Glenn Enright wrote:
On Sat, 15 Oct 2005 19:57, Jamie Dobbs wrote:
I built myself an AMD64 based system a week ago using the following
components:
Albatron K8NF4U motherboard
AMD Athlon 64 3200+ (Socket 939)
1GB DDR Memory
Albatron TC6200 video card
Motherboard sensors indicate that the CPU core is running at a constant
65 degrees Celcius and this figure does not change more than a degree
no matter what is being done, it only increased to 66 degrees C while
doing a compile of xorg, kde and gnome which took a few hours.
Should I be worried about these figures? The heatsink feels only
slightly warm to the touch and I am sure it is seated correctly so I
wonder if the BIOS is reporting the right temperatures. Does anyone have
the same board that can help me out here?
Can anyone point me in the right direction to find out what the
"acceptable" temperature range for my CPU is?
Cheers
Jamie
I'm not an expert on AMD chips but that does seem quite high. With intensive
compiles I would expect to see the temp raising about 20 degrees or so,
depending on your fan and sink. How are you monitoring the temp?
through /proc/acpi/thermal? or just from the bios? Or are you lucky enough to
have a readout on your box?
I also am not an expert on AMD chips, but ~65C seems acceptable for an
upper-level temperature to me.
Unfortunately, the AMD documentation
(http://www.amd.com/us-en/Processors/TechnicalResources/0,,30_182_739_7203,00.html)
doesn't really specify what the throttle and shutdown temperatures are
of the processor. They just say that the case temperature should not
exceed 42C, and that Tcase_max is 70C. I am reading that as meaning 70C
is the upper design limit for the processor.
What does bother me, as Glen alluded to, is that you are not seeing a
drop/rise in temperature with load. That indicates that maybe your
kernel configuration isn't correct for the Athlon64. Double check your
kernel configuration, and make sure you have support for the Athlon64 in
your kernel. You might also try enabling "CPU Frequency scaling" with
the "ondemand" governor and the Athlon64 driver.
You could also post the output of dmesg.
FYI, the pentium-m in my laptop idles at around 60C, but will easily
reach 85C under full load. Fortunately, it doesn't throttle until 95C,
and doesn't shutoff until ~105C.
-Richard
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