How low can the Nexus 92 and 120mm go and start reliably?

JVM · Post by **JVM** » Tue Feb 21, 2006 9:40 pm

Anyone know how low these fans can go and start reliably?

I saw the Nexus 92mm is rated at something like 10-13 volts in operation and wonder if that precludes going as low as 6-7 volts?

Since I am planning to use the Nexus 92mm fan as an intake for the P150, I wonder if I can safely go as low as 6-7 volts?

I also welcome any advice using rpm speed instead of volts.

Steve_Y · Post by **Steve_Y** » Wed Feb 22, 2006 6:10 am

I've used several 92mm Nexus fans and they all start consistently at 5v, although you may find their noise level acceptable at a significantly higher voltage. The 80mm and 120mm fans seem to need a little more voltage to get started, but running them at 6-7v isn't a problem.

Post by **Ralf Hutter** » Wed Feb 22, 2006 7:00 am

I'm running a 92mm Nexus as the front fan on my P150. It's on a Fanmate at it's lowest (5.5V) setting and it's started every day for the past 5+ months.

Before I built this system I tested 3 92mm Nexii on the bench for a few days and they all started repeatedly at 5V. YMMV with fans though, but if you run it at 5.5-6V for insurance, you still won't be able to hear it. They are very quiet.

Edit:

I've used about 7-8 120mm Nexii, some of which start fine at 5V, others need a touch more. They all start 100% reliably with the 5.5V provided by a fanmate.

JVM · Post by **JVM** » Wed Feb 22, 2006 7:27 am

Ralf Hutter wrote:I'm running a 92mm Nexus as the front fan on my P150. It's on a Fanmate at it's lowest (5.5V) setting and it's started every day for the past 5+ months.

Before I built this system I tested 3 92mm Nexii on the bench for a few days and they all started repeatedly at 5V. YMMV with fans though, but if you run it at 5.5-6V for insurance, you still won't be able to hear it. They are very quiet.

Edit:

I've used about 7-8 120mm Nexii, some of which start fine at 5V, others need a touch more. They all start 100% reliably with the 5.5V provided by a fanmate.

Well, that covers both questions

Thanks!