Little weird things happened last two days... (shutdown hang, and cpu fan failure and resume ?!?)

[Skybuck Flying]

Hello,

Yesterday or so Windows X64 hang while trying to shutdown.

Today there was a short cpu fan failure...

Unfortunately I wasn't paying attention during boot (most of the time I do
pay attention).

So I saw it after a few seconds.... and then it said to press F1 resume...

I looked at the cpu fan to see if everything was ok... and it was spinning.

So everything seemed ok.

So I pressed F1 resume and here I am writing this message and wondering what
happened...

Yesterday I also cleaned the dust filters near the front and near the side
of the case (antec 1200) (I did it very carefully).

My question is:

Does the Scythe Zipang Super CPU Cooler have some special electronics to
detect cpu fan failure and try to re-spindle up ?

Or maybe it's an asus motherboard feature to try and get the cpu fan
spinning again ?

Bye,
Skybuck.

 

[Man-wai Chang ToDie (33.6k)]

Does the Scythe Zipang Super CPU Cooler have some special electronics to

detect cpu fan failure and try to re-spindle up ?
Or maybe it's an asus motherboard feature to try and get the cpu fan
spinning again ?

I would keep the fans running at maximum speed (BIOS or software?).....
Don't bother with energy saving.

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[Paul]

Hello,

Yesterday or so Windows X64 hang while trying to shutdown.

Today there was a short cpu fan failure...

Unfortunately I wasn't paying attention during boot (most of the time I do
pay attention).

So I saw it after a few seconds.... and then it said to press F1 resume...

I looked at the cpu fan to see if everything was ok... and it was spinning.

So everything seemed ok.

So I pressed F1 resume and here I am writing this message and wondering what
happened...

Yesterday I also cleaned the dust filters near the front and near the side
of the case (antec 1200) (I did it very carefully).

My question is:

Does the Scythe Zipang Super CPU Cooler have some special electronics to
detect cpu fan failure and try to re-spindle up ?

Or maybe it's an asus motherboard feature to try and get the cpu fan
spinning again ?

Bye,
Skybuck.

Do you know it was an actual fan failure ? Like it refused to spin initially ?

Your board is A8N32-SLI Deluxe ? That has a three pin CPU fan header. The BIOS
has a QFAN option, which will modify the voltage delivered on +12V. So there
is a possible mechanism where the board would deliver less than 12V on the
fan header (QFAN could deliver between 7V and 12V perhaps). Normally, the voltage
used would be enough to make most fans spin. Occasionally, you'll run into a
CPU fan, that cannot work properly with 7V (in which case, disable QFAN).

On my other computer, fan failure and "press F1" happens, if the CPU
fan spins below 1800 RPM during startup. More modern motherboards
have dropped this threshold (by changing the divider in the hardware
monitor), to a lower value like perhaps 500 RPM. But there is still a
threshold, and still a possibility of the BIOS complaining about
the fan speed.

I looked up your fan, and it has a relatively low speed of 1000 RPM.
So it would not take much, for the speed to drop low enough at
startup, to give a "Press F1" error. F1 means, you're to enter
the BIOS and check the hardware monitor page for problems.

This one has a 140mm 1000RPM full speed fan.
http://www.scythe-usa.com/product/cpu/035/sczp1000_detail.html

SCZP-1000 has a three pin fan header.
http://c1.neweggimages.com/NeweggImage/productimage/35-185-062-06.jpg

I would disable QFAN, and see if it helps.

Hanging on shutdown, could be a number of things, like malware.
I had a problem the other day, where the computer would not
enter S3 Suspend To RAM, and it turned out to be a relatively
benign piece of Javascript.

Paul

 

[david]

I would keep the fans running at maximum speed (BIOS or software?).....
Don't bother with energy saving.

Most people set the fan speed lower to control *noise*. It has nothing
to so with 'energy saving'.