Albatron PX865PE Pro II CPU temperature readings

[Eddy]

My Albatron PX865PE Pro II mainboard with Pentium 4 2.4C with retail HSF
installed shows CPU temperatures of 48 degrees Celcius when idle and 67
degrees C max after running cpuburn for quite some time. The lowest I've
seen is 47 within a minute after turning on the totally cooled down PC. When
I turn off the PC and measure the temperature at the top of the heatsink, it
does not get above about 28 degrees C (it takes some time to get there).

Are there others with this mainboard who have the same readings, or who do
get normal readings?

Eddy

 

[DaveW]

Sounds like your case is not getting enough internal cooling; i.e. needs
more fans.

 

[Spajky]

My Albatron PX865PE Pro II mainboard with Pentium 4 2.4C with retail HSF
installed shows CPU temperatures of 48 degrees Celcius when idle and 67
degrees C max after running cpuburn for quite some time.

Are there others with this mainboard who have the same readings, or who do
get normal readings?

those temps looks like are taken from ondie Cpu diode & are normal
readings !

-- Regards, SPAJKY
& visit site - http://www.spajky.vze.com
Celly-III OC-ed,"Tualatin on BX-Slot1-MoBo!"
E-mail AntiSpam: remove ##

 

[Eddy]

Sounds like your case is not getting enough internal cooling; i.e. needs
more fans.

My case has 2 intake and one exhaust fan plus the one in the power supply.
They are low speed though 80mm fans though. The temperature of the air blown
out by the case fan is no more than 30 degrees Celcius when the CPU has been
on full load for a long time.

I just tested again after the PC had been switched off for the night. I went
into the hardware monitoring section of the BIOS immediately (within about
30 seconds after turning on the PC) and it showed 43 degrees C, while the
ambient temperature was about 20 C. I think that the readout shown by the
BIOS is incorrect, but haven't gotten any response from Albatron.

Eddy.

 

[Eddy]

those temps looks like are taken from ondie Cpu diode & are normal
readings !

They are readings from the on die diode. But they seem high to me, as
another machine with a P4 1.8A with retail HSF I tested shows temperatures
of 33 degrees C when idle upto 54 degrees C after running cpuburn for about
half an hour. When I overclock that machine to 2.4 GHz it is 33 upto 60
degrees. But the only fan in that case is a slow 12 cm fan in the power
supply.

When I measure the temperature on the heatsink after turning off the
machine, it slowly rises to 40 degrees C, after the hardware monitoring
program showed 67 degrees C. It seems like a big difference to me. When I
look in SpeedFan, it has configuration options for the hardware monitoring
chip (WinBondW83627HF). It has two choices for the CPU diode: "PII diode"
and "PII 2N3904". The first one is default. When I select the 2N3904, it
shows about 20 degrees (same as ambient) after it has cooled down for a
night. The highest value it shows using that setting is 44 degrees, which is
only 4 degrees higher than what I measure on the heatsink after I turn off
the PC. Those readings are probably too low, but I think the other ones are
too high.

Also I've seen someone mention that his 2.8C with stock HSF has a
temperature of 24C - 41C. So my value do seem very high.

Eddy

 

[Spajky]

They are readings from the on die diode. But they seem high to me, as
another machine with a P4 1.8A with retail HSF I tested shows temperatures
of 33 degrees C when idle upto 54 degrees C after running cpuburn for about
half an hour. When I overclock that machine to 2.4 GHz it is 33 upto 60
degrees. But the only fan in that case is a slow 12 cm fan in the power
supply.

Also I've seen someone mention that his 2.8C with stock HSF has a
temperature of 24C - 41C. So my value do seem very high.

you should visit my site & read a bit; see under benchmarks & burn in
....

-- Regards, SPAJKY
& visit site - http://www.spajky.vze.com
Celly-III OC-ed,"Tualatin on BX-Slot1-MoBo!"
E-mail AntiSpam: remove ##

 

[Eddy]

you should visit my site & read a bit; see under benchmarks & burn in

Well, I read that the CPU temperature should be about 10C above ambient when
you boot into windows immediately. When I went into the BIOS right away, it
showed 43C with an ambient temperature of 20C. That was in the morning when
the PC had been turned off for the night. When I go into Windows and let it
run idle, it rises to about 49C. That is with HyperThreading on, which makes
a difference on P4C's.

I've also tested with CPUidle, which does the same thing as SoftCooler. It
did not make any difference in temperature, it stayed at 49C. After that I
have disabled HT. The idle temperature rose to 59C. When I ran CPUidle, it
did drop to 50C (the first 5 degrees very quickly, a couple of seconds).

So when HyperThreading is enabled it probably shuts down all execution units
when they are not used and therefore draws less current and produces less
heat.

The displayed temperatures stil seem way too high to me. But I can't easily
measure temperatures at the bottom of the heatsink. So far I've only been
able to get a temperature reading by turning off the PC and waiting a couple
of minutes for the heat to spread across the heatsink and measure it at the
top or side of the heatsink. That shows 40C max. So maybe my mainboard is
accurately showing the core temperature and other mainboards are showing
lower values to please their users? I've also seen someone with an Abit
IC7-G mainboard reporting almost the same temperatures. That board probably
uses the same WinBond W83627HF chip for hardware monitoring.

