CPU Fan Error beeps?

[Harry Krause]

When I start my new P5WD2 up from the cold, after it has been sitting
unused overnight. I get a couple beeps and a screen error message that
says CPU Fan Error, Press F1 to Continue. So I do and everything seems
ok. I've had the case covers off, and the CPU fan is turning, even when
the message comes up.

This message does not occur when the PC is rebooted.

Running a P4 3.4, not overclocking.

Any suggestions?

Thanks!!

 

[Paul]

When I start my new P5WD2 up from the cold, after it has been sitting
unused overnight. I get a couple beeps and a screen error message that
says CPU Fan Error, Press F1 to Continue. So I do and everything seems
ok. I've had the case covers off, and the CPU fan is turning, even when
the message comes up.

This message does not occur when the PC is rebooted.

Running a P4 3.4, not overclocking.

Any suggestions?

Thanks!!

When a computer first starts, everything is cold. Temperature
controlled fans run at their minimum speed. On my old P4B
system, the power supply fan would drop below 1800RPM for the
first 30 seconds, and I would get the error you mention above.
Once the computer warms up, I would not get the error, as
the fan speed would be higher. It could be your CPU fan is
doing something similar.

To avoid the error, you could turn off monitoring of the CPU
fan in the BIOS, or set "Halt on no errors" as your halt option.
Or keep pressing F1 :-(

Paul

 

[Harry Krause]

When a computer first starts, everything is cold. Temperature
controlled fans run at their minimum speed. On my old P4B
system, the power supply fan would drop below 1800RPM for the
first 30 seconds, and I would get the error you mention above.
Once the computer warms up, I would not get the error, as
the fan speed would be higher. It could be your CPU fan is
doing something similar.

To avoid the error, you could turn off monitoring of the CPU
fan in the BIOS, or set "Halt on no errors" as your halt option.
Or keep pressing F1 :-(

Paul

Yeah...I suppose. Thanks.

 

[Butch]

cut cut
the fan speed would be higher. It could be your CPU fan is
doing something similar.

To avoid the error, you could turn off monitoring of the CPU
fan in the BIOS, or set "Halt on no errors" as your halt option.
Or keep pressing F1 :-(

Paul

I have a simular problem.
Turn off the monitoring is no option if you want to use the automatic
Fan speed control (to silence the computer).
Halt on errors is no option because you will also continue if some
drastic problem occurs. And you do not want to do this normally.
So Keep pressing the F1 is the sollution unless the ASUS/BIOS
engineers wake up and make the treshhold RPM Bios selectable.

Butch

 

[Harry Krause]

I have a simular problem.
Turn off the monitoring is no option if you want to use the automatic
Fan speed control (to silence the computer).
Halt on errors is no option because you will also continue if some
drastic problem occurs. And you do not want to do this normally.
So Keep pressing the F1 is the sollution unless the ASUS/BIOS
engineers wake up and make the treshhold RPM Bios selectable.

Butch

So can we assume this is a fairly common problem, and a bios fix is needed?

 

[milleron]

So can we assume this is a fairly common problem, and a bios fix is needed?

It would be easy for them to fix it in BIOS. On the Asus AMD boards,
you can leave the monitoring enabled but set different thresholds to
avoid getting the halt error. Mine's set on 800 RPM, so if BIOS
detects the fan at a speed greater than that, POST continues. I
assume that they could insert such a feature on Intel-based boards,
too.

Ron

 

[Butch]

It would be easy for them to fix it in BIOS. On the Asus AMD boards,
you can leave the monitoring enabled but set different thresholds to
avoid getting the halt error. Mine's set on 800 RPM, so if BIOS
detects the fan at a speed greater than that, POST continues. I
assume that they could insert such a feature on Intel-based boards,
too.

Ron

Hi,

I informed ASUS about the problem and got the following response:
Dear Customer,
Thank you for contacting ASUS Customer Service.
My name is Penny and I would be assisting you today.

Due to the BIOS limitation, if the fan speed is below you will get a
fan error when boot up. When you disable the Q-Fan function, you will
not get the error.Our R&D engineers are researching the solution. And
now we don't have another solution to resolve it. Sorry for any
inconvenience that caused to you.



I think the engineers are still researching this compicated problem.
(Note the fan i am using is the original Intel fan that came with the
CPU).
Hope they come with a fix soon. I hated to press F1 everytime when the
computer starts (i have to stay around).

Butch

 

[milleron]

Hi,

I informed ASUS about the problem and got the following response:
Dear Customer,
Thank you for contacting ASUS Customer Service.
My name is Penny and I would be assisting you today.

