Fan current

[ivanteng880]

Hi, I was looking into the cooler master master fan pro rgb and I saw two different voltages, and what do each of them mean, what's the difference between rated current and safety current? If my motherboard's fan header's max is 1A, how many of that fan can i put on one header without it breaking? If I'm going to use a fan splitter, what voltage should I be worried about? 

[ivanteng880]

Hi, I’m looking into a cooler master fan and im wondering how many fan can I plug into a fan header, on the specs it said the safety current is 0.37A and the rated current is 0.22A so I assume that the max power it can pull at once is 0.22A and therefore I can put 3 of them on one motherboard fan header right?

[Blebekblebek]

Safety current is for your max equipment load

Rated current is for your equipment to use safely without breaking/overheat.

 

It's ampere & voltage not just voltage, if its require 5v at 0.17a then 0.17a is should be delivered, although it could deliver 0.4a at peak however it should only use 0.17a.

 

Never goes full load on power all the time, it's like golden rule of powering something.

While your header maxed at 1A, don't use more than 4 fans (0.4a rated) on to it, although it can since the rated current only 0.17a.

 

 

 

[W-L]

1 minute ago, ivanteng880 said:

Hi, I’m looking into a cooler master fan and im wondering how many fan can I plug into a fan header, on the specs it said the safety current is 0.37A and the rated current is 0.22A so I assume that the max power it can pull at once is 0.22A and therefore I can put 3 of them on one motherboard fan header right?

As long as the header is rated for 1Amp capacity yes 3 fans would be relatively safe given it only draws a total of 0.66A when running. The reason for the safety current is the sudden current draw when starting the fans which would take around 1.1Amps, a little over the rating of a 1Amp header. 

[ivanteng880]

4 minutes ago, W-L said:

As long as the header is rated for 1Amp capacity yes 3 fans would be relatively safe given it only draws a total of 0.66A when running. The reason for the safety current is the sudden current draw when starting the fans which would take around 1.1Amps, a little over the rating of a 1Amp header. 

So I should only put 2 fans per header, correct?

[W-L]

3 minutes ago, ivanteng880 said:

So I should only put 2 fans per header, correct?

Two would be the safest option, I'd personally test the fans to see if it actually peaks that high for the starting current but it's up to you. If you need you can also get a powered fan hubs if they're 4 pin PWM fans. 

[ivanteng880]

1 minute ago, W-L said:

Two would be the safest option, I'd personally test the fans to see if it actually peaks that high for the starting current but it's up to you. If you need you can also get a powered fan hubs if they're 4 pin PWM fans. 

One more question, if I decide to go with a Corsair fan which does not support aura sync which my motherboard and ram is going to use, will the whole thing freak out? Like stop working. (BTW the Corsair uses a sperate hub and app)

[W-L]

Just now, ivanteng880 said:

One more question, if I decide to go with a Corsair fan which does not support aura sync which my motherboard and ram is going to use, will the whole thing freak out? Like stop working. (BTW the Corsair uses a sperate hub and app)

It uses the Corsair Link ecosystem so you will need to control it through that so it will not natively sync. You can see if someone has made a third party SDK to allow for software syncing depending on your motherboard brand. 

https://www.asus.com/campaign/aura/us/SDK.html

[ivanteng880]

4 minutes ago, W-L said:

It uses the Corsair Link ecosystem so you will need to control it through that so it will not natively sync. You can see if someone has made a third party SDK to allow for software syncing depending on your motherboard brand. 

https://www.asus.com/campaign/aura/us/SDK.html

But will both the fan and the motherboard’s rgb work? Cause I heard that if you have two different rgb controller , everything freaks out.

[W-L]

1 minute ago, ivanteng880 said:

But will both the fan and the motherboard’s rgb work? Cause I heard that if you have two different rgb controller , everything freaks out.

They are completely isolated, and use different software so it won't have any issues. The motherboard has it's RGB control built in and Corsair uses it's own lighting control module and Corsair Link. If there is a compatibility problem or conflict with the software itself for some reason that is a different story all together.