Connecting 2 12v fans

[DPG]

Have you confirmed there is a steady 12VDC at the connector?

 

[L1ph70u]

It should, yes.
unfortunately I have nothing to check it :/
All I could say is that before I installed the second fan, the first one ran at 100% speed.
When I wired the second fan parallel, they where running at the same speed, maybe 70 %.

 

[DPG]

You need to check that is is definitely a source of 12VDC.

 

[L1ph70u]

Ok so I found out that there is enough space.
It delivers 10 amps ( the power supply) and it needs 35-90Watt so at highest 7-8 amps.

But I dont understand why the fans are spinning the same speed , but just at 70-80% of the full speed. If I connect 1 fan , it runs at 100% and sounds like a jet. when I connect Both wired parallel, they are spinning at 70-80%

 

[DPG]

Right, but is the connector you are connecting the fans to definitely connected to the 12V supply rail?

 

[L1ph70u]

Just in case there are not 12v, what I dont think, what does that mean for the fans?

 

[Marvo]

.............It delivers 10 amps ( the power supply) and it needs 35-90Watt so at highest 7-8 amps..............

What size wires have you used to connect them? 7-8 Amps needs a relatively thick wire, if the wires are too thin then it will mean the voltage across the actual fans will be reduced.

 

[DPG]

His fans don't need that much current.

 

[DPG]

Just in case there are not 12v, what I dont think, what does that mean for the fans?

If it isn't a 12VDC feed at that connector then it means the fans won't run correctly and you may also cause damage to the console.

 

[L1ph70u]

I meant the Conse itself needs 7-8 amps when playing high graphic games.
the fans have 0.22 and 0.29 amps
The supply gives 10 amps.
I just want to figure out why 1 fan connected to the plug will run at 100% of speed and both parallel run at the same speed at 70-80%