Due to the BIOS limitation, if the fan speed is below you will get a
fan error when boot up. When you disable the Q-Fan function, you will
not get the error.Our R&D engineers are researching the solution. And
now we don't have another solution to resolve it. Sorry for any
inconvenience that caused to you.



I think the engineers are still researching this compicated problem.
(Note the fan i am using is the original Intel fan that came with the
CPU).
Hope they come with a fix soon. I hated to press F1 everytime when the
computer starts (i have to stay around).

Butch

Or else this is boilerplate reply that, read between the line, states
"We don't really give a rat's a$$ about your problem, but we're hoping
that this poorly translated BS will keep you out of our In-Box for a
while."

Do you, in fact, have Q-Fan enabled?

I hope they come up with a BIOS fix for you.
Ron

 

[Paul]

Or else this is boilerplate reply that, read between the line, states
"We don't really give a rat's a$$ about your problem, but we're hoping
that this poorly translated BS will keep you out of our In-Box for a
while."

Do you, in fact, have Q-Fan enabled?

I hope they come up with a BIOS fix for you.
Ron

Have a look at PDF page 37 (Table 5-2). By changing the divisor
setting of the time base for the fan pulse period measurement
circuit, you can measure much slower RPM rates than the one
the BIOS is using right now. The divisor doesn't have to stay
at default 2 or perhaps 4, as it currently does.

http://www.winbond-usa.com/products/winbond_products/pdfs/PCIC/627hf.pdf

If we could set the divisor for each monitored fan channel, via
a BIOS setting, this would be easy to fix.

As for fixing the BIOS, there are many fingers in the pie. AMI/Award
write some of the code, and I'm sure not all the code comes with
source. Some processor specific code could come from AMD or Intel.
Chipset code might come from the chipset maker. RAID or LAN chip
BIOS modules from their respective makers. Asus may write custom
portions (Q-fan or any of their other features), but the time to
get repairs, when the BIOS module is "owned" by another company,
is variable. Still, in this case, the "slow fan" issue has been
around forever, and I tend to agree with the "We don't really
give a rat's a$$" as being the root of the problem. The BIOS
designers should have a set of "policies" that the BIOS are
designed to, and the fact that each board has a different
threshold means this is not a priority.

Paul

 

[Dragoncarer]

Have a look at PDF page 37 (Table 5-2). By changing the divisor
setting of the time base for the fan pulse period measurement
circuit, you can measure much slower RPM rates than the one
the BIOS is using right now. The divisor doesn't have to stay
at default 2 or perhaps 4, as it currently does.

http://www.winbond-usa.com/products/winbond_products/pdfs/PCIC/627hf.pdf

If we could set the divisor for each monitored fan channel, via
a BIOS setting, this would be easy to fix.

As for fixing the BIOS, there are many fingers in the pie. AMI/Award
write some of the code, and I'm sure not all the code comes with
source. Some processor specific code could come from AMD or Intel.
Chipset code might come from the chipset maker. RAID or LAN chip
BIOS modules from their respective makers. Asus may write custom
portions (Q-fan or any of their other features), but the time to
get repairs, when the BIOS module is "owned" by another company,
is variable. Still, in this case, the "slow fan" issue has been
around forever, and I tend to agree with the "We don't really
give a rat's a$$" as being the root of the problem. The BIOS
designers should have a set of "policies" that the BIOS are
designed to, and the fact that each board has a different
threshold means this is not a priority.

Paul

Here's my (late) two cents. I've gotten errors a couple of times, so I just
set the CPU fan threshold in BIOS under the Q-Fan options to 800rpm.

When the machine first boots up, CPU fan often starts off around
950+rpm...but as it gets going, and after it's been in windows for, say,
10-15 minutes, it's sped up to anything above 1100rpm. Right now it's
1460rpm.

 

[milleron]

Here's my (late) two cents. I've gotten errors a couple of times, so I just
set the CPU fan threshold in BIOS under the Q-Fan options to 800rpm.

When the machine first boots up, CPU fan often starts off around
950+rpm...but as it gets going, and after it's been in windows for, say,
10-15 minutes, it's sped up to anything above 1100rpm. Right now it's
1460rpm.

Well, that's what most of us do, but the OP has a board on which the
BIOS doesn't allow setting a threshold level.

Ron

 

[Butch]

Or else this is boilerplate reply that, read between the line, states
"We don't really give a rat's a$$ about your problem, but we're hoping
that this poorly translated BS will keep you out of our In-Box for a
while."

Do you, in fact, have Q-Fan enabled?

I hope they come up with a BIOS fix for you.
Ron

Yes i have Q-fan enabled.
(without Q-fan i have no problem but a lot extra noice!)

Butch