[SOLVED] fan hub dont show in bios

dimtodim

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Sep 4, 2018
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i plug my fan hub in chassis fan header 4 after i cant see chassis fan 4 header in bios all three others show. after install ai suite 3 and optimize all fans...cpu fan works fine but hub work on full speed and very loud :)
 

Paperdoc

Glorious
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Many utilities like HWMonitor can confuse you because they cannot know and use the labels that the mobo maker uses. To get a clearer picture you should use the BIOS Setup system in your mobo, although that is not so user-friendly. And it cannot show you anything while Windows is running, although you do not appear to need that for this question.

To get into BIOS Setup, see the mobo manual on p. 3-2. As soon as you start up, hold down the "Del" key - do not just tap it. Wait until the screen shows you the start of BIOS Setup - see manual p. 3-3.At bottom middle, click on the QFAN box, OR you can reach the QFAN system by pushing F6 - see p. 3-7. There you will see five fan headers listed. The CPU_OPT fan header is not listed, because it is just a copy of the CPU_FAN header. For each header you must choose it on the left-hand list to see its settings and info.

When you use a fan HUB, two things must be right. First, ALL the fans connected to it must be the newer 4-pin type called PWM fans. (Any older 3-pin fan will only run full speed when connected to a Hub.) And secondly, the mobo host header must be set to use the new PWM Mode so that the Hub receives the PWM signal it requires - without that the Hub cannot control any fan speed. So, select the header (CHA_FAN2, you say) the Hub is plugged into and look at top right. Make sure it is set to PWM, not DC. Next, look at the line of setting options under the graph. It should be set to use the Standard profile which does automatic speed control. You should check each of the fan headers and set all of them this way assuming that all your fans are of the 4-pin type. Use the Esc key to get back to the Main Menu.

For more info, from there use the F7 key to get the Advanced Menu (p. 3-4). There you can click on Monitor at the top menu list to see more details of fans and temperatures. While you are there, write down the speeds for each fan header it shows. When you get back out to Windows, you can compare those to what HWMonitor shoes you, and the will help to understand what labels HWMonitor is using for each real mobo fan header.

When you have made all your changes, hit the F10 key to get to the Exit Menu (p. 3-18), choose Save Changes and Reset to ensure your changes are saved and used. This will reboot your computer. Now you can run HWMonitor and see what it says, and figure out which header is which.

When you use a Hub, the speed of only ONE of its fans is sent back to the mobo header, and all the others on that Hub are ignored. But to achieve that, there MUST be a fan plugged into the only Hub output port that is specially marked for that. Sometimes it is a different colour, or it may be marked for the CPU fan. Do NOT use it for the CPU fan, but make sure one of your case fans IS plugged in there to provide the fan speed signal it can send to the mobo header. Otherwise the mobo will not know that any fan (or Hub) is connected to it.
 

Paperdoc

Glorious
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The mobo your signature shows, the Asus TUF GAMING X570-PLUS, has only three CHA_FANn header, plus three others that are NOT for chassis fans. There is no CHA_FAN4 header. So, if that is your mobo, tell us exactly what is the label on the fan header you have used for the fan Hub. For example, the manual says the AIO_PUMP header does NOT do any speed control becasue it is intended for use with a pump that always should run full speed.
 

dimtodim

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Sep 4, 2018
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The mobo your signature shows, the Asus TUF GAMING X570-PLUS, has only three CHA_FANn header, plus three others that are NOT for chassis fans. There is no CHA_FAN4 header. So, if that is your mobo, tell us exactly what is the label on the fan header you have used for the fan Hub. For example, the manual says the AIO_PUMP header does NOT do any speed control becasue it is intended for use with a pump that always should run full speed.
u r right...sorry i use chassis fan header 2. but CPUID HWMonitor recognize that header like chassis fan header 4...
 

Paperdoc

Glorious
Ambassador
Many utilities like HWMonitor can confuse you because they cannot know and use the labels that the mobo maker uses. To get a clearer picture you should use the BIOS Setup system in your mobo, although that is not so user-friendly. And it cannot show you anything while Windows is running, although you do not appear to need that for this question.

To get into BIOS Setup, see the mobo manual on p. 3-2. As soon as you start up, hold down the "Del" key - do not just tap it. Wait until the screen shows you the start of BIOS Setup - see manual p. 3-3.At bottom middle, click on the QFAN box, OR you can reach the QFAN system by pushing F6 - see p. 3-7. There you will see five fan headers listed. The CPU_OPT fan header is not listed, because it is just a copy of the CPU_FAN header. For each header you must choose it on the left-hand list to see its settings and info.

