CPU Fan Error

I just received my passive ThermalTake radiator yesterday that I installed on my Asus P5Q with my Intel Core 2 Duo 8400

But the problem is that fan does not startup and every boot

CPU Fan Error
Press F1 to resume

Question: How to fix this issue?

In the bios, in hardware monitor, look for:

"CPU fan speed"

You can control CPU fan, and disable one or the other or both!

do not leave 100% passive, it heats the inside, unless you have a good ventilation of the cabinet, but will in any way loudest connect a 5V fan ...

Thank you for the answer

For ventilation I have a Noctua 120mm 800tr and my power supply which also has a 120mm fan

idle temperature is 30°

1 final attention is dependent on what you do with (games) because it can climb fast!