CPU Fan Fail Message with XP-120 using Nexus 120mm real si..

[Guest]

Archived from groups: alt.comp.hardware.pc-homebuilt (More info?)

Hi,

I have a asus p5ad2-e board with an intel p4 3.2 Ghz being cooled by a
thermalright xp-120 unit with a nexus 120mm real silent case fan
[D12SL-12]. Since installing this coolling solution my machine is much
more quiet, however, on start up I get a bios error stating cpu fan
fail. Once I hit F1 to bypass the error, asus probe 2 shows the cpu fan
going at ~1028 with temps of CPU around 28 C / 82 F. I have the nexus
fan connected via the cpu fan [3 pin connector] on the motherboard. the
fan is mounted to be drawing air away from the motherboard.

Any suggestions on how this bios error should be remedied? Have I
connected something incorrectly?

Thanks,

George

ghadley_00@yahoo.com

 

[Guest]

Archived from groups: alt.comp.hardware.pc-homebuilt (More info?)

it's most likely just because the fan speed is so low. you could try
lowering the setting for the warning or just disable it.

<ghadley_00@yahoo.com> wrote in message
news:1114108087.082684.273610@g14g2000cwa.googlegroups.com...
>
> Hi,
>
> I have a asus p5ad2-e board with an intel p4 3.2 Ghz being cooled by a
> thermalright xp-120 unit with a nexus 120mm real silent case fan
> [D12SL-12]. Since installing this coolling solution my machine is much
> more quiet, however, on start up I get a bios error stating cpu fan
> fail. Once I hit F1 to bypass the error, asus probe 2 shows the cpu fan
> going at ~1028 with temps of CPU around 28 C / 82 F. I have the nexus
> fan connected via the cpu fan [3 pin connector] on the motherboard. the
> fan is mounted to be drawing air away from the motherboard.
>
> Any suggestions on how this bios error should be remedied? Have I
> connected something incorrectly?
>
> Thanks,
>
> George
>
> ghadley_00@yahoo.com
>

 

[overlord]

Archived from groups: alt.comp.hardware.pc-homebuilt (More info?)

Sounds like the fan is cooling just fine. Since it's a larger slower
fan, which puts out the volume of a smaller faster noisier fan, the
MB doesn't know about it and is pissed that the fan speed is so slow.
If you can lower the threshold of the fan speed warning in BIOS low
enough (IF), then you can avoid the error message. If the setting
won't go low enough, you can disable it altogether. It's an outside
possibility that you can connect the cpu fan to a case fan MB connection
but this Really pisses off some BIOS and it may not post/boot at all.
Additionally, the MB connection is varying the voltage to your cpu fan.
Presumably when you cold boot, the CPU is cool and the bios is sending
little voltage thru the MB connection to the fan thus aggravating the
problem because the lower voltage makes the fan spin even more slowly.
I don't know your MB options that well but some Asus boards have a...
delay type option. The fan voltage sent by the MB lags what the BIOS
actually wants to send based on the cpu temp. Putting this "lag" at
more of a 1:1 ratio may cause the bios/mb to send more voltage to the
fan, thus more rpms, at boot time. Possibly that would prevent the
error msg at bootup.




On 21 Apr 2005 11:28:07 -0700, ghadley_00@yahoo.com wrote:

>
>Hi,
>
>I have a asus p5ad2-e board with an intel p4 3.2 Ghz being cooled by a
>thermalright xp-120 unit with a nexus 120mm real silent case fan
>[D12SL-12]. Since installing this coolling solution my machine is much
>more quiet, however, on start up I get a bios error stating cpu fan
>fail. Once I hit F1 to bypass the error, asus probe 2 shows the cpu fan
>going at ~1028 with temps of CPU around 28 C / 82 F. I have the nexus
>fan connected via the cpu fan [3 pin connector] on the motherboard. the
>fan is mounted to be drawing air away from the motherboard.
>
>Any suggestions on how this bios error should be remedied? Have I
>connected something incorrectly?
>
>Thanks,
>
>George
>
>ghadley_00@yahoo.com
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