When you use a fan HUB, two things must be right. First, ALL the fans connected to it must be the newer 4-pin type called PWM fans. (Any older 3-pin fan will only run full speed when connected to a Hub.) And secondly, the mobo host header must be set to use the new PWM Mode so that the Hub receives the PWM signal it requires - without that the Hub cannot control any fan speed. So, select the header (CHA_FAN2, you say) the Hub is plugged into and look at top right. Make sure it is set to PWM, not DC. Next, look at the line of setting options under the graph. It should be set to use the Standard profile which does automatic speed control. You should check each of the fan headers and set all of them this way assuming that all your fans are of the 4-pin type. Use the Esc key to get back to the Main Menu.

For more info, from there use the F7 key to get the Advanced Menu (p. 3-4). There you can click on Monitor at the top menu list to see more details of fans and temperatures. While you are there, write down the speeds for each fan header it shows. When you get back out to Windows, you can compare those to what HWMonitor shoes you, and the will help to understand what labels HWMonitor is using for each real mobo fan header.

When you have made all your changes, hit the F10 key to get to the Exit Menu (p. 3-18), choose Save Changes and Reset to ensure your changes are saved and used. This will reboot your computer. Now you can run HWMonitor and see what it says, and figure out which header is which.

When you use a Hub, the speed of only ONE of its fans is sent back to the mobo header, and all the others on that Hub are ignored. But to achieve that, there MUST be a fan plugged into the only Hub output port that is specially marked for that. Sometimes it is a different colour, or it may be marked for the CPU fan. Do NOT use it for the CPU fan, but make sure one of your case fans IS plugged in there to provide the fan speed signal it can send to the mobo header. Otherwise the mobo will not know that any fan (or Hub) is connected to it.
 

dimtodim

Respectable
Sep 4, 2018
627
60
1,990
13
Many utilities like HWMonitor can confuse you because they cannot know and use the labels that the mobo maker uses. To get a clearer picture you should use the BIOS Setup system in your mobo, although that is not so user-friendly. And it cannot show you anything while Windows is running, although you do not appear to need that for this question.

To get into BIOS Setup, see the mobo manual on p. 3-2. As soon as you start up, hold down the "Del" key - do not just tap it. Wait until the screen shows you the start of BIOS Setup - see manual p. 3-3.At bottom middle, click on the QFAN box, OR you can reach the QFAN system by pushing F6 - see p. 3-7. There you will see five fan headers listed. The CPU_OPT fan header is not listed, because it is just a copy of the CPU_FAN header. For each header you must choose it on the left-hand list to see its settings and info.

When you use a fan HUB, two things must be right. First, ALL the fans connected to it must be the newer 4-pin type called PWM fans. (Any older 3-pin fan will only run full speed when connected to a Hub.) And secondly, the mobo host header must be set to use the new PWM Mode so that the Hub receives the PWM signal it requires - without that the Hub cannot control any fan speed. So, select the header (CHA_FAN2, you say) the Hub is plugged into and look at top right. Make sure it is set to PWM, not DC. Next, look at the line of setting options under the graph. It should be set to use the Standard profile which does automatic speed control. You should check each of the fan headers and set all of them this way assuming that all your fans are of the 4-pin type. Use the Esc key to get back to the Main Menu.

For more info, from there use the F7 key to get the Advanced Menu (p. 3-4). There you can click on Monitor at the top menu list to see more details of fans and temperatures. While you are there, write down the speeds for each fan header it shows. When you get back out to Windows, you can compare those to what HWMonitor shoes you, and the will help to understand what labels HWMonitor is using for each real mobo fan header.

When you have made all your changes, hit the F10 key to get to the Exit Menu (p. 3-18), choose Save Changes and Reset to ensure your changes are saved and used. This will reboot your computer. Now you can run HWMonitor and see what it says, and figure out which header is which.

When you use a Hub, the speed of only ONE of its fans is sent back to the mobo header, and all the others on that Hub are ignored. But to achieve that, there MUST be a fan plugged into the only Hub output port that is specially marked for that. Sometimes it is a different colour, or it may be marked for the CPU fan. Do NOT use it for the CPU fan, but make sure one of your case fans IS plugged in there to provide the fan speed signal it can send to the mobo header. Otherwise the mobo will not know that any fan (or Hub) is connected to it.
thanks for answer. yesterday i install al suite 3 and configure all cpu fan and hub. i can see in program various speed of fanhub and that is good...i dont want use fanhub all time on 100% speed.
 

dimtodim

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Sep 4, 2018
627
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I'm glad you got it working. AI Suite 3 is a good utility to use, and easier and more accurate than HWMonitor might be for your situation. Thanks for Best Solution.
ok i have one more question 3 fans are 4 pin and 2 are with 3 pin...in that case 3pin fans work on 100% speed or wnat?
 

