cat: /proc/acpi/thermal_zone/TZ00/temperature: No such file or directory
Have you got anything similar to temperature under TZ… in /proc/acpi/thermal_zone/ ? There may be nothing there. Trying to find the source of that temp, or its useless to rely on it. There is a better way.
Driver k8temp should be automatically loaded for Sempron cpu, so please post the result of
lsmod | grep k8
k8temp 3312 0
hwmon 2060 2 k8temp,thermal_sys
Good, that’s possibly the temperature source. I have the sensors package installed from vendor openSUSE, oss repo. Install that and you can run “sensors” from commandline as normal user. It should pick up k8temp’s reading of Sempron’s core temp and maybe other sensors on the mobo. Do you have an Asus mobo?
BTW, hddtemp reports my sata drive as 42°C . It has been going for over 4 years at or above that temp probably. The Sempron core temp is 26°C at this time, and ambient is about 15°C. I only have AMD’s original processor fan, with no extra case fan. Unfortunately hddtemp says my PATA is supported, but has no temp sensor.
@6tr6tr, after a couple of hours running, that hddtemp reading increased to 48°C. My HD temperature range is similar to yours, and no cause for concern here.
Hi,
If you are sure there is a problem, drop the frequency in the motherboard bios. (This will loose some performance on all IDE devices.)
The information wrt settings is in the motherboard user guide.
After upgrading to a larger IDE HDD on an old machine the HDD ran very hot to the touch (about 55 deg.) and the system would power down after 10-15 minutes.
The default setting in the bios was set to AUTO which selected Ultra DMA 133 MHz. Lowering the Ultra DMA from from 133 to 100 MHz operation mode solved the problem. Then the HDD ran quite happily at 45 deg.
Temperatures quoted are maximum external hot spot.
On 2010-09-21 19:36, consused wrote:
>
> consused;2225735 Wrote:
>>
>> BTW, hddtemp reports my sata drive as 42°C …
> @6tr6tr, after a couple of hours running, that hddtemp reading
> increased to 48°C. My HD temperature range is similar to yours, and no
> cause for concern here.
]> Elessar:~ # smartctl --attributes /dev/sda | grep Temp ; date
]> 190 Airflow_Temperature_Cel 0x0022 073 061 045 Old_age Always - 27
(Lifetime Min/Max 25/27)
]> 194 Temperature_Celsius 0x0022 027 040 000 Old_age Always - 27 (0 12 0 0)
]> Wed Sep 22 20:48:13 CEST 2010
]> Elessar:~ # for X in sda sdb sdc ; do smartctl --attributes /dev/$X | grep Temp ; done ; date
]> 190 Airflow_Temperature_Cel 0x0022 065 061 045 Old_age Always - 35
(Lifetime Min/Max 25/35)
]> 194 Temperature_Celsius 0x0022 035 040 000 Old_age Always - 35 (0 12 0 0)
]> 190 Airflow_Temperature_Cel 0x0022 065 062 045 Old_age Always - 35
(Lifetime Min/Max 25/35)
]> 194 Temperature_Celsius 0x0022 035 040 000 Old_age Always - 35 (0 12 0 0)
]> 190 Airflow_Temperature_Cel 0x0022 064 060 045 Old_age Always - 36
(Lifetime Min/Max 26/36)
]> 194 Temperature_Celsius 0x0022 036 040 000 Old_age Always - 36 (0 14 0 0)
]> Thu Sep 23 01:39:55 CEST 2010
The computer is mostly idling. There is a fan blowing directly across the drives. Room temperature
is 26…27.
–
Cheers / Saludos,
Carlos E. R.
(from 11.2 x86_64 “Emerald” GM (Elessar))
Per both Western Digital and Seagate specs: Ambient temp range for the drives in a typical desktop HDD is 0 deg C - 60 deg C
Personally, when I designed and built servers I started paying attention at about 52 and took action if drives consistently got over 55. Replacing the flat ribbon cables with round ones often helps reestablish the intended airflow patterns.
