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‎02-27-2020 06:23 AM

HP Recommended
Product: Prodesk 400 G2

Hello Forum,

 

How to connect an external FAN to Mainboard of a Prodesk 400 G2 PC, which Pin to use,

should i use a pwm FAN or not? I do not find any Mainboard Layout or Description in Handbook.

 

Thx for help.

3 REPLIES 3

‎02-27-2020 09:46 AM

HP Recommended

@Bernd67 

What do you mean by External fan? Are you asking about attaching a fan to the outside of the case?

 

According to the maintenance guide, your motherboard only has two fan headers, one for the CPU, the other for the existing chassis fan.  There are no more headers.

 

You can see the motherboard on page 70 of the linked manual:  http://h10032.www1.hp.com/ctg/Manual/c04529143

 

You would not be able to connect a third fan to the motherboard other than to power it, as there is no place to connect the three lead fan wire other than using an adapter to connect it only to a power cable from the PSU, and that would mean that the fan would run all the time as the system then would have no control lead connected for the fan.



I am a volunteer and I do not work for, nor represent, HP
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‎02-27-2020 10:15 AM

HP Recommended

Thx for the manual, thats it!,

i had another manual before-

found out the solution now.

chfan2 ist the brown connector, which i am searching for-

i never thought of a third fan, i wanted to know for the chassis fan where to

put cable in...

do i need a hp fan or can i add any other, do i need a pwn monitored one or a normal old one?

thx for help! nice!

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‎02-27-2020 10:45 AM

HP Recommended

@Bernd67 

 

OK, so you already have a chassis fan but it's not connected?

 

Or, you are looking into buying a chassis fan?

 

Any fan, of the right size, that comes with a three-wire connector plug will work.



I am a volunteer and I do not work for, nor represent, HP
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