Re: Rear fan spins, front does not?

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Article #3446

#3446

From: Karl Dieter
Date: Sat, 06 Oct 2001 04:08

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> Hi Karl.

Hallo.

>
> If the system runs cool enough, enjoy it, there's no need to have that
> front fan going, especially if it's sensor is correct, that the lower
> case temps are fine.  Then again, the reason your front fan isn't
> turning, could be that it's a 120mm... is that the size the
> motherboard was engineered to control?  Possibly an 80mm would be
> turning?

The fan appears OK, even at 120mm.  I think it's just that the sensor never
gets hot enough to start the fan.  If I lightly blow a hair-dryer on the
sensor, the fan starts up as supposed.

>
> If you really want to use those panaflows, you could try them with the
> ground connected to the PSU 5V (red) for a potential of 7V.  The
> easiest way would be to move the fan's ground contact in the fan
> connector, so it mates with the PSU connector 5V line.  Whether they
> will start at 7V may depend on the specific model.

I'm not over willing to use the Panaflos, I'd just like a steady airflow
through-out the case.

>
> How loaded is this system?  It's very uncommon for a PC to need two
> 120mm fans.

P4 1.7, 512MB RDRAM, 100GBs Ultra160 SCSI, 3Com 990SVR ARM NIC, Creative
AUDIGY, Adaptec FireConnect.  Fairly loaded, not excessive though.

Danke.

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From: "Karl Dieter" <nospam@mydomain.com>
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Subject: Re: Rear fan spins, front does not?
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