Cpu fan failing on Asus A8N-E

[jammie]

Right i built my computer about a week ago a yesterday i kept on
gettin a startup message sayin ’CPU fan fail or speed to low’ The fan
seemed to be working so i let windows start up and the fan speed was
only 980rpm the cpu temp was only 32c. So i thought ok seems to be ok.
Today thought the fan will not work in the cpu fan socket so i removed
it and placed it int the chasis 2 fan socket it works great with cpu
at around 28c idle although i am not aware of the speed of this fan
and would like to no what the maximum rpm the stock amd 64 3500+ fan
can handle as not to break it + i would also apprietiate if somebody
had an explanation 4 this as i have looked on google and found nothing
to help.

Plz Help
Thanks

Jamie

 

[Mxsmanic]

Right i built my computer about a week ago a yesterday i kept on
gettin a startup message sayin ’CPU fan fail or speed to low’ The fan
seemed to be working so i let windows start up and the fan speed was
only 980rpm the cpu temp was only 32c. So i thought ok seems to be ok.
Today thought the fan will not work in the cpu fan socket so i removed
it and placed it int the chasis 2 fan socket it works great with cpu
at around 28c idle although i am not aware of the speed of this fan
and would like to no what the maximum rpm the stock amd 64 3500+ fan
can handle as not to break it + i would also apprietiate if somebody
had an explanation 4 this as i have looked on google and found nothing
to help.

My Asus P5GDC Deluxe always comes up with a "CPU Fan Fail!" error when
I boot the machine, even though the fan is turning. Apparently the
fan isn't turning fast enough to satisfy the BIOS (it's usually below
1500 rpm, which seems to be the threshold). The BIOS sees the fan
turning, but the rpm just happens to be below the magic number. I
press F1 to continue and all is well. I suppose there's probably a
BIOS update to fix this, but I consider the potential risk of flashing
the BIOS to be much greater than the potential benefit of getting rid
of the error message.

The processor is a Pentium 4 530J at 3.0 GHz. With a case temperature
of 30° it idles at about 41° and maxes out at about 62° under full
load.

 

[dannysdailys]

jammiewrote
Right i built my computer about a week ago a yesterday i kept o

gettin a startup message sayin ’CPU fan fail or speed to low’ Th fa
seemed to be working so i let windows start up and the fan spee wa
only 980rpm the cpu temp was only 32c. So i thought ok seems to b ok
Today thought the fan will not work in the cpu fan socket so remove
it and placed it int the chasis 2 fan socket it works great wit cp
at around 28c idle although i am not aware of the speed of this fa
and would like to no what the maximum rpm the stock amd 64 3500 fa
can handle as not to break it + i would also apprietiate i somebod
had an explanation 4 this as i have looked on google and foun nothin
to help

Plz Hel
Thank

I'm not sure what you're asking. Are you saying you took the fa

off the CPU cooler and put it in as a case fan? Or, are you sayin
you unplugged it from the CPU power plug on the mobo and plugged i
into number 2

Running full power, you won't spin up the fan enough to damage it.

It's rated for full power. My question is, why aren't you getting i
from the mobo in the proper plug? I've never heard of a cpu fa
running 900 RPM's and somehow keeping the cpu cool. Something's no
right, or you're reading something wrong

Jami

--
Posted using the http://www.hardwareforumz.com interface, a author's reques
Articles individually checked for conformance to usenet standard
Topic URL http://www.hardwareforumz.com/Cpu-fan-failing-Asus-A8N-ftopict65197.htm

Visit Topic URL to contact author (reg. req'd). Report abuse

http://www.hardwareforumz.com/eform.php?p=32687

 

[ed jurewicz]

Don't know if this is anyway associated with your problem but asus was
replacing fans on a8n-e. They sent me a replacement for mine and although
there were absolutely no instructions sent with the fan, it was a simple
fix. The main reason attributed to the replacement, however, was attributed
to excessive noise generated by the original.

 

[The Outsider]

My Asus P5GDC Deluxe always comes up with a "CPU Fan Fail!" error when
I boot the machine, even though the fan is turning. Apparently the
fan isn't turning fast enough to satisfy the BIOS (it's usually below
1500 rpm, which seems to be the threshold). The BIOS sees the fan
turning, but the rpm just happens to be below the magic number. I
press F1 to continue and all is well. I suppose there's probably a
BIOS update to fix this, but I consider the potential risk of flashing
the BIOS to be much greater than the potential benefit of getting rid
of the error message.

The processor is a Pentium 4 530J at 3.0 GHz. With a case temperature
of 30° it idles at about 41° and maxes out at about 62° under full
load.

I had this problem on one mb too. I just disabled fan monitoring in
the bios to shut it up.

 

[kony]

Right i built my computer about a week ago a yesterday i kept on
gettin a startup message sayin ’CPU fan fail or speed to low’ The fan
seemed to be working so i let windows start up and the fan speed was
only 980rpm the cpu temp was only 32c. So i thought ok seems to be ok.

As Mxsmanic wrote, a low RPM fan will cause boards to not
detect it, but the important issue is whether parts stay
cool enough, and of course if the fan is still spinning, at
the same RPM (in same situation, since an RPM reduction not
attributed to user or system changes could be a failing
fan).

Today thought the fan will not work in the cpu fan socket

By the above you mean it literally, the fan does not spin at
all, or ??? Unless you had changed something, it would
seem there is a fan or board malfunction.

so i removed
it and placed it int the chasis 2 fan socket it works great with cpu
at around 28c idle although i am not aware of the speed of this fan

It is running at desired RPM now or too fast?

and would like to no what the maximum rpm the stock amd 64 3500+ fan
can handle as not to break it

It is rated for 12V operation. It can't run "too fast" so
long as it is at <=12V, BUT it could be too fast for your
own personal tastes as a faster fan is louder, accumulates
dust faster, and wears out faster. The wear issues is far
less important on a decent quality fan than a low-end sleeve
bearing fan, but in the longer term it can make the fan
louder, faster, as the bearings wear a little. High-pitched
bearing noise is common, not necessarily a sign of a
soon-failed fan, but also one of the more objectionable
noise sources in a system due to the frequency range of the
sound.

... + i would also apprietiate if somebody
had an explanation 4 this as i have looked on google and found nothing
to help.

If you have a multimeter, measure voltage on the CPU fan
header, between the + and -/Gnd pins. RPM pin can be
ignored. If the voltage is too low it will fail to spin up
some fans. If the voltage is not present at all it could be
a fan circuit failure but before making that diagnosis, try
resetting the CMOS to see if that makes a difference.