Winbond temp sensors on Albatron board

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Archived from groups: alt.comp.periphs.mainboard (More info?)

i have an Albatron PX845PEV Pro with a P4 2.4GHz overclocked a little to
2.5GHz (2.6+ is a bit unstable). i use Motherboard Monitor 5.3.7.0 to check
the temps. it reports that CPU is usually between 20-25C and that's okay,
but it also reports that "Case" is around 45C! i find it hard to believe
the case temp is twice as high as the CPU temp (around 115F)--it has good
ventilation and the exhausted air is not too hot.

but the "Case" temp climbs when i run graphics-intensive apps (e.g. games)
and sometimes with Photoshop. when it gets over 46C the system locks up.
what is this "Case" sensor *really* measuring, and how can i cool it? note
that when the system locks up, the screen goes all weird but sometimes
background jobs (like downloading) will continue to run.

 

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Archived from groups: alt.comp.periphs.mainboard (More info?)

On Tue, 19 Apr 2005 23:11:42 +0000, Dejah Thoris wrote:

> i have an Albatron PX845PEV Pro with a P4 2.4GHz overclocked a little to
> 2.5GHz (2.6+ is a bit unstable). i use Motherboard Monitor 5.3.7.0 to check
> the temps. it reports that CPU is usually between 20-25C and that's okay,
> but it also reports that "Case" is around 45C! i find it hard to believe
> the case temp is twice as high as the CPU temp (around 115F)--it has good
> ventilation and the exhausted air is not too hot.
>
You don't have MBM configured properly. At a minimum you have the MB and
CPU sensors reversed. And that's why you find it hard to believe.🙂

> but the "Case" temp climbs when i run graphics-intensive apps (e.g.
> games) and sometimes with Photoshop. when it gets over 46C the system
> locks up. what is this "Case" sensor *really* measuring, and how can i
> cool it? note that when the system locks up, the screen goes all weird
> but sometimes background jobs (like downloading) will continue to run.

What you have defined as the case senosr is more than likely measuring the
cpu temp. And the reason your screen goes bad is more than likely either
because the AGP bus is overclcoked or you have bad cooling on the video
cards processor. to determine which reading is really the cpu temp, umplug
the cpu fan and see which temp starts climbing. That will be the cpu temp
sensor. Then fix it.

--
Abit KT7-Raid (KT133) Tbred B core CPU @2400MHz (24x100FSB)
My server http://wesnewell.no-ip.com/cpu.php
Verizon server http://mysite.verizon.net/res0exft/cpu.htm

 

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Archived from groups: alt.comp.periphs.mainboard (More info?)

"Wes Newell" <w.newell@TAKEOUTverizon.net> wrote
> On Tue, 19 Apr 2005 23:11:42 +0000, Dejah Thoris wrote:
>> i have an Albatron PX845PEV Pro with a P4 2.4GHz ... Motherboard Monitor
>> 5.3.7.0 ... reports that CPU is usually between 20-25C and that's okay,
>> but it also reports that "Case" is around 45C!
>
> You don't have MBM configured properly. At a minimum you have the MB and
> CPU sensors reversed. And that's why you find it hard to believe.🙂 ...
> What you have defined as the case senosr is more than likely measuring the
> cpu temp.

thanks, you're absolutely right. MBM claims to support this board but the
sensors appear to be mis-assigned. the Winbond W83627HF has 3 sensors which
the BIOS reports as "System temp" around 40-45C and "CPU temp" usually
35-40C and nothing for the third sensor. i did your fan trick and the temp
reported by the BIOS as "CPU" did seem to increase more than the one called
"System" but the two reported temps seem to rise and fall in tandem, usually
with 0-5 degrees difference.

so i still don't really know what *exactly* is being measured by each
sensor. maybe the 3rd sensor as reported by MBM is case temp since it's
usually near room ambient temp. does anyone know? or is this something i
have to ask Albatron?

> And the reason your screen goes bad is more than likely either
> because the AGP bus is overclcoked or you have bad cooling on the video
> cards processor.

yeah, this seems to be an unfortunate coincidence. the AGP bus is not
overclocked but i think the fan is sticking on the video card. when i was
playing with the CPU fan i noticed that the GPU fan was not always starting
when i rebooted. maybe it's temperature controlled (i doubt it, an old
nVidia TI4600 card) but if i gave it a nudge it started spinning.

 

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Archived from groups: alt.comp.periphs.mainboard (More info?)

On Wed, 20 Apr 2005 23:43:54 +0000, Dejah Thoris wrote:

> thanks, you're absolutely right. MBM claims to support this board but the
> sensors appear to be mis-assigned. the Winbond W83627HF has 3 sensors which
> the BIOS reports as "System temp" around 40-45C and "CPU temp" usually
> 35-40C and nothing for the third sensor. i did your fan trick and the temp
> reported by the BIOS as "CPU" did seem to increase more than the one called
> "System" but the two reported temps seem to rise and fall in tandem, usually
> with 0-5 degrees difference.
>
I suppose it's posssible that the system temp sensor is next to a power
coil or something else that gets hot on the MB, or come to think of it I
did have one board where the system temp was actually the nortbridge temp.

> so i still don't really know what *exactly* is being measured by each
> sensor. maybe the 3rd sensor as reported by MBM is case temp since it's
> usually near room ambient temp. does anyone know? or is this something
> i have to ask Albatron?

You can try asking, but don't expect a correct answer. I had to figure it
out myself. the board manufacturere was no help at all.
>
> yeah, this seems to be an unfortunate coincidence. the AGP bus is not
> overclocked but i think the fan is sticking on the video card. when i
> was playing with the CPU fan i noticed that the GPU fan was not always
> starting when i rebooted. maybe it's temperature controlled (i doubt
> it, an old nVidia TI4600 card) but if i gave it a nudge it started
> spinning.

You need to remove the fan and oil the bearings/bushiing. that should fix
that. Use thin oil like sewing machine or fishing reel oil.

--
Abit KT7-Raid (KT133) Tbred B core CPU @2400MHz (24x100FSB)
My server http://wesnewell.no-ip.com/cpu.php
Verizon server http://mysite.verizon.net/res0exft/cpu.htm