CPU Fan Settings

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@Vegas George wrote:

I have a Dimension 8250 with the 3.06GHz processor.  I've installed a Zalman CPU fan to get rid of the terrible fan noise.  The Zalman works fine, and the noise level is way down now.  However, every third or fourth time I boot up I get a "Previous fan failure" error message.  I've cleared the event log, replugged the fan, flashed the chipset, and done everything else I can think of.  Zalman says that I should either disable CPU fan speed detection in the BIOS settings, or reduce the system monitoring system to 1300 RPM or less.

How do I change the CPU fan detection settings?

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Hi,

Sorry, but there is option in the 8250 BIOS to change any fan settings.

Mis Dos Centavos,
Darrell
Answering here since 1997
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OK (actually, not OK, but I guess I'll just have to live with it), so there is no way to adjust the CPU fan settings in the Dell Dimension BIOS.  That is not a solution to my problem.  Since I can't change the fan settings, can I:

1.  Somehow fool the BIOS into thinking that the noisy old CPU fan is still in there?

2.  Or, tell me the exact specs the BIOS is looking for, and I'll shop for a quiet CPU fan with those specs.

Incidentally, I've tried switching the CPU fan connection with my case fan (12 V, 0.10A), but it didn't help any.  I noticed that the old, noisy CPU fan was 12V, 0.68A.  Could the difference in amps account for the "Previous fan failure" error message?

Thanks,

George

I'm  in the same boat.  Did you ever find a solution?

NO, I never did find a solution to the Fan Failure errer messag problem.  I finally got so sick of having to "F1" every time I booted up that I ripped out my expensive CPU fan and put the original one back in.  Now it boots up OK and sounds like a 747 taking off.  I'm trying to "get used" to it.  Dell should really be ashamed of itself for this screw up on one of its most expensive products.