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  • villeneuve
    replied
    Thanks for your answer, however I forgot to add here, that in the meantime I found out, that k10temp-readings, at least with relatively current AMD-CPUs isn't a real temperature reading at all, but a direct result of a calculation based purely on current CPU-frequency and workload. You can also see that very clearly, that the temperatur k10temp gives drops instantly by several degrees when you stop a CPU-stresstest and immediately jumps by up when you re-start that stresstest. Windows software takes those data to very roughly calculate CPU-temperatures. The way the calculations are done is sadly only known to the manufacturers of the mainboards and/or system health chips. I've also not found any info about a way to do the same with lm_sensors. So if you should rediscover something about that please tell us here.
    In my case, with Gigabyte F2A88XM-D3H, A8-7600 Kaveri and the fan of the CPU-cooler Thermalright AXP-200, the fan would allow the fancontrol software to go below 700 rpm anyway and at that speed the cooling seems to be very good anyway, even after very long stress tests, so I was confident enough so that I've now set a very high value for k10temp to reach before the fanspeeds start climbing.
    What I don't like about fancontrol and/or lm-sensors (IDK which is to blame here) is that it's seems to be unable to take smartmontools' temperature measurements of harddisks into account.

    Leave a comment:


  • duby229
    replied
    Originally posted by villeneuve View Post
    I moved a step forward :-) By putting all cores under maximum stress I figured out, that k10temp indeed is working, but at idle it will not move above 0? C which equates to about 31? C in the BIOS. I'll now figure out how high the real temperatur rises during a longer period of maximum stress and set fancontrol accordingly. Thanks guys!
    That sounds like sensor calibration is off. I know lm_sensors can used to calibrate the sensor data, but off the top of my head I'm not sure how to do it.

    Leave a comment:


  • villeneuve
    replied
    I moved a step forward :-) By putting all cores under maximum stress I figured out, that k10temp indeed is working, but at idle it will not move above 0? C which equates to about 31? C in the BIOS. I'll now figure out how high the real temperatur rises during a longer period of maximum stress and set fancontrol accordingly. Thanks guys!

    Leave a comment:


  • Ansla
    replied
    One thing to consider is that the AMD sensors are known to be highly inaccurate at low temperature even in BIOS or Windows. Just ran sensors again and this is the result:
    Code:
    sensors
    radeon-pci-0008
    Adapter: PCI adapter
    temp1:         +8.0?C  (crit = +120.0?C, hyst = +90.0?C)
    
    k10temp-pci-00c3
    Adapter: PCI adapter
    temp1:         +8.2?C  (high = +70.0?C)
                           (crit = +70.0?C, hyst = +69.0?C)
    Room temperature in here is over 20?C so the values shown are clearly wrong in this case, but it's supposed to be accurate when the temperature gets close to critical.

    Leave a comment:


  • villeneuve
    replied
    Thanks for your reply! I found out via the lm-sensor website ,where they have a device-list, that AMD Kaveri CPU's sensor is only supported from Kernel 3.14 onwards. I therefor upgraded to the backported 3.16 kernel and now it shows the k10temp-pci-00c3 you mentioned as well, but in my case current CPU temperature is shown as 0.0? C, but surely the Thermalright AXP-200 isn't that good ;-)
    It shows the right data for the high, crit and hyst temperatures though.
    Any suggestiones why the right CPU temp isn't shown?

    Leave a comment:


  • Ansla
    replied
    sensors should show something like this before the it87 sensor:
    Code:
    radeon-pci-0008
    Adapter: PCI adapter
    temp1:        +26.0?C  (crit = +120.0?C, hyst = +90.0?C)
    
    k10temp-pci-00c3
    Adapter: PCI adapter
    temp1:        +25.5?C  (high = +70.0?C)
                           (crit = +70.0?C, hyst = +69.0?C)
    The first one is the GPU sensor, provided by the radeon driver, if you use catalyst it probably has a different sensor. The second one is the CPU sensor. If you don't see that one try a `modprobe k10temp`.

    Leave a comment:


  • villeneuve
    replied
    Sorry for tripple posting!
    I added it87 force_id=0x8728 to /etc/modules and now the sensors from the IT-chip show up even after rebooting. I'm still questioning wether the AMD CPU's sensor is recognized. sensors shows temp1, temp2 and temp3, but to me it looks like those are from the IT-Chip.

    Leave a comment:


  • villeneuve
    replied
    This is an addition to my previous post, which I can't edit right now because it has to be approved by a forum-moderator first.
    I tried again: I rebooted and sensors gives me no sensors found. Then I ran sudo modprobe it87 force_id=0x8728 . Immediately after that I ran sensors again and I got the data from the IT-chip. How can I put the sudo modprobe it87 force_id=0x8728 thing into the autostart on boot and where/how can I persistently get the measurements from the AMD CPU sensor?

    Leave a comment:


  • villeneuve
    replied
    I can't get lm-sensors tp work on this board. I'm running Ubuntu 14.04 with kernel 3.12.0-7. Default sensors-detect gives me "Sorry, no sensors were detected". I then did download and run a current sensors-detect by
    Code:
    cd /tmp
    wget http://www.lm-sensors.org/svn/lm-sensors/trunk/prog/detect/sensors-detect
    sudo perl sensors-detect
    This found the ITE IT8620E Super IO sensors with the note "Driver 'to be written'" and an AMD Family 15h thermal sensors with the driver k10temp.

    I then tried various ways forward and sensors did run showing the data of the IT8620E, but I think non from the AMD CPU. However when I reboot the machine ALL config done on lm-sensors is gone and the sensors command gives me a "No sensors found" again :-(

    This machine will be for my sister to run VDR, Kodi and OwnCloud, but with the default fan-control by the Gigabyte BIOS it's total crap and loud as hell.

    So please could somebody tell me how to continue properly after running "sudo perl sensors-detect"!

    Leave a comment:


  • gradinaruvasile
    replied
    Originally posted by Adarion View Post
    A little addition to the thread:

    The GA-E2100N (soldered Kabini) board also features the ITE IT8620 Super IO chip.
    I couldn't read the chip info from any pix on the net (photos were just too small / bokeh blur) so I asked Gigabyte and they told me. Cause I wanted to buy one but I tend to make sure things work with the Penguin beforehand.

    lm_sensors says there is currently no datasheet but the chip might be somewhat compatible to some other ITE but be careful and so on.
    ( http://www.lm-sensors.org/wiki/Devices )

    Gnah! That board would have been really nice for a CarPC. And with SuperIO supported one could have started thinking about coreboot.
    All other chips are normally Realtek and AMD and thus tend to work.

    Also the hp635 Laptop (E350 matte screen, all Atheros, Realtek, AMD) uses an ITE IT8518 which is also unsupported.

    I know Biostar is also somewhat Linux-ignorant but I ordered an AM1 (AM1MHP) and the ITE IT8728F is considered to be working. I'll see when the board arrives. Chances are that their soldered-Kabini (A68N-2100) also uses the same chip.

    The Asus A88XPlus (A88X chipset but also 3 classic PCIs and lots of other interfaces) looks totally beautiful for a Kaveri setup but this Fintek F71811 still seems unsupported.


    Maybe I, as an end-user, should write an email to ITE and Fintek?
    Did you tried
    Code:
    sudo modprobe it87 force_id=0x8728
    then
    Code:
    sensors
    ?

    Leave a comment:

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