Eddy

 

[Spajky]

Well, I read that the CPU temperature should be about 10C above ambient when
you boot into windows immediately. When I went into the BIOS right away, it
showed 43C with an ambient temperature of 20C. That was in the morning when
the PC had been turned off for the night.

thats normal since your P4 consumes quite energy (double than my Cpu)
& working full load while installing windows in your case probably
more time than mines (mine does it in 15 seconds - Win98seLiTE)

When I go into Windows and let it
run idle, it rises to about 49C. That is with HyperThreading on, which makes
a difference on P4C's.

I've also tested with CPUidle, which does the same thing as SoftCooler. It
did not make any difference in temperature, it stayed at 49C. After that I
have disabled HT. The idle temperature rose to 59C. When I ran CPUidle, it
did drop to 50C (the first 5 degrees very quickly, a couple of seconds).

thats another proof that your MoBo reads on die diode

So when HyperThreading is enabled it probably shuts down all execution units
when they are not used and therefore draws less current and produces less
heat.

no, but it looks that not enabling HT spoils softCooling (HLT)
command.

The displayed temperatures stil seem way too high to me.

no, are ok & normal from ondie diode...

you do not have to worry since at 80°C your CPU thermal throttling
kicks in anyway ..

But I can't easily
measure temperatures at the bottom of the heatsink. So far I've only been
able to get a temperature reading by turning off the PC and waiting a couple
of minutes for the heat to spread across the heatsink and measure it at the
top or side of the heatsink. That shows 40C max. So maybe my mainboard is
accurately showing the core temperature and other mainboards are showing
lower values to please their users? I've also seen someone with an Abit
IC7-G mainboard reporting almost the same temperatures. That board probably
uses the same WinBond W83627HF chip for hardware monitoring.

correct!


-- Regards, SPAJKY
& visit site - http://www.spajky.vze.com
Celly-III OC-ed,"Tualatin on BX-Slot1-MoBo!"
E-mail AntiSpam: remove ##

 

[Eddy]

thats normal since your P4 consumes quite energy (double than my Cpu)
& working full load while installing windows in your case probably
more time than mines (mine does it in 15 seconds - Win98seLiTE)

I went into the BIOS, which takes about 20 seconds from the moment I press
the power button. The CPU is probably not doing a lot then, just detecting
devices. When I boot XP it takes about 25 seconds from the moment the
windows startup process starts. But I haven't done anything to optimize XP
yet.

no, but it looks that not enabling HT spoils softCooling (HLT)
command.

I don't think so, because when HT is enabled, the temperature is the same as
when it is disabled and CPUidle is running. So CPUidle works fine when HT is
off. With HT on it is just not necessary to use something like CPUidle,
because the idle temperatures are already lower.

no, are ok & normal from ondie diode...

you do not have to worry since at 80°C your CPU thermal throttling
kicks in anyway ..

According to the spec sheet, the maximum case temperature is 74C for my CPU,
but that is the temperature at the center of the heatspreader. The thermal
control circuit is activated when the processor silicon reaches its maximum
operating temperature. It does not state what that temperatures is. It
should be higher though, so I guess the temperature is OK.

In the Abit forums is a message from Abit about it:
http://forum.abit-usa.com/showthread.php?s=&threadid=11496. Abit states that
the temperatures they report are correct. Other mainboards might not be
using the on die temperature sensor and therefore reporting lower values. So
I guess I'll have to get used to these values although they still seem high.
I'm thinking about replacing the CPU HSF with a Zalman 7000 AlCu and the
North Bridge with a Zalman fanless heatsink. Not for the temperature but for
the noise. I guess that in that case I'll see whether it makes a big
difference and the idle temperatures are lower.

Thanx for your replies,

Eddy

 

[Spajky]

According to the spec sheet, the maximum case temperature is 74C for my CPU,

that means: full load long time (years) of normal operational temp
guaranteed!

but that is the temperature at the center of the heatspreader.

.... hm yes, the on die temp is around 10-15° higher ...

The thermal
control circuit is activated when the processor silicon reaches its maximum
operating temperature. It does not state what that temperatures is. It
should be higher though, so I guess the temperature is OK.

yes, temp for semiconductors is max. allowed to 125°C normally w/o
damage; the problem is that is the point of no return if that is not
controlled fast to prevent thermal runout with thermal throttling or
sistem shut down by CPU or MoBo (case for AMD CPUs & their boards!)

In the Abit forums is a message from Abit about it:
http://forum.abit-usa.com/showthread.php?s=&threadid=11496. Abit states that
the temperatures they report are correct. Other mainboards might not be
using the on die temperature sensor and therefore reporting lower values.

IMHO right ...

So
I guess I'll have to get used to these values although they still seem high.
I'm thinking about replacing the CPU HSF with a Zalman 7000 AlCu and the
North Bridge with a Zalman fanless heatsink. Not for the temperature but for
the noise. I guess that in that case I'll see whether it makes a big
difference and the idle temperatures are lower.

no need for expensive Zalman stuff; put fans on 7V (best) or even min
to 5V (during winter time) ... explanations on my site also ...

-- Regards, SPAJKY
& visit site - http://www.spajky.vze.com
Celly-III OC-ed,"Tualatin on BX-Slot1-MoBo!"
E-mail AntiSpam: remove ##