For a CPU, Intel suggests a max temp of 70 deg C, but my conversations with Intel engineers (who spoke off the record) indicated that even at 85 C the risk was primarily reduced life expectancy for the CPU.
BTW, the reason the temps are usually higher with the case open is that most case designers try to create flow patterns within the case to channel air to the locations where components will be mounted, and when the case is open the channels are not established and cannot direct air where needed most. I’ve often seen higher temps with the cover off.
On 09/23/2010 02:36 PM, caprus wrote:
>
> Per both Western Digital and Seagate specs: Ambient temp range for the
> drives in a typical desktop HDD is 0 deg C - 60 deg C
>
> Personally, when I designed and built servers I started paying
> attention at about 52 and took action if drives consistently got over
> 55. Replacing the flat ribbon cables with round ones often helps
> reestablish the intended airflow patterns.
>
> For a CPU, Intel suggests a max temp of 70 deg C, but my conversations
> with Intel engineers (who spoke off the record) indicated that even at
> 85 C the risk was primarily reduced life expectancy for the CPU.
There can’t be a fixed value that “break” devices. We only know that at higher temps devices fail
earlier. Manufacturers give a value at which they expect devices to fail more than would be
acceptable. Ah! And there is a high variance for cpus. For some 80 degrees is all right, for others
it is like boiling.
There is somewhere a study by google people, measuring HD failure rate compared with their life
temps. Very interesting. It was commented at the time at the opensuse mail list.
–
Cheers / Saludos,
Carlos E. R.
(from 11.2 x86_64 “Emerald” at Telcontar)
For some 80 degrees is all right, for others it is like boiling.
That is true. I used to have a cpu (some single core AMD) which was always at 80 - 85°C and still worked well. This is not a desirable temperature, of course. 
I checked my two hard drives and an internal Segate with Fan Blowing directly on it read 33 degree C (91.4F) while an external Western Digital in an external eSATA enclosure read 48 Degree C (118F).
Thank You,
Temp of my drives ranges from 28c to 33c.
They are setting right behind fans.
I have my Mobo BIOS set to shut the system down if the CPU gets to 70c (the lowest it will go.) I expect AMD “Cool and Quite” to kick in before then 
fuuyuu:/home/flamebait # hddtemp /dev/sdd
/dev/sdd: WDC WD5000AAKS-22A7B0: 33°C
fuuyuu:/home/flamebait # hddtemp /dev/sdf
/dev/sdf: WDC WD5000AADS-00S9B0: 29°C
fuuyuu:/home/flamebait # hddtemp /dev/sde
/dev/sde: WDC WD5002ABYS-02B1B0: 32°C
fuuyuu:/home/flamebait # hddtemp /dev/sda
/dev/sda: WDC WD5000AVDS-63U7B0: 29°C
fuuyuu:/home/flamebait # hddtemp /dev/sdb
/dev/sdb: WDC WD5000AADS-56S9B0: 28°C
fuuyuu:/home/flamebait # hddtemp /dev/sdc
/dev/sdc: WDC WD5000AVVS-63M8B0: 29°C
On 2010-09-26 02:36, gropiuskalle wrote:
>
>> For some 80 degrees is all right, for others it is like boiling.
>
> That is true. I used to have a cpu (some single core AMD) which was
> always at 80 - 85°C and still worked well. This is not a desirable
> temperature, of course. 
Depends… A higher temperature makes some things easier.
I mean, keeping a high power and small device at, say, a maximum of 50 degrees, is much harder than
at 85 (same power), because the higher temperature gradient increases heat flow.
In other words, for the same power you need a bigger heat sink at a lower temperature.
–
Cheers / Saludos,
Carlos E. R.
(from 11.2 x86_64 “Emerald” at Telcontar)
I added some cheap hd fans to my system for less than $10 each. My drives are now running around 21 deg C.