan headers on this particular board are at the bottom near the front panel connectors thankfully, so would be easy to run a splitter. Would the M.2 fan not run in accordance to the M.2 drive speed? I would have thought it will.

 

I'm also contemplating the ASUS TUF Gaming Plus which has 3 chassis fans so 3 splitters for that and I'm sorted. Either way, there are solutions now for both via 3 splitters, so thanks.

 

The x570-f has 2 ARGBA headers and the TUF gaming 1, do you know of a solution to also connect 6 ARGB fans to a single header? I'm wondering if at this rate it's worth going for an ARGB PWM fan hub...

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14 hours ago, ftahir192 said:

M.2 fan headers on this particular board are at the bottom near the front panel connectors thankfully, so would be easy to run a splitter. Would the M.2 fan not run in accordance to the M.2 drive speed? I would have thought it will.

You should be able to select which temp sensor each header uses from BIOS. You pretty much have 5 case fan headers that have odd names and of which one could support more fans. All can be controlled with little tweaking, and you can choose from multiple temp sensors. Like for AIO pump, there's no water temp sensor you could use anyway.

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11 minutes ago, LogicalDrm said:

You should be able to select which temp sensor each header uses from BIOS. You pretty much have 5 case fan headers that have odd names and of which one could support more fans. All can be controlled with little tweaking, and you can choose from multiple temp sensors. Like for AIO pump, there's no water temp sensor you could use anyway.

Cool that's good to know, thanks., In that case I'll only need 1 PWM splitter.

 

Do you know of a decent solution for A-RGB? I'm thinking of buying a 1 to 5 RGB-A splitter but not sure how many fans (i.e. Lian-Li bora) I can connect to a header (rated at 3A)

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3 minutes ago, ftahir192 said:

Cool that's good to know, thanks., In that case I'll only need 1 PWM splitter.

 

Do you know of a decent solution for A-RGB? I'm thinking of buying a 1 to 5 RGB-A splitter but not sure how many fans (i.e. Lian-Li bora) I can connect to a header (rated at 3A)

I don't know if there has been any actual testing about how much amps each RGB fan uses. Usually they come with 3-way splitters or own hubs (Corsairs Node Pro with 6 headers for example). Bora's spec sheet give locked and max currency which are 0.2A and 0.45A. They don't specify which would be one for fans, if any. Fractal Design Prisma gives LEDs current as 0.3A. So using those numbers, you could connect max 10 ARGB fans to single header, but maybe to be sure keep it at 6 fans. If you are using bigger hub or controller, those usually have SATA power which makes these restrictions meaningless.

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3 hours ago, LogicalDrm said:

I don't know if there has been any actual testing about how much amps each RGB fan uses. Usually they come with 3-way splitters or own hubs (Corsairs Node Pro with 6 headers for example). Bora's spec sheet give locked and max currency which are 0.2A and 0.45A. They don't specify which would be one for fans, if any. Fractal Design Prisma gives LEDs current as 0.3A. So using those numbers, you could connect max 10 ARGB fans to single header, but maybe to be sure keep it at 6 fans. If you are using bigger hub or controller, those usually have SATA power which makes these restrictions meaningless.

I'm going to have 6 fans total, and my wraith prism cooler. I have 2 headers, so I assume I should be safe with 3 (or even 4) fans on one, and 3 fans + cooler on the other as I imagine the cooler's fan will be similar output.

 

What are your thoughts? I don't have a hub/controller as I haven't found one that is non-proprietary at a decent cost

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1 hour ago, ftahir192 said:

I'm going to have 6 fans total, and my wraith prism cooler. I have 2 headers, so I assume I should be safe with 3 (or even 4) fans on one, and 3 fans + cooler on the other as I imagine the cooler's fan will be similar output.

 

What are your thoughts? I don't have a hub/controller as I haven't found one that is non-proprietary at a decent cost

Most likely it'll be fine.

 

I'll do this by the numbers only. RGB is not my thing.

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1 hour ago, LogicalDrm said:

Most likely it'll be fine.

 

I'll do this by the numbers only. RGB is not my thing.

Okay, thanks.

 

Yep I've actually decided to scale back and just use 3 RGB fans (provided with my case). I'll use the RGB from my wraith prism cooler temporarily but do plan on upgrading to the Scythe Fuma V2 down the line.

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My newly ordered motherboard (ASUS ROG Strix x570-f) has only 2 chassis fans and I have 3 PWM splitters to connect up to 6 fans (only connecting 5 just now). Obviously 2 of the PWM splitters go into the CHA_FAN headers, but I'm not sure where the 3rd is best connected to. I have the following options:

 

1) CPU_FAN_OPT

2) M.2 fan

3) AIO_PUMP

4) WATER PUMP

 

c85deb72645803107747c4842b3411ae.png

 

I'm not using the optional cpu fan as my cooler (Scythe Fuma 2) has a Y splitter so both fans go into the one header. I can use this for the 3rd splitter but my bios won't let me create custom fan curves for CPU_OPT separately AFAIK (it'll run based on CPU_FAN's curves according to the screenshot above).

 

I'm thinking of using M.2_FAN as this seems to resemble a chassis fan header the closest - 1A current and no shared control. But not sure about the other 2 (W_PUMP+ and AIO_PUMP). What's the safest one to use here as my 3rd chassis fan header?

 

 

 

Cheers.

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The back exhaust fan would be good to go into the CPU_OPT header as it will follow the CPU fan curve, promoting good airflow, at least that is what I personally do, I have a large dual fan air cooler as well. 

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Use whichever is most convenient. Going with the header closest to the fan can allow for cleaner cables. 

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*** Threads merged ***

 

The subject is still same, so no need to post another topic.

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