Paperdoc

Glorious
Ambassador
Yes. If you plug a 3-pin fan into a 4-pin mobo header that is actually using the new PWM Mode (or into a 4-pin fan Hub), that 3-pin fan can only run full speed all the time. There are two ways you can change that. Each depends on the fact that the method of control of 3-pin fans is different, so they need a different kind of connection.

The simplest option is IF you have one of your CHA_FAN headers not being used right now. Then all you need to get is a simple Splitter, something like this

https://www.amazon.com/JBtek-Black-Sleeved-Splitter-Converter/dp/B01EF9OI0O/ref=sr_1_3?dchild=1&keywords=fan+splitter&qid=1600449030&sr=8-3

That's a two-pack of 4-pin Splitters, but you can use them for 3-pin fans. Use one of them to connect both of the 3-pin fans to the unused mobo header, and leave the 4-pin fans on the Hub you have already. Then go into BIOS Setup or AI Suite 3 and go to configuration details for the header with the Splitter and 3-pin fans. Set it to use the older DC Mode, rather than PWM, and remember to go through the Exit Menu to save your new setting. This will provide the correct signal type to those two 3-pin fans and control their speed properly.

If you cannot use another header and must use a single Hub for all five fans, then you need a different Hub. Get the new Phanteks Universal Fan Controller

https://www.newegg.com/phanteks-ph-pwhub-02-black/p/N82E16811984030?Description=phanteks universal pwm fan hub&cm_re=phanteks_universal pwm fan hub-_-11-984-030-_-Product

You will not need the extra manual control box it comes with it. Just follow the instructions to connect it to the same mobo header you are using now with your old Hub. Note that it has two different groups of output ports - some for 3-pin, and some for 4-pin. Just plug your fans into the correct port type. This Hub has a special feature. In additiion to providing PWM control for its 4-pin fans it converts the PWM control signal system for its 3-pin fan ports so they can control the 3-pin fans properly, too.
 

dimtodim

Respectable
Sep 4, 2018
627
60
1,990
13
Yes. If you plug a 3-pin fan into a 4-pin mobo header that is actually using the new PWM Mode (or into a 4-pin fan Hub), that 3-pin fan can only run full speed all the time. There are two ways you can change that. Each depends on the fact that the method of control of 3-pin fans is different, so they need a different kind of connection.

The simplest option is IF you have one of your CHA_FAN headers not being used right now. Then all you need to get is a simple Splitter, something like this

https://www.amazon.com/JBtek-Black-Sleeved-Splitter-Converter/dp/B01EF9OI0O/ref=sr_1_3?dchild=1&keywords=fan+splitter&qid=1600449030&sr=8-3

That's a two-pack of 4-pin Splitters, but you can use them for 3-pin fans. Use one of them to connect both of the 3-pin fans to the unused mobo header, and leave the 4-pin fans on the Hub you have already. Then go into BIOS Setup or AI Suite 3 and go to configuration details for the header with the Splitter and 3-pin fans. Set it to use the older DC Mode, rather than PWM, and remember to go through the Exit Menu to save your new setting. This will provide the correct signal type to those two 3-pin fans and control their speed properly.

If you cannot use another header and must use a single Hub for all five fans, then you need a different Hub. Get the new Phanteks Universal Fan Controller

https://www.newegg.com/phanteks-ph-pwhub-02-black/p/N82E16811984030?Description=phanteks universal pwm fan hub&cm_re=phanteks_universal pwm fan hub--11-984-030--Product

You will not need the extra manual control box it comes with it. Just follow the instructions to connect it to the same mobo header you are using now with your old Hub. Note that it has two different groups of output ports - some for 3-pin, and some for 4-pin. Just plug your fans into the correct port type. This Hub has a special feature. In additiion to providing PWM control for its 4-pin fans it converts the PWM control signal system for its 3-pin fan ports so they can control the 3-pin fans properly, too.
ok thanks...i can see now...i have splitters with 4 pin fans and i can use for 3 pin fans...bot now i am happy with my temp cpu, mobo and gpu, fans are cheep and can be easy replaced
 

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